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Old 01-02-2011, 01:01 PM   #25 (permalink)
sc2dave
EcoModding Apprentice
 
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Quote:
Originally Posted by pounsfos View Post
all you do for a compression test is take the spark plug out of the cylender you are testing .



repeat for each cylinder and dont forget to put the plugs back in

dont know what your on about jim-bob. but thats the most interesting way ive heard someone do it (no offence intended just my 2c)
You disconnect the ign. wire,remove ALL the spark plugs,then check compression on each one.Leaving spark plugs in will just add resistance to the engine spinning.
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