Hi group,
Well, just got done with the last (for now)repairs on Whirlybird.
Replaced the air compressor (500cfm)with a 700cfm. Repaced the air governor with
a new one.
Replaced the air protection valves. Interesting. Got 2 new ones from Ryder
Truck. One swapout, no problem. Replaced the second one and the problems
started. Seems the old one has a set screw on the bottom that adjusts the
pressure on the tag air bag. The new one didn't. Put the new one in and watched
the air bag gauge almost go to 150 lbs!
Couldn't figure out the problem for about an hour. Looked at the old one and saw
the difference. Took the old one apart and saw the diaphram was in excellent
shape, so put it back in the system. Pressure dropped to 35psi, like it should
be.
My bird only has two protection valves in the back on it. I am assuming the
PT40's have a third one in the front.
Valves only cost 25 bucks each so not to bad.
Air compressor was $550.
Still have a slow leak on the dash gauge "Air Pressure Front". Squirted soap
over everything and can't find it. Hummm...
Also replaced the fan on gen set with an electric one ($33). Noise dropped to
the 85 db from 95-98db. So better.
Also had a shaking of gen set and smoke.
Had had the injectors replaced before we left Seattle, helped a little, but not
to much.
Turns out the injection pump needed to be moved a little.
Here's how....3 nuts holding injector pump on, take them off and loosen any fuel
lines going to pump. Use a pry bar to move pump out or in as needed. In my case,
had to move it in about an inch.
Make sure you tighten the bolts before starting the engine. Fuel will leak into
the oil if you don't.
Smoke went away and motor doesn't vibrate anymore.
Easy fix, took about 15 min. to do.
Gotta take a break, now.
Bob Lawrence
84 PT36
Mathis, Texas (Soon on the way to Houston)
Bob,
You are too busy...
Do you know what the HZ reading is on the Gen. powered AC Legs? Our coach has the Power Management System, and the digital display sometimes shows HZ higher than 60 HZ.ÃÂ Under more load the HZ drops to 60.
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA
Read all about Southwest Bluebirds and Friends (SWBB) at http://www.SOUTHWEST-BLUEBIRDS.ORG ...Then Join us.
"Host of the Annual Bluebird Quartzsite Rally"
On Sun, Apr 26, 2009 at 4:18 PM, Bob Lawrence
<"bobandarlene@earthlink.net"> wrote:
Hi group,
Well, just got done with the last (for now)repairs on Whirlybird.
Replaced the air compressor (500cfm)with a 700cfm. Repaced the air governor with a new one.
Replaced the air protection valves. Interesting. Got 2 new ones from Ryder Truck. One swapout, no problem. Replaced the second one and the problems started. Seems the old one has a set screw on the bottom that adjusts the pressure on the tag air bag. The new one didn't. Put the new one in and watched the air bag gauge almost go to 150 lbs!
Couldn't figure out the problem for about an hour. Looked at the old one and saw the difference. Took the old one apart and saw the diaphram was in excellent shape, so put it back in the system. Pressure dropped to 35psi, like it should be.
My bird only has two protection valves in the back on it. I am assuming the PT40's have a third one in the front.
Valves only cost 25 bucks each so not to bad.
Air compressor was $550.
Still have a slow leak on the dash gauge "Air Pressure Front". Squirted soap over everything and can't find it. Hummm...
Also replaced the fan on gen set with an electric one ($33). Noise dropped to the 85 db from 95-98db. So better.
Also had a shaking of gen set and smoke.
Had had the injectors replaced before we left Seattle, helped a little, but not to much.
Turns out the injection pump needed to be moved a little.
Here's how....3 nuts holding injector pump on, take them off and loosen any fuel lines going to pump. Use a pry bar to move pump out or in as needed. In my case, had to move it in about an inch.
Make sure you tighten the bolts before starting the engine. Fuel will leak into the oil if you don't.
Smoke went away and motor doesn't vibrate anymore.
Easy fix, took about 15 min. to do.
Gotta take a break, now.
Bob Lawrence
84 PT36
Mathis, Texas (Soon on the way to Houston)
It's normal for the Hz to move around a bit as power output of the generator changes. Plus or minus 10% wouldn't be alarming. It might affect motors (but usually the motors draw enough power bring the Hz back to within 2 or 3% of 60) and it definitely affects timing circuits. Expect the AC digital clocks to run fast or slow depending on what side of 60 Hz you're running.
In high school, I was a member of the engineering club that had built a scoreboard for the football field -- but it was too far from the grid, so we also ran a generator to power it. (This was in the early 60s.) It's been way too long, so I don't recall what brand generator or its size but it was an old "surplus" model ... it was mounted on a small trailer and had an air-cooled 2 cyl engine. It was a bear to start with a pull-cord (but we were young).
