compression Checker

Discussion in 'Modifications And Maintenance' started by Taras, Jul 2, 2008.

  1. Taras
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    Taras BANNED

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    Looking for a compression checker tool. never used it so i am not even sure how it looks. If anyone has one, it would be nice if i could barrow it for a day or so.

    Thanks, Taras
     
    Taras, Jul 2, 2008
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  2. predavore
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    predavore Well-Known Member

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    They are cheap. Go to NAPA and get one. They are around $30. Very useful tool to have around if you are buying (or selling) used cars.

    The way they work is that you disable the injectors and spark plugs. This is done differently on various cars. On my Evo, all I had to do was unplug the crank sensor. Boom, disabled everything necessary for me to run the compression test.
     
    predavore, Jul 2, 2008
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  3. Taras
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    cool, thanks.
     
    Taras, Jul 2, 2008
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  4. Chux
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    Chux Well-Known Member

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    agreed. just buy one. they screw in in place of the spark plug.
     
    Chux, Jul 2, 2008
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  5. DGRx
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    DGRx Member

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    I have one you can borrow. Located in BP. MN.
     
    DGRx, Jul 2, 2008
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  6. Taras
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    Taras BANNED

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    Cool, i will see if i can get one at NAPA if its cheap i will buy it if not i will PM you.
    Thanks.
     
    Taras, Jul 2, 2008
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  7. DGRx
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    DGRx Member

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    Okay.
     
    DGRx, Jul 2, 2008
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  8. sjwelna
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    sjwelna Well-Known Member

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    Don't forget to make sure you hold the throttle at WOT while cranking the car to check the compression too.

    -Steve
     
    sjwelna, Jul 3, 2008
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  9. Shibbs
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    Shibbs The Daywalker

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    Not necessarily true on Drive By Wire vehicles. ;)

    But I'm assuming this is for the Miata, so yes, WOT while cranking.
     
    Shibbs, Jul 3, 2008
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