Thermostate Setting for Failing Squarrel Fan

[Scott Forman]

Thanks you. New project!

Scott

--- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@...>
wrote:
>
> Scott,
> Use the 12V + wire going to the squirrel cage fan as a "trigger"
for
> a Bosch style relay. You will want to supply the main voltage to the
> fan directly from a 12V source in your charger/Rediline compartment.
> The fan will draw better than 12 amps, which would burn out the
> thermostat contacts over time if you don't use the relay. Be sure to
> also use 10 or 12 ga. wire for the fan. The trigger wire from the
> squirrel cage can be lighter size since it does not carry much of a
load.
> I located the Bosch relay in the charger compartment and ran the
> wires from the squirrel cage and to the fan through a 1/2" hole in
the
> compartment wall. Make sure to use a grommet to prevent chafing and
> try to enclose all of the wires in wire loom or some sort of
conduit.
> If you are not familiar with how to wire the relay, this is a great
> project for learning- there are numerous links floating around the
web
> with instructions. Also be sure to install a 20 A fuse between the
12V
> source and the relay.
>
> Shane Fedeli
> 85PT40
> Hershey, PA
>
>
> --- In WanderlodgeForum@yahoogroups.com, "Scott Forman" <sforman@>
> wrote:
> >
> > Can someone explain how to run the wires for this set up?
> >
> > Scott Forman
> > 86 PT38
> > Memphis
> >
> > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@>
> > wrote:
> > >
> > > Hi Curt,
> > >
> > > My thermostat is mounted in the ceiling of the engine
compartment
> > > just above the alternator on my 6V92. It is about the size of a
> > small
> > > bottle cap. I used it, in conjuction with a bosch relay, to
power a
> > > Hayden fan that cools the engine compartment. I used the
largest fan
> > > that I could find at Advanced Auto parts and mounted the fan
behind
> > > the grill that provides access to the curbside of the engine
> > compartment.
> > > Originally, I had set my fan to expel the hot air and work in
> > > tandem with the large engine fan to pass air through the
> > compartment.
> > > Once parked, however, I have achieved better results by drawing
> > cool,
> > > outside air into the engine compartment, expelling it through
the
> > > radiator. I usually just reverse the wires on the fan, causing
it to
> > > run backwards. This would cool the compartment so fast, that
the
> > relay
> > > would shut it off, so I also installed a SPDT switch to
override the
> > > thermostat and leave the fan on. I may eventually install at
DPDT
> > > switch to reverse the polarity without having to pull the wires
off
> > > the fan. This setup has worked fine for about 12K miles and the
fan
> > > does not seem to mind running in reverse.
> > >
> > > Shane Fedeli
> > > 85PT40
> > > Hershey, PA
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
> > > wrote:
> > > >
> > > > Several of us have recently posted about the ratteling or non
> > working
> > > > fan that is mounted in the upper rear area of the engine
> > compartment.
> > > > Does anyone know the thermostat degree setting for that fan?
> > Anyone
> > > > know where that thermostate is located?
> > > >
> > > > My thought at this time is to control the add-in Hayden fans
to
> > run
> > > > off the same controls.
> > > > --
> > > > Curt Sprenger
> > > > 1987 PT38 8V92 "MacAttack Racing"
> > > > Anaheim Hills, CA
> > > >
> > >
> >
>

[Scott Forman]

There are two wires going to my original fan, green & yellow. Is it
safe to assume green is ground and yellow is hot?

Thanks
Scott

--- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@...>
wrote:
>
> Scott,
> Use the 12V + wire going to the squirrel cage fan as a "trigger"
for
> a Bosch style relay. You will want to supply the main voltage to the
> fan directly from a 12V source in your charger/Rediline compartment.
> The fan will draw better than 12 amps, which would burn out the
> thermostat contacts over time if you don't use the relay. Be sure to
> also use 10 or 12 ga. wire for the fan. The trigger wire from the
> squirrel cage can be lighter size since it does not carry much of a
load.
> I located the Bosch relay in the charger compartment and ran the
> wires from the squirrel cage and to the fan through a 1/2" hole in
the
> compartment wall. Make sure to use a grommet to prevent chafing and
> try to enclose all of the wires in wire loom or some sort of
conduit.
> If you are not familiar with how to wire the relay, this is a great
> project for learning- there are numerous links floating around the
web
> with instructions. Also be sure to install a 20 A fuse between the
12V
> source and the relay.
>
> Shane Fedeli
> 85PT40
> Hershey, PA
>
>
> --- In WanderlodgeForum@yahoogroups.com, "Scott Forman" <sforman@>
> wrote:
> >
> > Can someone explain how to run the wires for this set up?
> >
> > Scott Forman
> > 86 PT38
> > Memphis
> >
> > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@>
> > wrote:
> > >
> > > Hi Curt,
> > >
> > > My thermostat is mounted in the ceiling of the engine
compartment
> > > just above the alternator on my 6V92. It is about the size of a
> > small
> > > bottle cap. I used it, in conjuction with a bosch relay, to
power a
> > > Hayden fan that cools the engine compartment. I used the
largest fan
> > > that I could find at Advanced Auto parts and mounted the fan
behind
> > > the grill that provides access to the curbside of the engine
> > compartment.
> > > Originally, I had set my fan to expel the hot air and work in
> > > tandem with the large engine fan to pass air through the
> > compartment.
> > > Once parked, however, I have achieved better results by drawing
> > cool,
> > > outside air into the engine compartment, expelling it through
the
> > > radiator. I usually just reverse the wires on the fan, causing
it to
> > > run backwards. This would cool the compartment so fast, that
the
> > relay
> > > would shut it off, so I also installed a SPDT switch to
override the
> > > thermostat and leave the fan on. I may eventually install at
DPDT
> > > switch to reverse the polarity without having to pull the wires
off
> > > the fan. This setup has worked fine for about 12K miles and the
fan
> > > does not seem to mind running in reverse.
> > >
> > > Shane Fedeli
> > > 85PT40
> > > Hershey, PA
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
> > > wrote:
> > > >
> > > > Several of us have recently posted about the ratteling or non
> > working
> > > > fan that is mounted in the upper rear area of the engine
> > compartment.
> > > > Does anyone know the thermostat degree setting for that fan?
> > Anyone
> > > > know where that thermostate is located?
> > > >
> > > > My thought at this time is to control the add-in Hayden fans
to
> > run
> > > > off the same controls.
> > > > --
> > > > Curt Sprenger
> > > > 1987 PT38 8V92 "MacAttack Racing"
> > > > Anaheim Hills, CA
> > > >
> > >
> >
>

