Kohler generator overheating

[Scott Forman]

This is not a squirrel cage. The pre-87 units are old-fashioned fan
units.

Scott

--- In WanderlodgeForum@yahoogroups.com, Leroy Eckert
wrote:
>
> If you look closely, there is an arrow on the squirrel cage housing
showing direction. At least there is on mine. The motor on mine is
208v. I have a typical wiring diagram from the box to the fan motor
if anyone needs it.
> Leroy Eckert
> 1990 WB-40 Smoke N Mirrors
> Dahlonega, GA
> Royale Conversion
>
> --- On Thu, 8/14/08, Bryan Altier wrote:
> From: Bryan Altier
> Subject: Re: [WanderlodgeForum] Re: Kohler generator overheating
> To: WanderlodgeForum@yahoogroups.com
> Date: Thursday, August 14, 2008, 9:05 PM
>
>
>
>
>
>
>
>
>
>
>
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>
>
> Greg,
> Looking at the motor at the end of the fan, mine
> had two wires coming out of the winding and wrapped up before going
back into
> the winding. I removed the wrapping and found that there were two
> connectors that I swapped causing the motor to run in the proper
> direction. Look and see if there is a sticker on the end of the
fan
> housing with an arrow "direction". Since I got mine blowing out
the bottom
> of the fan my overheating problems are apparently gone.
>
> Bryan Altier
> 88 WLWB 40
> Greenville, SC
>
> ----- Original Message -----
> From:
> Greg Young
> To: WanderlodgeForum@ yahoogroups. com
>
> Sent: Thursday, August 14, 2008 7:36
> PM
> Subject: Re: [WanderlodgeForum] Re:
> Kohler generator overheating
>
>
>
>
>
> Hi Bryan & Scott and everybody
>
> Follow up to our generator
> issues. I had the radiator serviced and it was only 20% blocked,
so the
> guess is that was not the problem. However, I was wrong about
the
> fan. Ours appeared to be sucking air in rather than blowing
out.
> There is a junction box leading to the fan motor, which was wired
normally -
> Hot (black) to black, neutral (white) to white. I reversed these
and the
> motor continues to suck in. So how does one reverse the wiring
and
> actually make it change direction?
>
> I'm also a little baffled about oil
> levels and think we may have a plug somewhere - the dipstick
showed oil level
> above max, yet when I opened the plug, with the filter off and
the oil filler
> cap off, no oil came out. Putting in more resulted in oil
spilling out
> the breather hose.
>
> Sorry, I'm not a gearhead like so many of you, but I
> can follow instructions if they're detailed enough...
>
> Thanks!
> Greg
> Young
> 1986 PT40
> Escondido, CA
> (760) 807-1727
>
>
>
> -----
> Original Message ----
> From: Greg Young
> To:
> WanderlodgeForum@ yahoogroups. com
> Sent: Thursday, August 7, 2008
> 7:17:51 PM
> Subject: Re: [WanderlodgeForum] Re: Kohler generator
> overheating
>
>
>
> Hi Scott - Thanks for the info. We have the standard vertical,
so I
> think the fan's OK. Time to flush, and if that doesn't improve
it, I'll
> probably take it in for "professional" (i.e. expensive)
> assessment.
>
> Greg Young
> 1986 PT40
> Escondido CA
>
>
>
> -----
> Original Message ----
> From: Scott Forman
> <scottforman75@ gmail.com>
> To:
> WanderlodgeForum@ yahoogroups. com
> Sent: Thursday, August 7, 2008
> 5:54:06 PM
> Subject: [WanderlodgeForum] Re: Kohler generator
> overheating
>
>
>
> Greg,
>
> If you bus has the stock vertical radiator with traditional
> fan, it
> should blow out...or at least that is what mine does.
>
>
> Later models...and some retro-fitted earlier ones...have a
horizontal
>
> radiator with squirrel's cage fan blowing down and out.
>
> I ran my
> Yanmar this past weekend at heavy load in 104 degree heat
> and it never
> went above 180.
>
> Scott Forman
> 86 PT38
> Memphis
>
> --- In WanderlodgeForum@
> yahoogroups. com, Greg Young
> wrote:
> >
> >
> Hi Bryan - Thanks for the idea. Which way is it supposed to turn -

>
> exhausting air through the radiator, or pulling it in? I would
think
>
> out, which is what ours is doing.
> > -Greg
> > 86 PT40
> >
>
> >
> >
> > ----- Original Message ----
> > From: Bryan
> Altier
> > To: WanderlodgeForum@
> yahoogroups. com
> > Sent: Thursday, August 7, 2008 3:45:08 PM
> >
> Subject: Re: [WanderlodgeForum] Kohler generator overheating
> >
> >
>
> > Greg, We had some problems with ours overheating
> > just at
> times, (hot weather) and I discovered that the cooling fan
> on the
> >
> radiator was turning backwards. Reversed two wires and problem
> >
> solved.
> >
> > Bryan Altier
> > 88WLWB 40
> > Greenville,
> SC
> > ----- Original Message -----
> > From: Greg Young
> > To:
> Wanderlodge Forum
> > Sent: Thursday, August 07, 2008 4:09 PM
> >
> Subject: [WanderlodgeForum] Kohler generator overheating
> >
> > Hi
> -
> >
> > Our Kohler generator is overheating under load. So far I've
>
> replaced the thermostat, and so I guess that flushing the system is
>
> the next step.
> >
> > Details:
> > 86 PT-40
> > Kohler
> 12.5CCO67-RV
> > Yanmar 4-cyl engine
> > with no load ran cool.
> Started adding load at around 180 degrees
> > Added load up to 20A leg
> one, 30A leg two - all three cruise-air
> AC's running plus some other
> appliances. Maintained about 115V all
> the time.
> > Temp slowly
> climbed up to about 215 before I took the load off. In
> the past it
> actually tripped the high temp switch, but I didn't see
> any point in doing
> that again.
> > After I took the load off it slowly dropped to around 200.
> Stopped
> it then.
> >
> > We've got two weeks before we head to
> the desert and 100+ heat.
> Any thoughts would be appreciated.
> >
>
> > Thanks!
> > Greg Young
> > 1986 PT40
> > Escondido,
> CA
> > (760)
> 807-1727
> >
>