After several games using their traditional stop-clocks to check against the scoreboard, the timekeepers started using the scoreboard clock for the official time (using a wired remote to start/stop the clock). That's when we discovered we could speed up or slow down the clock with the Hz -- when our team was ahead, we'd speed it up and when the team was behind, we'd slow it down. We could operate the clock by plus or minus 5% or so... because of time outs, etc. nobody ever got wise to what we were doing. After two years, they put in lights for night games, and then wired the scoreboard to the grid, and we were out of the time manipulation business...
Pete Masterson'95 Blue Bird Wanderlodge WBDA 42
El Sobrante CA
"aeonix1@mac.com"
On Apr 26, 2009, at 5:34 PM, Curt Sprenger wrote:
Bob,
You are too busy...
Do you know what the HZ reading is on the Gen. powered AC Legs? Our coach has the Power Management System, and the digital display sometimes shows HZ higher than 60 HZ. Under more load the HZ drops to 60.
Hi Curt,
The load should be 63hz with no load, dropping to 60hz with a load on it.
I use a Good Governor that I got at CW. I use it whenever the genset is running
to check voltage and Hertz.
Also keep one in the outside compartment and check any park's pedestal before I
plug in my SurgeProtector unit. It can't tell me hz's. Can't afford to lose any
electronics.
Forgot to add last post, when I put in the new air compressor, also added a new
alternator. The old one was only 130 amp. The new one is 160.
Time for a beer.
Wind here in Mathis is gusting to 40 mph. Can't put the dish up and watch "The
Unit", my favorite show...bummer.
Bob Lawrence
84 PT36
Mathis, Texas
> You are too busy...
>
> Do you know what the HZ reading is on the Gen. powered AC Legs? Our coach
> has the Power Management System, and the digital display sometimes shows HZ
> higher than 60 HZ. Under more load the HZ drops to 60.
>
> Curt Sprenger
> 1987 PT38 8V92 "MacAttack Racing"
> Anaheim Hills, CA
> *Read all about Southwest Bluebirds and Friends (SWBB) at
>
http://www.SOUTHWEST-BLUEBIRDS.ORG ...Then Join us.
> "Host of the Annual Bluebird Quartzsite Rally" *
>
>
>
> On Sun, Apr 26, 2009 at 4:18 PM, Bob Lawrence
wrote:
>
> >
> >
> > Hi group,
> > Well, just got done with the last (for now)repairs on Whirlybird.
> > Replaced the air compressor (500cfm)with a 700cfm. Repaced the air governor
> > with a new one.
> > Replaced the air protection valves. Interesting. Got 2 new ones from Ryder
> > Truck. One swapout, no problem. Replaced the second one and the problems
> > started. Seems the old one has a set screw on the bottom that adjusts the
> > pressure on the tag air bag. The new one didn't. Put the new one in and
> > watched the air bag gauge almost go to 150 lbs!
> > Couldn't figure out the problem for about an hour. Looked at the old one
> > and saw the difference. Took the old one apart and saw the diaphram was in
> > excellent shape, so put it back in the system. Pressure dropped to 35psi,
> > like it should be.
> > My bird only has two protection valves in the back on it. I am assuming the
> > PT40's have a third one in the front.
> > Valves only cost 25 bucks each so not to bad.
> > Air compressor was $550.
> > Still have a slow leak on the dash gauge "Air Pressure Front". Squirted
> > soap over everything and can't find it. Hummm...
> > Also replaced the fan on gen set with an electric one ($33). Noise dropped
> > to the 85 db from 95-98db. So better.
> > Also had a shaking of gen set and smoke.
> > Had had the injectors replaced before we left Seattle, helped a little, but
> > not to much.
> > Turns out the injection pump needed to be moved a little.
> > Here's how....3 nuts holding injector pump on, take them off and loosen any
> > fuel lines going to pump. Use a pry bar to move pump out or in as needed. In
> > my case, had to move it in about an inch.
> > Make sure you tighten the bolts before starting the engine. Fuel will leak
> > into the oil if you don't.
> > Smoke went away and motor doesn't vibrate anymore.
> > Easy fix, took about 15 min. to do.
> > Gotta take a break, now.
> >
> > Bob Lawrence
> > 84 PT36
> > Mathis, Texas (Soon on the way to Houston)
> >
> >
> >
>
You mean it's actually growing there? No rain since last August here in Mathis.
Farmers and Ranchers living off the insurance they take out in advance in case
of no rain.
