As I recall, when I put in the new bearings in 2008 this tube was partially
blocked or maybe completely blocked with silicone sealant. We had some
leakage but not a great deal as I recall. I am still of the opinion that
the scroll seal will work properly IF: 1) The seal housing is centered on
the main journal using a mandrel, and; 2) The felt is pounded in using a
punch that fits the trapezoidal opening. (That has been Kas's
recommendation.) I've done this 3 times now and have not had any leaks from
the rear main. We just fired up the engine after our bearing failure and
crank regrind from last Fall and again no leaks from the rear main.
Tim
-----Original Message-----
From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
Behalf Of n197tr4@cs.com
Sent: Wednesday, April 21, 2010 9:25 PM
To: fot@autox.team.net
Subject: [Fot] OILY AMBRO.....Progress. Damaged and Blocked Return Tube at
rear bearing block.
This morning I pulled the engine. First time since final assembly last
year.
Cool! Never removed tilt forward body or radiator...
Engine came out easily from the side...of course everything is easy to get
to.
Oil Leak: Return tube on bearing block had been upset slightly and a small
piece of contamination completed the blockage. I am pretty sure this is the
cause of the leak.
If I reassemble and it still leaks, I may keep it to myself......:-)
If it was the tube that was blocked, this situation was certainly self
inflicted. First time in forty years. Never have checked this tube before,
which causes me to think the scroll seal is blamed unfairly once again, in
other cars.
I took a small drill and bored it out. It is slightly oversized now...which
is
likely a good thing.
Put this on your check list if you have not already..... and thanks for all
of
the support.
Joe A....
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