My 6KW Onan had a tendancy to overheat and shut down
when using the generator for long periods of time (even
with air moving by it like when driving on the highway with
the roof air on)
>
The Onan also used a lot of oil when running hot (so far doesn't
appear to use any oil when running cooler)
>
I bought a small electric fan from the auto wreckers (from in
front of the radiator on a Hyundi mini van with air conditioning
since it had the most compact unit I could find) for $10.00 and
mounted it on the inside of the GMC flip up generator door to
draw air through the ventilation slots.
>
Wired in a relay (used terminal 6 on the control board for trigger
voltage to the relay with fan power coming from the Onan battery)
so that whenever the generator is running so is the fan.
>
The generator runs much cooler now. Although I have not worked
it really hard since I added the fan.
>
With just the stock Onan cooling fan has anyone else experiencing
Onan overheating? Has anyone found any service problems to
cause overheating on the Onan i.e. mixture too lean?
>
Gary Zingle
1973 GMC 26 foot
Enjoying another sunny Alberta day!
>
>>---- Original Message -----
>>
>>Date: Sat, 31 Jul 1999 16:25:31 -0700 (PDT)
>>From: Pete Papas
>>Subject: RE: GMC: Onan Questions --@#%&**^%^
>>
>>-------------- My 4KW Onan BF spec A -- Is having a bit of a rough ti=
me
with all this 100 degree heat here in
>>Daytona Florida. I have been sliding the unit out -- to try to let it
breath more -- but -- under a full
>>A/C load it will start to miss -- then bog down -- most times it will
fully recover -------------------
when using the generator for long periods of time (even
with air moving by it like when driving on the highway with
the roof air on)
>
The Onan also used a lot of oil when running hot (so far doesn't
appear to use any oil when running cooler)
>
I bought a small electric fan from the auto wreckers (from in
front of the radiator on a Hyundi mini van with air conditioning
since it had the most compact unit I could find) for $10.00 and
mounted it on the inside of the GMC flip up generator door to
draw air through the ventilation slots.
>
Wired in a relay (used terminal 6 on the control board for trigger
voltage to the relay with fan power coming from the Onan battery)
so that whenever the generator is running so is the fan.
>
The generator runs much cooler now. Although I have not worked
it really hard since I added the fan.
>
With just the stock Onan cooling fan has anyone else experiencing
Onan overheating? Has anyone found any service problems to
cause overheating on the Onan i.e. mixture too lean?
>
Gary Zingle
1973 GMC 26 foot
Enjoying another sunny Alberta day!
>
>>---- Original Message -----
>>
>>Date: Sat, 31 Jul 1999 16:25:31 -0700 (PDT)
>>From: Pete Papas
>>Subject: RE: GMC: Onan Questions --@#%&**^%^
>>
>>-------------- My 4KW Onan BF spec A -- Is having a bit of a rough ti=
me
with all this 100 degree heat here in
>>Daytona Florida. I have been sliding the unit out -- to try to let it
breath more -- but -- under a full
>>A/C load it will start to miss -- then bog down -- most times it will
fully recover -------------------
