Pim---A few things to check when/if doing this chore again...Take a look at the
area where these seals do their work. For them to seal properly, the mating
areas need to be free of the grooves that can wear in where the seal lips make
contact. Sometimes the seal can be moved up or down the shaft a 1/16" or so to
expose a new area.
The bearings also need to be in good shape to keep these shafts from "moving
away" from the points of seal contact. (Same goes for crankshaft seals).
There can be some marginal benefit from shortening the spring contained in some
of these seals. This can be done by cutting the spring a half inch or so, then
twisting the spring back together. Supposedly giving a better clamp to the
shaft.
Rarely, but possible, the case vent can get plugged. Check out this small hole
to be sure no pressure can build up inside. You should see a small cotter pin
in this vent hole at the top of the case.
Finally, I don't know the extent of the leaks you are finding. Know it's very
difficult to keep these units totally leak-free, esp. at the pinion
shaft/flange.
One other solution is to go to the Infiniti limited $lip differential. Never
heard of one of these leaking!
Dick
-----Original Message-----
From: Pim Alferink
Sent: Friday, November 26, 2010 11:28 AM
To: 6pack@autox.team.net
Subject: [6pack] diff seals
Dear listers,
While prepping the car for a new paint job, I noticed that one of my diff
seals is leaking......again.
In the 14 years that I have the car (doing about 5000 miles/year) this must
be the 3rd time I have to change the seals.
Does anyone know of a higher quality drop in replacement seal? Or is this
just bad luck?
Pim Pimento '73
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