[DeTomaso] DeTomaso Digest, Vol 52, Issue 28- Oil pressure

[JDeRyke at aol.com]

In a message dated 11/28/08 11:03:52 AM, RCBSONS1 at aol.com writes:

> Any one ever put a graphite rear main seal in???... it looks like a rope 
> seal to me.  Pontiac vendor down south states this is all he uses now on his 
> builds.
> 
You're probably right in your guess, Bob. Quite a few rope seals from the 
early '70s were graphite-impregnated. Installation was tricky since you needed to 
'roll' the seal into the gap usually with a hammer-handle or a piece of pipe, 
then trim the excess to length. You cannot overlap the ends as with a 
neoprene seal to prevent leaks, and rope seals have high crank drag for the first 30 
minutes or so of running, but if they haven't sprung a leak by then, they 
settle in and are OK. I wouldn't use one today on a bet... FWIW- J Deryke



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