Kohler generator overheating

[Scott Forman]

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
>