[Scott Forman]

One more question...by using a 12v source for the relay from the
charger compartment, the juice will not be cut off by the master
switch under the dash. What's the word on the possibility of the
thermostat malfunctioning and causing the fan to run continuously &
kill the batts?

Scott

--- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@...>
wrote:
>
> Scott,
> Use the 12V + wire going to the squirrel cage fan as a "trigger"
for
> a Bosch style relay. You will want to supply the main voltage to the
> fan directly from a 12V source in your charger/Rediline compartment.
> The fan will draw better than 12 amps, which would burn out the
> thermostat contacts over time if you don't use the relay. Be sure to
> also use 10 or 12 ga. wire for the fan. The trigger wire from the
> squirrel cage can be lighter size since it does not carry much of a
load.
> I located the Bosch relay in the charger compartment and ran the
> wires from the squirrel cage and to the fan through a 1/2" hole in
the
> compartment wall. Make sure to use a grommet to prevent chafing and
> try to enclose all of the wires in wire loom or some sort of
conduit.
> If you are not familiar with how to wire the relay, this is a great
> project for learning- there are numerous links floating around the
web
> with instructions. Also be sure to install a 20 A fuse between the
12V
> source and the relay.
>
> Shane Fedeli
> 85PT40
> Hershey, PA
>
>
> --- In WanderlodgeForum@yahoogroups.com, "Scott Forman" <sforman@>
> wrote:
> >
> > Can someone explain how to run the wires for this set up?
> >
> > Scott Forman
> > 86 PT38
> > Memphis
> >
> > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@>
> > wrote:
> > >
> > > Hi Curt,
> > >
> > > My thermostat is mounted in the ceiling of the engine
compartment
> > > just above the alternator on my 6V92. It is about the size of a
> > small
> > > bottle cap. I used it, in conjuction with a bosch relay, to
power a
> > > Hayden fan that cools the engine compartment. I used the
largest fan
> > > that I could find at Advanced Auto parts and mounted the fan
behind
> > > the grill that provides access to the curbside of the engine
> > compartment.
> > > Originally, I had set my fan to expel the hot air and work in
> > > tandem with the large engine fan to pass air through the
> > compartment.
> > > Once parked, however, I have achieved better results by drawing
> > cool,
> > > outside air into the engine compartment, expelling it through
the
> > > radiator. I usually just reverse the wires on the fan, causing
it to
> > > run backwards. This would cool the compartment so fast, that
the
> > relay
> > > would shut it off, so I also installed a SPDT switch to
override the
> > > thermostat and leave the fan on. I may eventually install at
DPDT
> > > switch to reverse the polarity without having to pull the wires
off
> > > the fan. This setup has worked fine for about 12K miles and the
fan
> > > does not seem to mind running in reverse.
> > >
> > > Shane Fedeli
> > > 85PT40
> > > Hershey, PA
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
> > > wrote:
> > > >
> > > > Several of us have recently posted about the ratteling or non
> > working
> > > > fan that is mounted in the upper rear area of the engine
> > compartment.
> > > > Does anyone know the thermostat degree setting for that fan?
> > Anyone
> > > > know where that thermostate is located?
> > > >
> > > > My thought at this time is to control the add-in Hayden fans
to
> > run
> > > > off the same controls.
> > > > --
> > > > Curt Sprenger
> > > > 1987 PT38 8V92 "MacAttack Racing"
> > > > Anaheim Hills, CA
> > > >
> > >
> >
>

[Howard O. Truitt]

Scott,
That would be a safe assumption.
Howard T, Sowega, 86 PT40

----- Original Message -----
From: Scott Forman
To: WanderlodgeForum@yahoogroups.com
Sent: Saturday, August 18, 2007 3:36 PM
Subject: [WanderlodgeForum] Re: Thermostate Setting for Failing Squarrel Fan


There are two wires going to my original fan, green & yellow. Is it
safe to assume green is ground and yellow is hot?

