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    Author Topic: Compression Test?  (Read 497 times)

    Offline Glennster

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    Compression Test?
    « on: March 09, 2009 - 08:24:16 PM »
    What is the difference between a dry and a wet compression test?
    Thanks!
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    Offline 67vertman

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    Re: Compression Test?
    « Reply #1 on: March 09, 2009 - 08:51:17 PM »
    Dry is when you warm it up and then just turn it over.  Wet, you pour some 30 wt oil in the cylinder and run the test.  I usually pour about a tablespoons amount of oil in the cylinder.   :2thumbs:
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    Ron - Born and raised in Southern California

    I got the 1970 Cuda, but still need the hot blonde to ride shotgun!

    First car -1969 Road Runner 383 4sp

    Current ride - 1970 Barracuda 440-6 4 sp Dana 60  (4:10)

    Offline Chryco Psycho

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    • 70 Challenger R/T SE 70 tube Chassis Cuda now sold
    Re: Compression Test?
    « Reply #2 on: March 10, 2009 - 01:32:30 AM »
    if the rings are bad you will see a jump in compression with oil in the cylinder , if the valves are bad you will see marginal gain with oil
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    Challenger - You`ll wish You Hadn`t
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