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Technical Chevy double lip rear main seal

Discussion in 'The Hokey Ass Message Board' started by colinsmithson, Apr 6, 2014.

  1. colinsmithson
    Joined: Jan 27, 2013
    Posts: 383

    colinsmithson
    Member

    Hi guys been having trouble sealing the rear main on a 350 it has a slight wear mark where the seal runs
    Has anyone used the 2 piece double lip seal and was it good or bad
    Thanks Colin
     
  2. bt34
    Joined: Dec 22, 2006
    Posts: 262

    bt34
    Member

    Used hundreds of them...no problems...a very little dab of silicone on the ends of the seals across to the edge of the main cap to where the sump gasket meets it. Also where the seals sit on the block and cap I used to put a slight smear there as well..
    Just be sure the sump is sealed nicely as well..
    NOW, this bit...could be an ol' wives tale but, but...:rolleyes::confused:
    Keep your fingers out of any siliconed area because of the natural oils in your skin stop the silicone adherering to the block, cap or sump.
    My thoughts only.
     
  3. BOBCRMAN
    Joined: Nov 10, 2005
    Posts: 846

    BOBCRMAN
    Member
    from Holly

    Also an offset rear seal is available for your problem. Has to be ordered but available from Fel-Pro and Victor-Reinz.
     
  4. Does it help to turn the seal so the edges are not in line with the edges of the bearing cap? I have heard this can also help to not leak.
     
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  5. henryj1951
    Joined: Sep 23, 2012
    Posts: 2,310

    henryj1951
    Member
    from USA

    yes

    :cool:
     
  6. terryble
    Joined: Sep 25, 2008
    Posts: 541

    terryble
    Member
    from canada

    If that's true why does it stick to your finger so well?
     
  7. bt34
    Joined: Dec 22, 2006
    Posts: 262

    bt34
    Member

    Yup...you are totally correct..that stuff sticks to everything.
    By the same token I just kept my skin away from the product just in case it wasn't an old wives tale..(especially around the intake water jacket areas)

    The offset seal is the way to go here..
     
    Last edited: Apr 6, 2014
  8. colinsmithson
    Joined: Jan 27, 2013
    Posts: 383

    colinsmithson
    Member

    Thanks Guys
    happy to know they really work and not sales B,S
    Colin
     
  9. M224SPEED
    Joined: May 12, 2010
    Posts: 171

    M224SPEED
    Member
    from Missouri

    Fel-Pro used to make a rear main seal that was known by (A good parts counter man ) by the nick name of the " Grey Seal " I used them a few times but that was many years ago. Maybe someone on here knows the one I am refering to & has a part # you can use.
     

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