Should I replace rear main seal on replacement engine (LT1)
Thread Starter
Burning Brakes
Joined: Apr 2009
Posts: 1,185
Likes: 33
From: Charlotte Michigan
Should I replace rear main seal on replacement engine (LT1)
Will be replacing my engine in my '93 with another stock engine that has 32-33,000 miles. Should I replace rear and possibly front seals while it is out because of the age and possibllity of them being dried out? Thamks.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 413
From: WV
It's a smart move to replace the rear main seal anytime you have the chance...The front seals you can get to with the engine in the car , the rear you either get when the trans is out, or it's major work if it leaks.. I don't know if Felpro has addressed there rear main gasket problems they were having, but for awhile the seals they were producing leaked after a short while , Pete K warned me about this a while back because he was having leaks from the Felpro rear main gaskets he was putting in his engines.... Another seal to replace is the front seal on an Automatic Transmission, it only takes a few minites but can save a lot of grief later on...
...WW
...WW
Last edited by WW7; Apr 8, 2014 at 05:47 PM.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 413
From: WV
Here is a discussion I found real quick about the troubles they were having with the Felpro rear main seals....
http://www.speedtalk.com/forum/viewt...hp?f=1&t=31154
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Last edited by WW7; Apr 8, 2014 at 06:16 PM.
Thread Starter
Burning Brakes
Joined: Apr 2009
Posts: 1,185
Likes: 33
From: Charlotte Michigan
I bought a complete set to do the current engine and since I am not rebuilding it at this time I could the seals out of that felpro kit. I would have o check to see which kit I have but I know I got it in august- November 2012 from local engine rebuilder for short track small block Chevy's. I'll also check to see if he had a problem. So maybe I should consider something other than the felpro. Thank WW7 for the website concerning the issue. Yes, I will do both seals rather than having a problem with them after engine installation. I still have a clutch situation to deal with when I get the old engine out as the flywheel did not come with the engine I bought. I did see some good read on balancing flywheel yesterday here on the forum that will be very helpful. Thanks.