Thanks
Scott

--- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@...>
wrote:
>
> Scott,
> Use the 12V + wire going to the squirrel cage fan as a "trigger"
for
> a Bosch style relay. You will want to supply the main voltage to the
> fan directly from a 12V source in your charger/Rediline compartment.
> The fan will draw better than 12 amps, which would burn out the
> thermostat contacts over time if you don't use the relay. Be sure to
> also use 10 or 12 ga. wire for the fan. The trigger wire from the
> squirrel cage can be lighter size since it does not carry much of a
load.
> I located the Bosch relay in the charger compartment and ran the
> wires from the squirrel cage and to the fan through a 1/2" hole in
the
> compartment wall. Make sure to use a grommet to prevent chafing and
> try to enclose all of the wires in wire loom or some sort of
conduit.
> If you are not familiar with how to wire the relay, this is a great
> project for learning- there are numerous links floating around the
web
> with instructions. Also be sure to install a 20 A fuse between the
12V
> source and the relay.
>
> Shane Fedeli
> 85PT40
> Hershey, PA
>
>
> --- In WanderlodgeForum@yahoogroups.com, "Scott Forman" <sforman@>
> wrote:
> >
> > Can someone explain how to run the wires for this set up?
> >
> > Scott Forman
> > 86 PT38
> > Memphis
> >
> > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@>
> > wrote:
> > >
> > > Hi Curt,
> > >
> > > My thermostat is mounted in the ceiling of the engine
compartment
> > > just above the alternator on my 6V92. It is about the size of a
> > small
> > > bottle cap. I used it, in conjuction with a bosch relay, to
power a
> > > Hayden fan that cools the engine compartment. I used the
largest fan
> > > that I could find at Advanced Auto parts and mounted the fan
behind
> > > the grill that provides access to the curbside of the engine
> > compartment.
> > > Originally, I had set my fan to expel the hot air and work in
> > > tandem with the large engine fan to pass air through the
> > compartment.
> > > Once parked, however, I have achieved better results by drawing
> > cool,
> > > outside air into the engine compartment, expelling it through
the
> > > radiator. I usually just reverse the wires on the fan, causing
it to
> > > run backwards. This would cool the compartment so fast, that
the
> > relay
> > > would shut it off, so I also installed a SPDT switch to
override the
> > > thermostat and leave the fan on. I may eventually install at
DPDT
> > > switch to reverse the polarity without having to pull the wires
off
> > > the fan. This setup has worked fine for about 12K miles and the
fan
> > > does not seem to mind running in reverse.
> > >
> > > Shane Fedeli
> > > 85PT40
> > > Hershey, PA
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
> > > wrote:
> > > >
> > > > Several of us have recently posted about the ratteling or non
> > working
> > > > fan that is mounted in the upper rear area of the engine
> > compartment.
> > > > Does anyone know the thermostat degree setting for that fan?
> > Anyone
> > > > know where that thermostate is located?
> > > >
> > > > My thought at this time is to control the add-in Hayden fans
to
> > run
> > > > off the same controls.
> > > > --
> > > > Curt Sprenger
> > > > 1987 PT38 8V92 "MacAttack Racing"
> > > > Anaheim Hills, CA
> > > >
> > >
> >
>






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[Non-text portions of this message have been removed]

[Gregory OConnor]

Test each wire for continuity to ground.

Be sure your multimeter batteries are good. Turn to omega X1 test the
meter by touching the probes together. when probes touch each other,
the meter reads a value of one. when probes are touching nothing, the
meter reads infinity.

put one probe to ground, and one on a wire. if the meter stays on
infinity as it did when the probes were not touching each other in
the test, the items on each probe are not 'continious'. If you touch
one wire and ground and the meter moves to value of one, that wire
and that ground are continious hence wire is hooked to ground.

If a value between one and infinity is displayed on a ground wire,
that reveals that the ground wire is compramised. the value is
called resistance.


GregoryO'Connor
94ptRomolandCa --- In WanderlodgeForum@yahoogroups.com, "Scott
Forman" <sforman@...> wrote:
>
> There are two wires going to my original fan, green & yellow. Is
it
> safe to assume green is ground and yellow is hot?
>
> Thanks
> Scott
>
> --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@>
> wrote:
> >
> > Scott,
> > Use the 12V + wire going to the squirrel cage fan as
a "trigger"
> for
> > a Bosch style relay. You will want to supply the main voltage to
the
> > fan directly from a 12V source in your charger/Rediline
compartment.
> > The fan will draw better than 12 amps, which would burn out the
> > thermostat contacts over time if you don't use the relay. Be sure
to
> > also use 10 or 12 ga. wire for the fan. The trigger wire from the
> > squirrel cage can be lighter size since it does not carry much of
a
> load.
> > I located the Bosch relay in the charger compartment and ran the
> > wires from the squirrel cage and to the fan through a 1/2" hole
in
> the
> > compartment wall. Make sure to use a grommet to prevent chafing
and
> > try to enclose all of the wires in wire loom or some sort of
> conduit.
> > If you are not familiar with how to wire the relay, this is a
great
> > project for learning- there are numerous links floating around
the
> web
> > with instructions. Also be sure to install a 20 A fuse between
the
> 12V
> > source and the relay.
> >
> > Shane Fedeli
> > 85PT40
> > Hershey, PA
> >
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Scott Forman" <sforman@>
> > wrote:
> > >
> > > Can someone explain how to run the wires for this set up?
> > >
> > > Scott Forman
> > > 86 PT38
> > > Memphis
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@>
> > > wrote:
> > > >
> > > > Hi Curt,
> > > >
> > > > My thermostat is mounted in the ceiling of the engine
> compartment
> > > > just above the alternator on my 6V92. It is about the size of
a
> > > small
> > > > bottle cap. I used it, in conjuction with a bosch relay, to
> power a
> > > > Hayden fan that cools the engine compartment. I used the
> largest fan
> > > > that I could find at Advanced Auto parts and mounted the fan
> behind
> > > > the grill that provides access to the curbside of the engine
> > > compartment.
> > > > Originally, I had set my fan to expel the hot air and work
in
> > > > tandem with the large engine fan to pass air through the
> > > compartment.
> > > > Once parked, however, I have achieved better results by
drawing
> > > cool,
> > > > outside air into the engine compartment, expelling it through
> the
> > > > radiator. I usually just reverse the wires on the fan,
causing
> it to
> > > > run backwards. This would cool the compartment so fast, that
> the
> > > relay
> > > > would shut it off, so I also installed a SPDT switch to
> override the
> > > > thermostat and leave the fan on. I may eventually install at
> DPDT
> > > > switch to reverse the polarity without having to pull the
wires
> off
> > > > the fan. This setup has worked fine for about 12K miles and
the
> fan
> > > > does not seem to mind running in reverse.
> > > >
> > > > Shane Fedeli
> > > > 85PT40
> > > > Hershey, PA
> > > >
> > > > --- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
> > > > wrote:
> > > > >
> > > > > Several of us have recently posted about the ratteling or
non
> > > working
> > > > > fan that is mounted in the upper rear area of the engine
> > > compartment.
> > > > > Does anyone know the thermostat degree setting for that
fan?
> > > Anyone
> > > > > know where that thermostate is located?
> > > > >
> > > > > My thought at this time is to control the add-in Hayden
fans
> to
> > > run
> > > > > off the same controls.
> > > > > --
> > > > > Curt Sprenger
> > > > > 1987 PT38 8V92 "MacAttack Racing"
> > > > > Anaheim Hills, CA
> > > > >
> > > >
> > >
> >
>

