| [GMCnet] Accessing Old Style Onan Points and Governor Question [message #88064] |
Fri, 11 June 2010 11:57  |
Alan LaVoisne
Messages: 51
Registered: September 2009
Location: Ortonville, MI
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Hi GMC'ers,
I have been having great fun trying to get my Onan tuned up. At first it
would not start (coach sat for 10 years at least mostly indoors). We took
the fuel pump and fuel solenoid apart and cleaned them up real good. The
little check valve in the fuel pump was stuck. The thing is pumping fuel
like a tanker truck now. It was pumping so well, I found a leak in the fuel
line from the pump to the carb. A new line fixed that. It was running
fairly well at idle but not very well under load. We cleaned the carburetor
and had running pretty well under load for about 4 hours then it would start
to hunt every once in a while. Once I get it running again (lost spark, see
below), I am going to try to lesson the sensitivity on the governor and see
what happens. It is at the most sensitive setting right now.
The spark plugs and the points were all sooted up. So we cleaned them up
and lost spark. I am considering going to solid state ignition from Jim K,
but I think we are going to give a little more effort into getting the
points working again. We used a point file on them and got a inconsistent
spark back. So I am thinking we can do some work on cleaning and see what
happens. The problem is I have the old style points so it is very hard to
get in there to see, so we can clean the points and set the gap. Is there
any trick to this or is it pretty much get in there and do it?
Also, right now the governor has the carb set at full throttle. I read in
the book that the engine starts in this setting, but I have never noticed
this before. Is this correct? I assume once the engine starts, the
governor will back off the throttle?
Thanks all. You are a great help.
Alan LaVoisne
75 Glenbrook
Ortonville, MI
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1975 26' Glenbrook
Mostly Original
Ortonville, MI
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