[6pack] J-Type Overdrive - Mating the Two Castings

[Ruffner, James A *HS]

Yep, a copper compression washer is widely used for oil seal applications
around studs or bolts were there is oil pressure behind the bolt.  As a rule,
one should always use a new one each time, because once compressed (deformed)
it is much more difficult to get the seal you need.
________________________________________
From: 6pack-bounces+jar7u=hscmail.mcc.virginia.edu at autox.team.net
[6pack-bounces+jar7u=hscmail.mcc.virginia.edu at autox.team.net] On Behalf Of
Foster, Stan [stan.foster at hp.com]
Sent: Friday, August 01, 2008 11:06 PM
To: Corbitt, Michael; 6pack at autox.team.net
Subject: Re: [6pack] J-Type Overdrive - Mating the Two Castings

Mike, I have not examined this particular assembly but copper washers are
typically used when bolts or studs are screwed into oil passages. An example
I
am familiar with is the rear engine oil seal housing that has one copper
washer at the top. My guess is that the two upper studs you reference are
screwed into threaded holes with an oil passage behind and without the copper
washer and probably some additional measures like sealant the joint will leak
more than usual.

Stan

-----Original Message-----
From: 6pack-bounces+stan.foster=hp.com at autox.team.net
[mailto:6pack-bounces+stan.foster=hp.com at autox.team.net] On Behalf Of
Corbitt,
Michael
Sent: Friday, August 01, 2008 10:16 PM
To: 6pack at autox.team.net
Subject: [6pack] J-Type Overdrive - Mating the Two Castings

I have a question about the J-Type overdrive.  When mating the rear and main
castings, why do Nelson's instructions call for copper washers on the two
upper studs?  What's the purpose of the copper washers here?  Why the tow
upper studs and not on all six?  Thanks for any feedback.

Mike
Corvallis, OR
6pack at autox.team.net
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