Point of interest? Decarbonization of heads internally; a good approch is,
set idle high and using a spray mist bottle - spray water into the intake.
The water shatters the carbon sending it out the exhaust. I've used this
technique since the '60's
- -----Original Message-----
From: Dick Kennedy
To: gmcmotorhome
Date: Friday, August 21, 1998 9:08 AM
Subject: Re: GMC: Onan points
>When I recently did mine I didn't have any luck at all in trying to use a
>feeler guage upside down and backward. So I disconnected the points from
the
>coil and used an ohmmeter to find the point where they open. Then with some
>trial and error I managed to get that point lined up with the hole in the
>sheetmetal. I then used a timing light for a sanity check when I was all
done.
>
>I had mine torn down to replace the starter bracket so I decided to
decarbon
>the heads while I was at it. They need it badly and I also found the
cooling
>fins were crudy to the point of restricting air flow, so check yours
>carefully while you"re in there.
>
>When all the sheetmetal is off there are timing marks visible on the end of
>the casting. After much consternation I found that the hole in the
>sheetmetal is the only correct reference and that the cast marks don't
>correlate to the timing marks on the flywheel.
>
>I changed my points just to be complete and the old ones weren't too
burned.
>Can someone jump in here and tell me how often these need to be changed?
>Mark Grady made another post about converting his to solid state. Is this a
>conversion using standard onan parts or is it salvage or aftermarket parts?
>Let us know the details Mark. This may be an upgeade that the gang wants
to
>consider as their points need replaced. Good Tech page project!
>
>FWIW a friend of mine presently has the flywheel off a renault chucked in
>his lathe. He's drilling a series holes for the sensor to convert it to
>solid state. I don't know any of the details but once he's done he's
through
>messing with points. The Onan flywheel is easily accessible enough so even
>flywheel mods are necessary this approach would be within reason.
>
>Dick
>
>
>
>>Any tips on how to set the points on the Onan generator? I know the
>>settings they should be at, but because of the housing it seems that
>>you would have to be a contortionist.
>>Les & Des
>>Living Praise Ministries
>>
>>mailto:lesndes
>>Visit us at: http://www.livingpraise.org
>>
>>
>>
>
set idle high and using a spray mist bottle - spray water into the intake.
The water shatters the carbon sending it out the exhaust. I've used this
technique since the '60's
- -----Original Message-----
From: Dick Kennedy
To: gmcmotorhome
Date: Friday, August 21, 1998 9:08 AM
Subject: Re: GMC: Onan points
>When I recently did mine I didn't have any luck at all in trying to use a
>feeler guage upside down and backward. So I disconnected the points from
the
>coil and used an ohmmeter to find the point where they open. Then with some
>trial and error I managed to get that point lined up with the hole in the
>sheetmetal. I then used a timing light for a sanity check when I was all
done.
>
>I had mine torn down to replace the starter bracket so I decided to
decarbon
>the heads while I was at it. They need it badly and I also found the
cooling
>fins were crudy to the point of restricting air flow, so check yours
>carefully while you"re in there.
>
>When all the sheetmetal is off there are timing marks visible on the end of
>the casting. After much consternation I found that the hole in the
>sheetmetal is the only correct reference and that the cast marks don't
>correlate to the timing marks on the flywheel.
>
>I changed my points just to be complete and the old ones weren't too
burned.
>Can someone jump in here and tell me how often these need to be changed?
>Mark Grady made another post about converting his to solid state. Is this a
>conversion using standard onan parts or is it salvage or aftermarket parts?
>Let us know the details Mark. This may be an upgeade that the gang wants
to
>consider as their points need replaced. Good Tech page project!
>
>FWIW a friend of mine presently has the flywheel off a renault chucked in
>his lathe. He's drilling a series holes for the sensor to convert it to
>solid state. I don't know any of the details but once he's done he's
through
>messing with points. The Onan flywheel is easily accessible enough so even
>flywheel mods are necessary this approach would be within reason.
>
>Dick
>
>
>
>>Any tips on how to set the points on the Onan generator? I know the
>>settings they should be at, but because of the housing it seems that
>>you would have to be a contortionist.
>>Les & Des
>>Living Praise Ministries
>>
>>mailto:lesndes
>>Visit us at: http://www.livingpraise.org
>>
>>
>>
>