[sfedeli3]

Hi Scott,

Yes, green wire should go to a screw on the frame of the fan or
chassis. The yellow one goes to the Snap Ring thermostat. Use the
yellow one as your trigger wire source for the fan. BTW- if your
thermostat is bad, Grainger has them too.

Shane Fedeli
85PT40
Hershey, PA

--- In WanderlodgeForum@yahoogroups.com, "Scott Forman" <sforman@...>
wrote:
>
> There are two wires going to my original fan, green & yellow. Is it
> safe to assume green is ground and yellow is hot?
>
> Thanks
> Scott
>
> --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@>
> wrote:
> >
> > Scott,
> > Use the 12V + wire going to the squirrel cage fan as a "trigger"
> for
> > a Bosch style relay. You will want to supply the main voltage to the
> > fan directly from a 12V source in your charger/Rediline compartment.
> > The fan will draw better than 12 amps, which would burn out the
> > thermostat contacts over time if you don't use the relay. Be sure to
> > also use 10 or 12 ga. wire for the fan. The trigger wire from the
> > squirrel cage can be lighter size since it does not carry much of a
> load.
> > I located the Bosch relay in the charger compartment and ran the
> > wires from the squirrel cage and to the fan through a 1/2" hole in
> the
> > compartment wall. Make sure to use a grommet to prevent chafing and
> > try to enclose all of the wires in wire loom or some sort of
> conduit.
> > If you are not familiar with how to wire the relay, this is a great
> > project for learning- there are numerous links floating around the
> web
> > with instructions. Also be sure to install a 20 A fuse between the
> 12V
> > source and the relay.
> >
> > Shane Fedeli
> > 85PT40
> > Hershey, PA
> >
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Scott Forman" <sforman@>
> > wrote:
> > >
> > > Can someone explain how to run the wires for this set up?
> > >
> > > Scott Forman
> > > 86 PT38
> > > Memphis
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@>
> > > wrote:
> > > >
> > > > Hi Curt,
> > > >
> > > > My thermostat is mounted in the ceiling of the engine
> compartment
> > > > just above the alternator on my 6V92. It is about the size of a
> > > small
> > > > bottle cap. I used it, in conjuction with a bosch relay, to
> power a
> > > > Hayden fan that cools the engine compartment. I used the
> largest fan
> > > > that I could find at Advanced Auto parts and mounted the fan
> behind
> > > > the grill that provides access to the curbside of the engine
> > > compartment.
> > > > Originally, I had set my fan to expel the hot air and work in
> > > > tandem with the large engine fan to pass air through the
> > > compartment.
> > > > Once parked, however, I have achieved better results by drawing
> > > cool,
> > > > outside air into the engine compartment, expelling it through
> the
> > > > radiator. I usually just reverse the wires on the fan, causing
> it to
> > > > run backwards. This would cool the compartment so fast, that
> the
> > > relay
> > > > would shut it off, so I also installed a SPDT switch to
> override the
> > > > thermostat and leave the fan on. I may eventually install at
> DPDT
> > > > switch to reverse the polarity without having to pull the wires
> off
> > > > the fan. This setup has worked fine for about 12K miles and the
> fan
> > > > does not seem to mind running in reverse.
> > > >
> > > > Shane Fedeli
> > > > 85PT40
> > > > Hershey, PA
> > > >
> > > > --- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
> > > > wrote:
> > > > >
> > > > > Several of us have recently posted about the ratteling or non
> > > working
> > > > > fan that is mounted in the upper rear area of the engine
> > > compartment.
> > > > > Does anyone know the thermostat degree setting for that fan?
> > > Anyone
> > > > > know where that thermostate is located?
> > > > >
> > > > > My thought at this time is to control the add-in Hayden fans
> to
> > > run
> > > > > off the same controls.
> > > > > --
> > > > > Curt Sprenger
> > > > > 1987 PT38 8V92 "MacAttack Racing"
> > > > > Anaheim Hills, CA
> > > > >
> > > >
> > >
> >
>

[Scott Forman]

OK...still fighting this project, need some suggestions.

Everything is mounted and installed, but I cannot get the fan to
engage from the original thermostat. When I apply a flame to the
thermostat, I can hear it click and a small voltage begins flowing to
the original squirrel-cage wire. The problem, though, is that the
voltage at that wire is very weak, varying from less than 1 volt to
around 5. I cannot identify anything that makes the voltage change.
This voltage is not enough to close the relay and turn the fan on.

Any suggestions as to what is causing the voltage to be low or how to
fix it? I guess this may be the reason the original fan quit working
in the first place.

