Need advice on compression and/leak down TR 1988 | FerrariChat
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Need advice on compression and/leak down TR 1988

Discussion in 'Boxers/TR/M' started by AKINSB, Apr 27, 2015.

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  1. AKINSB

    AKINSB Formula Junior

    Feb 15, 2013
    502
    Santa Barbara
    Full Name:
    Alex K
    #1 AKINSB, Apr 27, 2015
    Last edited: Apr 27, 2015
    I am in the process of completing purchase and PPI. Have completed the majority of PPI and have only the compression testing to perform. If all all the cylinders read similar #'s on the compression and are within the acceptable range is it necessary to do a leak down on the all the the cylinders? Or, is a single cylinder leak down enough and probably reflective of all the cylinders? The independent is suggesting that this assumes that all the cylinders will have similar leak downs if all have comparable normal compressions there is no need for a leak down on all the cylinders. One leak leak down should be reflective of all the other cylinders? Please advise as to the correctness of such thinking.

    Obviously if there is a low cylinder and out of the statistical range of the others further leak downs will be indicated.

    Thanks for the advice. Potentially a future TR owner.

    Best regards,

    AK
     
  2. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,116
    Cowboy Capitol of the World
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    Brian Crall
    #2 Rifledriver, Apr 27, 2015
    Unlike some other makes and models the Ferrari 4 valve series of which the TR was one was not known for problems causing unexpected compression loss and the motors generally lasted a very long time.

    A leak down is not something I generally do on them unless there is a problem.
     
  3. AKINSB

    AKINSB Formula Junior

    Feb 15, 2013
    502
    Santa Barbara
    Full Name:
    Alex K
    #3 AKINSB, Apr 27, 2015
    Thanks Brian for the prompt reply! Compressions check is occurring this morning. Really appreciate your experience and insight.

    AK
     
  4. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    9,546
    southwest Germany, France ( Alsace ) and Thailand
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    romano schwabel
    #4 turbo-joe, Apr 27, 2015
    when the compression test is ok there is then no need to do a leak test
    only if the compression is not ok it would be good to do a leak test to see how bad it is
     
  5. Melvok

    Melvok F1 World Champ
    Owner Silver Subscribed

    Jul 25, 2008
    14,268
    Amersfoort, The Netherlands, Europe.
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    Mel
    #5 Melvok, Apr 27, 2015
    That's what we usually also do here Romano !:)
     

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