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compression test

Discussion in 'The Garage' started by sunnyc123abc, Sep 30, 2006.

  1. sunnyc123abc

    sunnyc123abc 1/2 ton status

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    So what am i doing wrong here. I just got a 350 and im trying see what the compression is. So i take all the plugs out, and plug in my compression tester. Since the engine is on a stand i turn the engine over using a rachet on the balancer. But im not getting any readings. This is my first time, so im kinda learning as i go. Thanks
     
  2. DEMON44

    DEMON44 Low-Tech Redneck

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    no you have to spin it with a starter. and only 1 plug at a time. no compression in the 7 other cylinders would spin the crank faster cause theres no compression resistance.
     
  3. sunnyc123abc

    sunnyc123abc 1/2 ton status

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    ok...i thought that would be it. Thanks. Damn, I took the flex plate off before i put it on the stand.:doah:
     
  4. sunnyc123abc

    sunnyc123abc 1/2 ton status

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    So how am i suppose to crank it on the engine stand if the flex plate won't fit. Any ideas:confused:
     
  5. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    take it off the stand and just block it off on the floor.. We do it all the time at work... Piece of ply under the pan and block up to the motor mount bosses...
     
  6. sunnyc123abc

    sunnyc123abc 1/2 ton status

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    ok, ill try that..thanks
     
  7. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Hell, i used to fire them up and run them on the garage floor.
     
  8. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    yup, us too... Hook a hose to the rawpump, 5 gal jerry can, let er rip! :wink1:
     

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