Scott

--- In WanderlodgeForum@yahoogroups.com, "Howard O. Truitt"
wrote:
>
> Scott,
> That would be a safe assumption.
> Howard T, Sowega, 86 PT40
>
> ----- Original Message -----
> From: Scott Forman
> To: WanderlodgeForum@yahoogroups.com
> Sent: Saturday, August 18, 2007 3:36 PM
> Subject: [WanderlodgeForum] Re: Thermostate Setting for Failing
Squarrel Fan
>
>
> There are two wires going to my original fan, green & yellow. Is
it
> safe to assume green is ground and yellow is hot?
>
> Thanks
> Scott
>
> --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@>
> wrote:
> >
> > Scott,
> > Use the 12V + wire going to the squirrel cage fan as
a "trigger"
> for
> > a Bosch style relay. You will want to supply the main voltage
to the
> > fan directly from a 12V source in your charger/Rediline
compartment.
> > The fan will draw better than 12 amps, which would burn out the
> > thermostat contacts over time if you don't use the relay. Be
sure to
> > also use 10 or 12 ga. wire for the fan. The trigger wire from
the
> > squirrel cage can be lighter size since it does not carry much
of a
> load.
> > I located the Bosch relay in the charger compartment and ran the
> > wires from the squirrel cage and to the fan through a 1/2" hole
in
> the
> > compartment wall. Make sure to use a grommet to prevent chafing
and
> > try to enclose all of the wires in wire loom or some sort of
> conduit.
> > If you are not familiar with how to wire the relay, this is a
great
> > project for learning- there are numerous links floating around
the
> web
> > with instructions. Also be sure to install a 20 A fuse between
the
> 12V
> > source and the relay.
> >
> > Shane Fedeli
> > 85PT40
> > Hershey, PA
> >
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Scott Forman"
<sforman@>
> > wrote:
> > >
> > > Can someone explain how to run the wires for this set up?
> > >
> > > Scott Forman
> > > 86 PT38
> > > Memphis
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3"
<sfedeli3@>
> > > wrote:
> > > >
> > > > Hi Curt,
> > > >
> > > > My thermostat is mounted in the ceiling of the engine
> compartment
> > > > just above the alternator on my 6V92. It is about the size
of a
> > > small
> > > > bottle cap. I used it, in conjuction with a bosch relay, to
> power a
> > > > Hayden fan that cools the engine compartment. I used the
> largest fan
> > > > that I could find at Advanced Auto parts and mounted the
fan
> behind
> > > > the grill that provides access to the curbside of the
engine
> > > compartment.
> > > > Originally, I had set my fan to expel the hot air and work
in
> > > > tandem with the large engine fan to pass air through the
> > > compartment.
> > > > Once parked, however, I have achieved better results by
drawing
> > > cool,
> > > > outside air into the engine compartment, expelling it
through
> the
> > > > radiator. I usually just reverse the wires on the fan,
causing
> it to
> > > > run backwards. This would cool the compartment so fast,
that
> the
> > > relay
> > > > would shut it off, so I also installed a SPDT switch to
> override the
> > > > thermostat and leave the fan on. I may eventually install
at
> DPDT
> > > > switch to reverse the polarity without having to pull the
wires
> off
> > > > the fan. This setup has worked fine for about 12K miles and
the
> fan
> > > > does not seem to mind running in reverse.
> > > >
> > > > Shane Fedeli
> > > > 85PT40
> > > > Hershey, PA
> > > >
> > > > --- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
> > > > wrote:
> > > > >
> > > > > Several of us have recently posted about the ratteling or
non
> > > working
> > > > > fan that is mounted in the upper rear area of the engine
> > > compartment.
> > > > > Does anyone know the thermostat degree setting for that
fan?
> > > Anyone
> > > > > know where that thermostate is located?
> > > > >
> > > > > My thought at this time is to control the add-in Hayden
fans
> to
> > > run
> > > > > off the same controls.
> > > > > --
> > > > > Curt Sprenger
> > > > > 1987 PT38 8V92 "MacAttack Racing"
> > > > > Anaheim Hills, CA
> > > > >
> > > >
> > >
> >
>
>
>
>
>
>
> --------------------------------------------------------------------
----------
>
>
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.476 / Virus Database: 269.11.19/955 - Release Date:
8/15/2007 4:55 PM
>
>
> [Non-text portions of this message have been removed]
>

[Howard O. Truitt]

Scott,
Pull the thermostat and check the voltage going to the thermostat. May need a
new thermostat.
Howard T., Sowega, 86 PT40, 8V92


----- Original Message -----
From: Scott Forman
To: WanderlodgeForum@yahoogroups.com
Sent: Monday, August 20, 2007 12:57 PM
Subject: [WanderlodgeForum] Re: Thermostate Setting for Failing Squarrel Fan


OK...still fighting this project, need some suggestions.

Everything is mounted and installed, but I cannot get the fan to
engage from the original thermostat. When I apply a flame to the
thermostat, I can hear it click and a small voltage begins flowing to
the original squirrel-cage wire. The problem, though, is that the
voltage at that wire is very weak, varying from less than 1 volt to
around 5. I cannot identify anything that makes the voltage change.
This voltage is not enough to close the relay and turn the fan on.

Any suggestions as to what is causing the voltage to be low or how to
fix it? I guess this may be the reason the original fan quit working
in the first place.