Bob Lawrence
94 PT36
Dry Mathis, Texas (With heavy wind)
>
> Bob, you have been busy. All I have been doing is watching the grass grow.
>
>
> Ernie Ekberg
> 83PT40
> Wanderlodge
> Weatherford, Tx
>
http://autos.groups.yahoo.com/group/erni...gandrepair
>
> --- On Sun, 4/26/09, Bob Lawrence
wrote:
>
> From: Bob Lawrence
> Subject: [WanderlodgeForum] More replacing on bus
> To: WanderlodgeForum@yahoogroups.com
> Date: Sunday, April 26, 2009, 6:18 PM
>
>
>
>
>
>
>
>
> Hi group,
> Well, just got done with the last (for now)repairs on Whirlybird.
> Replaced the air compressor (500cfm)with a 700cfm. Repaced the air governor
with a new one.
> Replaced the air protection valves. Interesting. Got 2 new ones from Ryder
Truck. One swapout, no problem. Replaced the second one and the problems
started. Seems the old one has a set screw on the bottom that adjusts the
pressure on the tag air bag. The new one didn't. Put the new one in and watched
the air bag gauge almost go to 150 lbs!
> Couldn't figure out the problem for about an hour. Looked at the old one and
saw the difference. Took the old one apart and saw the diaphram was in excellent
shape, so put it back in the system. Pressure dropped to 35psi, like it should
be.
> My bird only has two protection valves in the back on it. I am assuming the
PT40's have a third one in the front.
> Valves only cost 25 bucks each so not to bad.
> Air compressor was $550.
> Still have a slow leak on the dash gauge "Air Pressure Front". Squirted soap
over everything and can't find it. Hummm...
> Also replaced the fan on gen set with an electric one ($33). Noise dropped to
the 85 db from 95-98db. So better.
> Also had a shaking of gen set and smoke.
> Had had the injectors replaced before we left Seattle, helped a little, but
not to much.
> Turns out the injection pump needed to be moved a little.
> Here's how....3 nuts holding injector pump on, take them off and loosen any
fuel lines going to pump. Use a pry bar to move pump out or in as needed. In my
case, had to move it in about an inch.
> Make sure you tighten the bolts before starting the engine. Fuel will leak
into the oil if you don't.
> Smoke went away and motor doesn't vibrate anymore.
> Easy fix, took about 15 min. to do.
> Gotta take a break, now.
>
> Bob Lawrence
> 84 PT36
> Mathis, Texas (Soon on the way to Houston)
>
What caused the accompressor to go? wonder if there is an ubstruction in the oil
path to/from the crankcase of the compressor ? the compressors crankcase is not
vented so a kink in the line either way will stop the lubeoil .?????????????
Greg
94ptca
--- In
WanderlodgeForum@yahoogroups.com, "Bob Lawrence"
wrote:
>
> Hi group,
> Well, just got done with the last (for now)repairs on Whirlybird.
> Replaced the air compressor (500cfm)with a 700cfm. Repaced the air governor
with a new one.
> Replaced the air protection valves. Interesting. Got 2 new ones from Ryder
Truck. One swapout, no problem. Replaced the second one and the problems
started. Seems the old one has a set screw on the bottom that adjusts the
pressure on the tag air bag. The new one didn't. Put the new one in and watched
the air bag gauge almost go to 150 lbs!
> Couldn't figure out the problem for about an hour. Looked at the old one and
saw the difference. Took the old one apart and saw the diaphram was in excellent
shape, so put it back in the system. Pressure dropped to 35psi, like it should
be.
> My bird only has two protection valves in the back on it. I am assuming the
PT40's have a third one in the front.
> Valves only cost 25 bucks each so not to bad.
> Air compressor was $550.
> Still have a slow leak on the dash gauge "Air Pressure Front". Squirted soap
over everything and can't find it. Hummm...
> Also replaced the fan on gen set with an electric one ($33). Noise dropped to
the 85 db from 95-98db. So better.
> Also had a shaking of gen set and smoke.
> Had had the injectors replaced before we left Seattle, helped a little, but
not to much.
> Turns out the injection pump needed to be moved a little.
> Here's how....3 nuts holding injector pump on, take them off and loosen any
fuel lines going to pump. Use a pry bar to move pump out or in as needed. In my
case, had to move it in about an inch.
> Make sure you tighten the bolts before starting the engine. Fuel will leak
into the oil if you don't.
> Smoke went away and motor doesn't vibrate anymore.
> Easy fix, took about 15 min. to do.
> Gotta take a break, now.
>
> Bob Lawrence
> 84 PT36
> Mathis, Texas (Soon on the way to Houston)
>