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Thread: compression test on my old 350...
          
   
   

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  1. #1
    MadMax's Avatar
    MadMax is offline CHR Member Visit my Photo Gallery
    Join Date
    May 2004
    Location
    Munich
    Car Year, Make, Model: 1983 Chevy 5,7l G20
    Posts
    213

    compression test on my old 350...

     



    Hi Folks, I just did a compression test on my old 350. Borrowed the gauge from a car shop, so it's readings are very possibly correct. This is what I got, I did the test twice (three times on the weak cylinders) and always got the same result, so it probably won't be a measuring error. The passenger side head gasket is blown, when I crank it over water sprays out of the spark plug hole
    The engine doesn't run all too well and as I mentioned before, it doesn't respond too well to timing adjustments (wouldn't with 3 cylinders dead)
    What do you think it is? Doesn't look like the piston rings to me, I would guess it's just the gaskets...
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    Harharhar...

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