Re: IML: Rear Main Oil Seal on a 1966 Imperial

[PAUL WENTINK <randalpark@xxxxxxx>]

How much oil are you losing?

Maybe a drip pan and a small amount of cat litter can resolve it 
temporarily. Eventually, you will need a rebuild. I am holding back on 
these right now. My baby/car sitting, doing a project/repair here and 
there, and my preservation efforts are all I can handle these days. As 
long as they run, look good, and get proper maintenance, I am trying to 
live with the more overwhelming problems. Its hard to justify spending 
thousands of dollars on a car that is seldom used, unless you see car 
show trophies in your future. The car can be reliable even with a 
manageable oil leak, just keep close watch on the dipstick.

Good luck!

Paul W.


-----Original Message-----
From: tcufroggie86c@xxxxxxxxxxxx
To: mailing-list@xxxxxxxxxxxxxxxx
Sent: Sat, 8 Mar 2008 12:18 am
Subject: IML: Rear Main Oil Seal on a 1966 Imperial


All,
I apologize for the wide distribution. I have perused the archives on 
the OIC site, and on the internet, but have not found the information I 
am seeking.  I have a 66 Imperial Crown Convertible that has a nice 
leak at the rear
main seal.  My mechanic has replaced the seal once, but the problem 
reappeared shortly (4-5 days) after
the seal was replaced.  I have seen on the OIC website that it mentions 
a worn crankshaft can
contribute to the leak at the rear main seal.  My mechanic has stated 
this as a possiblity also and has shown
me where there is some wear in this area on the grooves of the 
crankshaft.  Neither he nor I are particularly enthusiastic about 
replacing a crankshaft, thus it is not my intent to replace it. I can 
live with the leak
instead of performing such an intrusive procedure. 

My question(s) are as follows:

1.  Was the original rear main seal a rope type seal or a smooth type 
of seal for the 66 Imperial?

2.  Is there a "double" or oversized rear main seal available for 
Imperials?  I recall that big block GM cars
had  these oversized type seals to fix this annoying leak.

3.  Any other suggestions on how to fix this issue on the 440 engine in 
a '66 Imperial?

Please feel free to reply to me directly at 
tcufroggie86c@xxxxxxxxxxxxx   Thanks in advance for your help.

Sincerely,
CCC

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