Rear main oil seal
- Thread starter turb
- Start date
RMS
I just did mine 10k ago. Some people say switch to the neoprene seal, some say stay with the rope. Neoprene seal has been reported to mar the surface of the output side of the crank when she wears down. The rope seal (factory) just starts pissing out oil when it starts to go. I did go with neoprene because of installation ease. Engine is out of car and I will go back to rope when I am done spending my kids college money.
I know of no "special" or "performance" seals for these engines. I just went to my local special education staffed autoparts store.
I just did mine 10k ago. Some people say switch to the neoprene seal, some say stay with the rope. Neoprene seal has been reported to mar the surface of the output side of the crank when she wears down. The rope seal (factory) just starts pissing out oil when it starts to go. I did go with neoprene because of installation ease. Engine is out of car and I will go back to rope when I am done spending my kids college money.
I know of no "special" or "performance" seals for these engines. I just went to my local special education staffed autoparts store.
This (above) is the procedure I follow(ed) using the neoprene FelPro seal. I blew oil out of the first seal but not out of the second. I added dual VC breathers with the second go-round to vent off some crank case pressure.
Other than the procedure here is a trick based on my problem of a leaking oil pan. Find yourself a cork gasket. Order one from a vendor, Rol makes them as does at least one other gasket maker. Run a tap into each pan bolt hole then spray them out with some cleaner like O2 safe TB cleaner. Be careful of falling cleaner, wrap a towel around the straw. Clean the block and pan rail, then clean it again. Dry fit the pan to make sure you know how to get it in. In my TTA it gets tricky due to space. Other than that I used a minimal amount of RTV on both sides of the gasket and made sure to torqu the pan bolts in an alternating pattern stepping up to the correct spec.
Brent
Other than the procedure here is a trick based on my problem of a leaking oil pan. Find yourself a cork gasket. Order one from a vendor, Rol makes them as does at least one other gasket maker. Run a tap into each pan bolt hole then spray them out with some cleaner like O2 safe TB cleaner. Be careful of falling cleaner, wrap a towel around the straw. Clean the block and pan rail, then clean it again. Dry fit the pan to make sure you know how to get it in. In my TTA it gets tricky due to space. Other than that I used a minimal amount of RTV on both sides of the gasket and made sure to torqu the pan bolts in an alternating pattern stepping up to the correct spec.
Brent
marc86mcss
New Member
- Joined
- Nov 13, 2002
So what is the best rear main seal to use?
Red Regal T
Senior Member
- Joined
- May 24, 2001
I checked out that instuction site. I was waiting for them to go into those seals and pins that slide in the grooves on either side of the cap. Last time I told someone how to do it here on the board, all these experts jumped in with the useless information about the installation of the seals and pins. Whatever floats your boat.
I just squeeze the correct RTV up into those grooves. It's easy, works great, and doesn't leak. No need for those extra parts that come with the neoprene rear seal kit.Red Regal T
Senior Member
- Joined
- May 24, 2001
Thanks Gene.......FELPRO NUMBER I HAVE IS BS40613 AND A VICTOR # IS JV742R. SHOULD COST UNDER $10
Lee Thompson
New Member
- Joined
- May 24, 2001
seal
Bingo!!!!
1-800-869-8711--Enginetech
Part # S1389--rear main seal---2 piece--1975-88--- seal only
1--$4.78
20-$3.11
This is the Sabo seal.
I just ordered 2, so if they won/t sell to you (this is jobber prices), I will forward 1 to you. Maybe I should order 20.
Bingo!!!!
1-800-869-8711--Enginetech
Part # S1389--rear main seal---2 piece--1975-88--- seal only
1--$4.78
20-$3.11
This is the Sabo seal.
I just ordered 2, so if they won/t sell to you (this is jobber prices), I will forward 1 to you. Maybe I should order 20.
Lee Thompson
New Member
- Joined
- May 24, 2001
seal
E-mail me your address. It may be here tomorrow, if not Monday.
Do you go to BG?
E-mail me your address. It may be here tomorrow, if not Monday.
Do you go to BG?
Originally posted by Red Regal T
I checked out that instuction site. I was waiting for them to go into those seals and pins that slide in the grooves on either side of the cap. Last time I told someone how to do it here on the board, all these experts jumped in with the useless information about the installation of the seals and pins. Whatever floats your boat.
Agreed. I did the rear main the past 2 weekends in a row. First round, I used the inserts. (then I read the gnttype article in detail AFTER it was leaking again)
Second round I did not. Finally no leak. Just be SURE the mating surfaces are squeeky clean! 
