Opinions on what to do, no compression.

Discussion in 'Technical' started by Wasgood, Mar 10, 2014.

  1. Wasgood

    Wasgood New Member

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    All my cylinders except 1 rank 160 - 170 on my TT. That one reads about 10, the measurement is not improved by pouring oil down the spark plug hole. We think it's a piston ring, or a hole in the piston. I know we won't know for sure until we do pull it all out, but any opinions on what I should do in terms of a rebuild? Money is kind of tight so I don't want to go full balls with it.
     
    Wasgood, Mar 10, 2014
    #1
  2. rob260

    rob260 Administrator Staff Member

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    Swap for a known good motor
     
    rob260, Mar 10, 2014
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  3. Madcow

    Madcow Active Member

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    Depends on how cheap you wanna go.

    Swap out, or get an inspection camera in the hole check the bores. Swap out the single piston with a known good one. - this would be the cheapest $ wise.
     
    Madcow, Mar 10, 2014
    #3
  4. ryzan

    ryzan Moderator Staff Member

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    10psi? Lol how bad does it sound when it's running.
     
    ryzan, Mar 10, 2014
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  5. Madcow

    Madcow Active Member

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    I had a Vg30DETT that had a hole in the piston, smoked so bad.
     
    Madcow, Mar 10, 2014
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  6. Wasgood

    Wasgood New Member

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    It actually ran okay, drove it back from Sydney, did smoke a bit, thought it was the turbos at the time :(
     
    Wasgood, Mar 10, 2014
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  7. Wasgood

    Wasgood New Member

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    I did try that, it was pretty difficult to see anything though.
     
    Wasgood, Mar 10, 2014
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  8. Madcow

    Madcow Active Member

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    I have found that if you put the piston to the bottom of its travel its easiest to see.
     
    Madcow, Mar 10, 2014
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  9. Wasgood

    Wasgood New Member

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    Anyone selling a cheap worked motor ? haha
     
    Wasgood, Mar 10, 2014
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  10. aussie1_1973

    aussie1_1973 New Member

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    i would go to you local electronics store and buy a camera that plug into a laptop. suirt some oil in the spark plug hole and have a look with the camera. broken ring and the oil will dissapear pretty quick, should be able to see a hole in the piston. some of the camera will actually see the top ring if you can get along the edge of the bore.
     
    aussie1_1973, Mar 10, 2014
    #10

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