How to: Compression Test!
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This is a discussion on How to: Compression Test! within the Engine Performance forums, part of the Tutorials & DIY category; Spent 45 min performing compression test with compression tester today. 2002 WRX with 90k miles Mods: VF34 @ 16.5psi ...

  1. #1
    Registered User WRXreX's Avatar
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    How to: Compression Test!

    Spent 45 min performing compression test with $25 compression tester today.

    2002 WRX with 90k miles
    Mods: VF34 @ 16.5psi 302whp
    JDM STI TMIC
    Maddad v2 DP & whisper catback
    One step colder NGK platinum plugs
    Stock intake with K&N panel filter
    German castrol oil

    1. Remove stock intake box, etc:



    2. Remove 12mm bolt in order to remove coil pack from each cylinder:




    3. Remove spark plugs using 5/8" long socket with an extension



    4. Coil pack and spark plugs removed:

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  3. #2
    Registered User WRXreX's Avatar
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    5. Pull ignition fuse
    - Fuse remover is located next to battery:



    6. Connect compression tester into each cylinder:



    7. Now it's time to crank the engine with wide open throttle. Crank the engine 6 times.


    8. Repeat the test for each cylinder and pray numbers come out good:





    :banana:

  4. #3
    Registered User silverbullet207's Avatar
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    Dec 2009
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    Cincinnati
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    Good write up man!
    ** Hawk-Eye Alliance #513 **
    '06 WRX Stage 2

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