Scott

--- In WanderlodgeForum@yahoogroups.com, "Howard O. Truitt"
wrote:
>
> Scott,
> That would be a safe assumption.
> Howard T, Sowega, 86 PT40
>
> ----- Original Message -----
> From: Scott Forman
> To: WanderlodgeForum@yahoogroups.com
> Sent: Saturday, August 18, 2007 3:36 PM
> Subject: [WanderlodgeForum] Re: Thermostate Setting for Failing
Squarrel Fan
>
>
> There are two wires going to my original fan, green & yellow. Is
it
> safe to assume green is ground and yellow is hot?
>
> Thanks
> Scott
>
> --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@>
> wrote:
> >
> > Scott,
> > Use the 12V + wire going to the squirrel cage fan as
a "trigger"
> for
> > a Bosch style relay. You will want to supply the main voltage
to the
> > fan directly from a 12V source in your charger/Rediline
compartment.
> > The fan will draw better than 12 amps, which would burn out the
> > thermostat contacts over time if you don't use the relay. Be
sure to
> > also use 10 or 12 ga. wire for the fan. The trigger wire from
the
> > squirrel cage can be lighter size since it does not carry much
of a
> load.
> > I located the Bosch relay in the charger compartment and ran the
> > wires from the squirrel cage and to the fan through a 1/2" hole
in
> the
> > compartment wall. Make sure to use a grommet to prevent chafing
and
> > try to enclose all of the wires in wire loom or some sort of
> conduit.
> > If you are not familiar with how to wire the relay, this is a
great
> > project for learning- there are numerous links floating around
the
> web
> > with instructions. Also be sure to install a 20 A fuse between
the
> 12V
> > source and the relay.
> >
> > Shane Fedeli
> > 85PT40
> > Hershey, PA
> >
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Scott Forman"
<sforman@>
> > wrote:
> > >
> > > Can someone explain how to run the wires for this set up?
> > >
> > > Scott Forman
> > > 86 PT38
> > > Memphis
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3"
<sfedeli3@>
> > > wrote:
> > > >
> > > > Hi Curt,
> > > >
> > > > My thermostat is mounted in the ceiling of the engine
> compartment
> > > > just above the alternator on my 6V92. It is about the size
of a
> > > small
> > > > bottle cap. I used it, in conjuction with a bosch relay, to
> power a
> > > > Hayden fan that cools the engine compartment. I used the
> largest fan
> > > > that I could find at Advanced Auto parts and mounted the
fan
> behind
> > > > the grill that provides access to the curbside of the
engine
> > > compartment.
> > > > Originally, I had set my fan to expel the hot air and work
in
> > > > tandem with the large engine fan to pass air through the
> > > compartment.
> > > > Once parked, however, I have achieved better results by
drawing
> > > cool,
> > > > outside air into the engine compartment, expelling it
through
> the
> > > > radiator. I usually just reverse the wires on the fan,
causing
> it to
> > > > run backwards. This would cool the compartment so fast,
that
> the
> > > relay
> > > > would shut it off, so I also installed a SPDT switch to
> override the
> > > > thermostat and leave the fan on. I may eventually install
at
> DPDT
> > > > switch to reverse the polarity without having to pull the
wires
> off
> > > > the fan. This setup has worked fine for about 12K miles and
the
> fan
> > > > does not seem to mind running in reverse.
> > > >
> > > > Shane Fedeli
> > > > 85PT40
> > > > Hershey, PA
> > > >
> > > > --- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
> > > > wrote:
> > > > >
> > > > > Several of us have recently posted about the ratteling or
non
> > > working
> > > > > fan that is mounted in the upper rear area of the engine
> > > compartment.
> > > > > Does anyone know the thermostat degree setting for that
fan?
> > > Anyone
> > > > > know where that thermostate is located?
> > > > >
> > > > > My thought at this time is to control the add-in Hayden
fans
> to
> > > run
> > > > > off the same controls.
> > > > > --
> > > > > Curt Sprenger
> > > > > 1987 PT38 8V92 "MacAttack Racing"
> > > > > Anaheim Hills, CA
> > > > >
> > > >
> > >
> >
>
>
>
>
>
>
> ----------------------------------------------------------
----------
>
>
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.476 / Virus Database: 269.11.19/955 - Release Date:
8/15/2007 4:55 PM
>
>
> [Non-text portions of this message have been removed]
>






------------------------------------------------------------------------------


No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.476 / Virus Database: 269.11.19/955 - Release Date: 8/15/2007
4:55 PM


[Non-text portions of this message have been removed]

[Scott Forman]

Looks like this is my culprit. Where can a get a replacement
thermostat?

