Subject: RE: Guzziology on Rear Drive Oil Migration
Author: Rob Prins
Date: Jun 1, 2005, 6:03 AM
Post ID: 1718955328
Keith,
The thin paper gasket that goes between the swingarm and reardrive has
cutaways that need to be lined up with the "little slots". A
mis-aligned gasket (rotated 90 degrees) is trouble. A homemade corpene
gasket that does not have theses cutaways is trouble. Overzealous use
of grease on the gasket during installation could also be trouble. At
least I imagine any of those things could be trouble, I don't know for
certain since I would never do anything like that (cough).
I expect pictures from Paul will tell the story better than I can.
Rob
Keith Ruff wrote:
Was just reading Guzziology and stumbled upon something interesting about oil migration. Book reads as follows: "I have 2 clues as to the cause of the problem. One involves the carrier for the pinion bearings, which on all but the earliest big twins has little flat spots on the circumference that are supposed to align with the slots in the rear-drive casting. If you look for them they are quite apparent. Their purpose is to route lubricant forward to the pinion bearings then back to the rear drive.... I have once been handed just the rear drive from a bike that was experiencing fluid migration just since that rear drive had been installed by the customer. I found that the pinion carrier was installed incorrectly-the little slots weren't in alignment. After that problem was rectified the bike suffered no further problems with lubricant migration." Now, I'm not sure what all of this stuff is as I have never been inside the swing arm/rear drive, but I wonder if that is what the problem is with my Ambo? The previous owner removed all of the rear drive sidecar gearing and re-installed the original gears. Perhaps he did not align these slots on the pinion carrier? Keith Ruff 70 Cafe Racer Ambo Manahawkin, NJ |