[Es2] Rear Main Seal install

n-engelbert@terrans.net n-engelbert at terrans.net
Fri Sep 9 16:37:26 EDT 2005

Got my donor engine back from the machinist a month or so ago, and I just
started reassembly last night.  My question is:

What orientation should the rear main seal be installed in?

There is a flat on one surface, and on the other side it's cupped with a
spring around the ID of the rubber crank sealing surface.  I'm thinking
that the flat should go to the outside of the engine, but I want to be
sure before I proceed.

The bentley is unclear about this, and the family album drawing isn't too
clear either.


Nathan Engelbert
83 UrQ DA900453
89 90q
91 200q20v donor
91 200q20v avant

More information about the Es2 mailing list