Scott

--- In WanderlodgeForum@yahoogroups.com, "Howard O. Truitt"
wrote:
>
> Scott,
> Pull the thermostat and check the voltage going to the thermostat.
May need a new thermostat.
> Howard T., Sowega, 86 PT40, 8V92
>
>
> ----- Original Message -----
> From: Scott Forman
> To: WanderlodgeForum@yahoogroups.com
> Sent: Monday, August 20, 2007 12:57 PM
> Subject: [WanderlodgeForum] Re: Thermostate Setting for Failing
Squarrel Fan
>
>
> OK...still fighting this project, need some suggestions.
>
> Everything is mounted and installed, but I cannot get the fan to
> engage from the original thermostat. When I apply a flame to the
> thermostat, I can hear it click and a small voltage begins
flowing to
> the original squirrel-cage wire. The problem, though, is that the
> voltage at that wire is very weak, varying from less than 1 volt
to
> around 5. I cannot identify anything that makes the voltage
change.
> This voltage is not enough to close the relay and turn the fan
on.
>
> Any suggestions as to what is causing the voltage to be low or
how to
> fix it? I guess this may be the reason the original fan quit
working
> in the first place.
>
> Scott
>
> --- In WanderlodgeForum@yahoogroups.com, "Howard O. Truitt"
> wrote:
> >
> > Scott,
> > That would be a safe assumption.
> > Howard T, Sowega, 86 PT40
> >
> > ----- Original Message -----
> > From: Scott Forman
> > To: WanderlodgeForum@yahoogroups.com
> > Sent: Saturday, August 18, 2007 3:36 PM
> > Subject: [WanderlodgeForum] Re: Thermostate Setting for Failing
> Squarrel Fan
> >
> >
> > There are two wires going to my original fan, green & yellow.
Is
> it
> > safe to assume green is ground and yellow is hot?
> >
> > Thanks
> > Scott
> >
> > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@>
> > wrote:
> > >
> > > Scott,
> > > Use the 12V + wire going to the squirrel cage fan as
> a "trigger"
> > for
> > > a Bosch style relay. You will want to supply the main voltage
> to the
> > > fan directly from a 12V source in your charger/Rediline
> compartment.
> > > The fan will draw better than 12 amps, which would burn out
the
> > > thermostat contacts over time if you don't use the relay. Be
> sure to
> > > also use 10 or 12 ga. wire for the fan. The trigger wire from
> the
> > > squirrel cage can be lighter size since it does not carry
much
> of a
> > load.
> > > I located the Bosch relay in the charger compartment and ran
the
> > > wires from the squirrel cage and to the fan through a 1/2"
hole
> in
> > the
> > > compartment wall. Make sure to use a grommet to prevent
chafing
> and
> > > try to enclose all of the wires in wire loom or some sort of
> > conduit.
> > > If you are not familiar with how to wire the relay, this is a
> great
> > > project for learning- there are numerous links floating
around
> the
> > web
> > > with instructions. Also be sure to install a 20 A fuse
between
> the
> > 12V
> > > source and the relay.
> > >
> > > Shane Fedeli
> > > 85PT40
> > > Hershey, PA
> > >
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "Scott Forman"
> <sforman@>
> > > wrote:
> > > >
> > > > Can someone explain how to run the wires for this set up?
> > > >
> > > > Scott Forman
> > > > 86 PT38
> > > > Memphis
> > > >
> > > > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3"
> <sfedeli3@>
> > > > wrote:
> > > > >
> > > > > Hi Curt,
> > > > >
> > > > > My thermostat is mounted in the ceiling of the engine
> > compartment
> > > > > just above the alternator on my 6V92. It is about the
size
> of a
> > > > small
> > > > > bottle cap. I used it, in conjuction with a bosch relay,
to
> > power a
> > > > > Hayden fan that cools the engine compartment. I used the
> > largest fan
> > > > > that I could find at Advanced Auto parts and mounted the
> fan
> > behind
> > > > > the grill that provides access to the curbside of the
> engine
> > > > compartment.
> > > > > Originally, I had set my fan to expel the hot air and
work
> in
> > > > > tandem with the large engine fan to pass air through the
> > > > compartment.
> > > > > Once parked, however, I have achieved better results by
> drawing
> > > > cool,
> > > > > outside air into the engine compartment, expelling it
> through
> > the
> > > > > radiator. I usually just reverse the wires on the fan,
> causing
> > it to
> > > > > run backwards. This would cool the compartment so fast,
> that
> > the
> > > > relay
> > > > > would shut it off, so I also installed a SPDT switch to
> > override the
> > > > > thermostat and leave the fan on. I may eventually install
> at
> > DPDT
> > > > > switch to reverse the polarity without having to pull the
> wires
> > off
> > > > > the fan. This setup has worked fine for about 12K miles
and
> the
> > fan
> > > > > does not seem to mind running in reverse.
> > > > >
> > > > > Shane Fedeli
> > > > > 85PT40
> > > > > Hershey, PA
> > > > >
> > > > > --- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
> > > > > wrote:
> > > > > >
> > > > > > Several of us have recently posted about the ratteling
or
> non
> > > > working
> > > > > > fan that is mounted in the upper rear area of the
engine
> > > > compartment.
> > > > > > Does anyone know the thermostat degree setting for that
> fan?
> > > > Anyone
> > > > > > know where that thermostate is located?
> > > > > >
> > > > > > My thought at this time is to control the add-in Hayden
> fans
> > to
> > > > run
> > > > > > off the same controls.
> > > > > > --
> > > > > > Curt Sprenger
> > > > > > 1987 PT38 8V92 "MacAttack Racing"
> > > > > > Anaheim Hills, CA
> > > > > >
> > > > >
> > > >
> > >
> >
> >
> >
> >
> >
> >
> > ----------------------------------------------------------
> ----------
> >
> >
> > No virus found in this incoming message.
> > Checked by AVG Free Edition.
> > Version: 7.5.476 / Virus Database: 269.11.19/955 - Release
Date:
> 8/15/2007 4:55 PM
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
>
>
>
> --------------------------------------------------------------------
----------
>
>
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.476 / Virus Database: 269.11.19/955 - Release Date:
8/15/2007 4:55 PM
>
>
> [Non-text portions of this message have been removed]
>

[Howard O. Truitt]

Scott,
Did you have power to the thermostat.
Try Napa or Grainger for new thermostat.
Howard T.

----- Original Message -----
From: Scott Forman
To: WanderlodgeForum@yahoogroups.com
Sent: Tuesday, August 21, 2007 7:19 PM
Subject: [WanderlodgeForum] Re: Thermostate Setting for Failing Squarrel Fan


Looks like this is my culprit. Where can a get a replacement
thermostat?

