some feedback on leakdown results..308GTS

Discussion in 'Technical Q&A' started by groovzilla, Dec 2, 2003.

  1. groovzilla

    groovzilla Karting

    Nov 28, 2003
    seattle, wa.
    Full Name:
    hello all,

    interested in this car and had engine checked...can i please get some input on these results as to excellent-good-ok??:

    1979 308GTS...38,000 miles

    leakdown...8% 8% 9% 10% 9% 8% 8%10%

    compression...170 165 170 165 165 160 165


    william ceriale seattle, wa.
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  3. pma1010

    pma1010 F1 Rookie

    Jul 21, 2002
    Full Name:
    Appear reasonable if a bit higher leakdown/lower compression than mine. Some variation test to test caused by operator variances, engine temp, no of times it is spun etc. Net, net, I think the results are reasonable. I've been told anything over 12% on leakdown and +/- 10 psi on compression is a bit of a worry. Your results are within these tolerances.
  4. Wayne 962

    Wayne 962 Formula Junior

    Nov 27, 2003
    Leakdown and compression numbers by themselves are not terribly useful, as there are a number of factors that can affect the resulting numbers. What is truly important is are the numbers consistent and equal across the range - which they are. That is good.


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