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Old 01-01-2011, 02:26 AM   #22 (permalink)
pounsfos
EcoModding Apprentice
 
Join Date: Oct 2010
Location: New Zealand
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Laura the Lancer - '81 Mitsibishi lancer LX
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Quote:
Originally Posted by Jim-Bob View Post
Normally you test a car with all three plugs out, throttle wide open, coil wire pulled, and with a fully charged battery. I also like to put jumper cables on the battery and attach them to a running car so that there is sufficient charge to maintain RPM across all 3 cylinders.
all you do for a compression test is take the spark plug out of the cylender you are testing .

chuck the compression tester in

crank it about 4 times then look at the results for that cylinder.

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)
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