Scott

--- In WanderlodgeForum@yahoogroups.com, "Howard O. Truitt"
wrote:
>
> Scott,
> Pull the thermostat and check the voltage going to the thermostat.
May need a new thermostat.
> Howard T., Sowega, 86 PT40, 8V92
>
>
> ----- Original Message -----
> From: Scott Forman
> To: WanderlodgeForum@yahoogroups.com
> Sent: Monday, August 20, 2007 12:57 PM
> Subject: [WanderlodgeForum] Re: Thermostate Setting for Failing
Squarrel Fan
>
>
> OK...still fighting this project, need some suggestions.
>
> Everything is mounted and installed, but I cannot get the fan to
> engage from the original thermostat. When I apply a flame to the
> thermostat, I can hear it click and a small voltage begins
flowing to
> the original squirrel-cage wire. The problem, though, is that the
> voltage at that wire is very weak, varying from less than 1 volt
to
> around 5. I cannot identify anything that makes the voltage
change.
> This voltage is not enough to close the relay and turn the fan
on.
>
> Any suggestions as to what is causing the voltage to be low or
how to
> fix it? I guess this may be the reason the original fan quit
working
> in the first place.
>
> Scott
>
> --- In WanderlodgeForum@yahoogroups.com, "Howard O. Truitt"
> wrote:
> >
> > Scott,
> > That would be a safe assumption.
> > Howard T, Sowega, 86 PT40
> >
> > ----- Original Message -----
> > From: Scott Forman
> > To: WanderlodgeForum@yahoogroups.com
> > Sent: Saturday, August 18, 2007 3:36 PM
> > Subject: [WanderlodgeForum] Re: Thermostate Setting for Failing
> Squarrel Fan
> >
> >
> > There are two wires going to my original fan, green & yellow.
Is
> it
> > safe to assume green is ground and yellow is hot?
> >
> > Thanks
> > Scott
> >
> > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@>
> > wrote:
> > >
> > > Scott,
> > > Use the 12V + wire going to the squirrel cage fan as
> a "trigger"
> > for
> > > a Bosch style relay. You will want to supply the main voltage
> to the
> > > fan directly from a 12V source in your charger/Rediline
> compartment.
> > > The fan will draw better than 12 amps, which would burn out
the
> > > thermostat contacts over time if you don't use the relay. Be
> sure to
> > > also use 10 or 12 ga. wire for the fan. The trigger wire from
> the
> > > squirrel cage can be lighter size since it does not carry
much
> of a
> > load.
> > > I located the Bosch relay in the charger compartment and ran
the
> > > wires from the squirrel cage and to the fan through a 1/2"
hole
> in
> > the
> > > compartment wall. Make sure to use a grommet to prevent
chafing
> and
> > > try to enclose all of the wires in wire loom or some sort of
> > conduit.
> > > If you are not familiar with how to wire the relay, this is a
> great
> > > project for learning- there are numerous links floating
around
> the
> > web
> > > with instructions. Also be sure to install a 20 A fuse
between
> the
> > 12V
> > > source and the relay.
> > >
> > > Shane Fedeli
> > > 85PT40
> > > Hershey, PA
> > >
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "Scott Forman"
> <sforman@>
> > > wrote:
> > > >
> > > > Can someone explain how to run the wires for this set up?
> > > >
> > > > Scott Forman
> > > > 86 PT38
> > > > Memphis
> > > >
> > > > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3"
> <sfedeli3@>
> > > > wrote:
> > > > >
> > > > > Hi Curt,
> > > > >
> > > > > My thermostat is mounted in the ceiling of the engine
> > compartment
> > > > > just above the alternator on my 6V92. It is about the
size
> of a
> > > > small
> > > > > bottle cap. I used it, in conjuction with a bosch relay,
to
> > power a
> > > > > Hayden fan that cools the engine compartment. I used the
> > largest fan
> > > > > that I could find at Advanced Auto parts and mounted the
> fan
> > behind
> > > > > the grill that provides access to the curbside of the
> engine
> > > > compartment.
> > > > > Originally, I had set my fan to expel the hot air and
work
> in
> > > > > tandem with the large engine fan to pass air through the
> > > > compartment.
> > > > > Once parked, however, I have achieved better results by
> drawing
> > > > cool,
> > > > > outside air into the engine compartment, expelling it
> through
> > the
> > > > > radiator. I usually just reverse the wires on the fan,
> causing
> > it to
> > > > > run backwards. This would cool the compartment so fast,
> that
> > the
> > > > relay
> > > > > would shut it off, so I also installed a SPDT switch to
> > override the
> > > > > thermostat and leave the fan on. I may eventually install
> at
> > DPDT
> > > > > switch to reverse the polarity without having to pull the
> wires
> > off
> > > > > the fan. This setup has worked fine for about 12K miles
and
> the
> > fan
> > > > > does not seem to mind running in reverse.
> > > > >
> > > > > Shane Fedeli
> > > > > 85PT40
> > > > > Hershey, PA
> > > > >
> > > > > --- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
> > > > > wrote:
> > > > > >
> > > > > > Several of us have recently posted about the ratteling
or
> non
> > > > working
> > > > > > fan that is mounted in the upper rear area of the
engine
> > > > compartment.
> > > > > > Does anyone know the thermostat degree setting for that
> fan?
> > > > Anyone
> > > > > > know where that thermostate is located?
> > > > > >
> > > > > > My thought at this time is to control the add-in Hayden
> fans
> > to
> > > > run
> > > > > > off the same controls.
> > > > > > --
> > > > > > Curt Sprenger
> > > > > > 1987 PT38 8V92 "MacAttack Racing"
> > > > > > Anaheim Hills, CA
> > > > > >
> > > > >
> > > >
> > >
> >
> >
> >
> >
> >
> >
> > ----------------------------------------------------------
> ----------
> >
> >
> > No virus found in this incoming message.
> > Checked by AVG Free Edition.
> > Version: 7.5.476 / Virus Database: 269.11.19/955 - Release
Date:
> 8/15/2007 4:55 PM
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
>
>
>
> ----------------------------------------------------------
----------
>
>
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.476 / Virus Database: 269.11.19/955 - Release Date:
8/15/2007 4:55 PM
>
>
> [Non-text portions of this message have been removed]
>






------------------------------------------------------------------------------


No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.476 / Virus Database: 269.11.19/955 - Release Date: 8/15/2007
4:55 PM


[Non-text portions of this message have been removed]