Kohler generator overheating

[Bryan Altier]

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: "gregy1@yahoo.com"

To: "WanderlodgeForum@yahoogroups.com"

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