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  1. #1
    Tony's Avatar
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    Crankcase seal testing question

    Ok, I've read that to test seals you apply low vacuum or pressure to the FP pulse line fitting on the crank case. I've also read that the same low vacuum or pressure is supplied through the spark plug hole.

    My question is, if you use the pulse nipple are you testing front and rear seals or just the rear? In other words, is the crankcase free flowing or is it divided into 3 seperate chambers?

    If useing the plug hole do you check all three?


  2. #2
    The assembly is not air tight! so you will be checking the entire motor!

  3. #3
    if your talking about your slt780 , then the pulse port does all of the block. there are divisions inside of the block , but there not ment to be air/vacuum tight.

    So testing threw the pulse port will do the intire block. dont forget to block all inlet/outlets

  4. #4
    Tony's Avatar
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    Thanks guys, that's what I thought, just checking my common sense

    I made block off plates useing plexiglass, rtv, and gaskets as templates.

  5. #5
    Good job! keep us posted! This extra step is where I found out that My Hot Product's oil injection block off-plug was defective so it saved my motor! Z
    Last edited by ZMANN; 06-22-2007 at 10:36 PM.

  6. #6
    ph2ocraft's Avatar
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    Quote Originally Posted by Tony View Post
    I made block off plates useing plexiglass, rtv, and gaskets as templates.
    Saweet!

  7. #7
    Tony's Avatar
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    Quote Originally Posted by ph2ocraft View Post
    Saweet!
    I've done so much with so little for so long, I can now do anything with nothing! (with the help of GH or course)

  8. #8
    Quote Originally Posted by Tony View Post
    I've done so much with so little for so long, I can now do anything with nothing!

    Classic!

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