| Re: [GMCnet] Oil sputtering (4K) Onan [message #322376 is a reply to message #322345] |
Sat, 19 August 2017 20:34   |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma:
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Senior Member |
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Peer,
As you may have read in the prior post, I was to have that exact same problem.
I can report a successful cure.
If you wrap the rubber part of the dipstick with several (I do not recall what it took) layers of teflon tape, you can make the plug hold in the tube again. The first time I tried this, I did not clean the rubber stopper off well enough and the tape slipped off. When I wrapped it up after cleaning, the tape has been on there about an hundred hours now.
Before I did that, I got an expandable rubber plug that did work in the place, but it was then a major PITA to check the lube oil level.
There is (or at least I could not locate) a replacement part. The later version use a stick that is attached to a bayonet closed cap. That is what my other BF has, but I have investigating swapping because I do not want to disable that unit.
The next problem you will have (another hundred hours or so) is that the swaging that stops the indicator from going through the plate on top of the rubber stopper will wear off and the stick goes though. This is can be a big issue, but fortunately, I had just changed the oil and KNEW it was not over full. It could have been a disaster if the lube oil level had gotten that low and I did not catch it.
I had lots of plans to repair this when I found it, but not time. So, I put a tight wrap of safety wire on the stick and will engineer a better repair during the winter layup that is all too close now.
Matt - In Paducah with GMCES and GMCGL waiting for the sky to go dark.
Peer Oliver Schmidt wrote on Sat, 19 August 2017 13:36Morning,
my 23' is on its maiden voyage, and after some quad carb (part)rebuilt
the 455 runs much better. However the Onan doesn't like to keep its oil.
Anyone has an idea?
Quote: Oil sputtering out of the cap which doesn't appear to screw on
like the other one and the oil rebreather going into the carb
http://possy.de/onan1.jpg
After two minutes of running, there is a sizable amount of oil on the
tarmac. http://possy.de/onan2.jpg
--
Best regards
Peer Oliver Schmidt
'76a Eleganza II, CA
'73 Sequoia, VA
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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