| [GMCnet] Update on final drive and oil leak [message #172377] |
Thu, 07 June 2012 09:48  |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma:
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Senior Member |
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Good Morning
To update everyone, after our 1600 mile round trip this past Memorial Day
weekend the entire bottom of my coach was soaked in oil from the engine back. I
initially thought it was coming from the final drive left shaft seal, but after
doing further analysis the final drive was only 6 oz low on lube, no where near
enough to soak the entire bottom of the coach, plus the fluid on the underside
is a much lighter viscosity than the gear lube in the final drive.
So what would be your thoughts on where to look next ?
1. Transmission to final drive PEE HOLE which is between the 2 seals where the
transmission shaft enters the final?? This is apparently there so if the 1st
seal leaks, trans fluid does not enter the final drive.
2. I have a ragusa trans pan cover and it has a new gasket, this is not where
the leak is.
3. CRAZY THOUGHT....I have the vent fitting on the top of the transmission
with a hose going over to the frame and hanging there. Could the wind passing
over the hose suck out fluid? Seems like a stretch.
I have completely de-greased the underside of my coach with Gunk and a high
pressure washer, this weekend I will take several short runs and then do more
detailed checking to see if I can find where the leak/oil is coming from.
All help or ideas are appreciated.
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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