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Rear main seal direction 304

Discussion in 'V8 Development and Modification' started by nes138, Sep 12, 2018.

  1. nes138

    nes138 Member

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  2. Smitty

    Smitty Well-Known Member

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  3. nes138

    nes138 Member

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    I seam to have a different seal.
     
  4. EYY

    EYY Well-Known Member

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    There aren’t really any solid answers in that thread. Seem like there’s a bit of machine work involved but that depends on who you speak to. Don’t think I’d be comfortable running the neo seal with a knurled crank. Tbh I’m comfortable with a rope seal even though they take a bit of time and effort to fit.
     
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  5. Smitty

    Smitty Well-Known Member

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    huh...??
    pics in that link show the correct installed position for the seal
     
  6. nes138

    nes138 Member

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  7. _R_J_K_

    _R_J_K_ Well-Known Member

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    I can't help, but this is an interesting watch on the installation of a rope seal if you haven't seen it before-


    Makes some interesting recommendations at the end.
     
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  8. nes138

    nes138 Member

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  9. EYY

    EYY Well-Known Member

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    Op has a different seal
     
  10. EYY

    EYY Well-Known Member

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    They’re covered in graphite. Watch the come racing video on how to fit the rope seals. You need to trim them.
     
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  11. nes138

    nes138 Member

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    Yeah I saw that I need to trim them, that's why I think its a crank totally out job. The black neo seal looks like it slides in really well. i think it's by promaster. Similar to a gearbox seal i guess. I used loctite 515 around it.

    https://photos.app.goo.gl/onmA5y4KSzLeido87
     
    Last edited: Sep 13, 2018
  12. keith reed

    keith reed Member

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    My crank is in at the moment to have the knurling removed. The area is built up
    and then ground down. I have had to take my car off the road twice due to oil
    leaking from the rear seal. The first time was with a rope seal that wasn't fitted
    properly. They usually say that the engine block is porous. Come racing didn't
    seem to have a problem. The second time a Buick neoprene seal was used. The
    person who did the work for me said there was a chip in the crank (not true).
    It was fine for a while then started to leak. The problem is as has been pointed
    out previously is the knurling.
     

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