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Re: [Healeys] Replacing pinion oil seal

To: Mark Schneider <mandmschneider@comcast.net>
Subject: Re: [Healeys] Replacing pinion oil seal
From: Bob Spidell <bspidell@comcast.net>
Date: Wed, 6 May 2009 18:54:58 +0000 (UTC)
Mark, 

You're welcome. Be advised if you have lots of miles (>100K) on your car it's 
probable the pinion bearings have lost their preload; i.e. enough compression 
on the bearings to take up all slop and a smidgen more (measured as a few 
inch-pounds of torque/resistance on the pinon shaft with the axles removed and 
the diff drained of oil). If you have the axles out someday you can test that, 
but it doesn't warrant a teardown if you aren't having any problems. 

Shouldn't be too much trouble to remove the nut, but you'll need the right 
socket, a fairly large breaker bar and a suitable torque wrench to reinstall. 
There should be a large split/lock washer underneath and were originally 
tightened to 150 ft-lbs. Even with the e-brake set the pinion shaft might turn; 
have someone stomp on the brakes when you remove/reinstall the nut. 

Congrats on the work you've accomplished so far ... feels good, doesn't it ;) 


Bob 




Bob, 


Thank you for the advice. This all matches with what I expected. But since this 
is the first time I have ever done this I didn't want to stumble into the 
release of some evil gremlins. I like to avoid those occasions. I am just 
finishing a rebuild on the transmission, overdrive, and drive line, as well as 
replacing the clutch. With this experience as a background I assumed I could 
handle getting this oil seal replacement. With your advice it looks as though 
the real challenge is going to be getting the flange nut off. That little jewel 
has been in place since sometime in December of 1965. 


Marks 3 
1966 BJ8 
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