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From: alumcan
Email: alumcan300dhd@aol.com
Date: February 06, 2002
Time: 20:16:28
Hey Blakester, here is the awnser to yer question. Wet/dry compression check is/should be done in this way. ALL the spark plugs removed, take a piece of masking tape and number each wire as you take it off. The motor should be up to running tempature, not always feasible though, COIL WIRE TOTALTY REMOVED! W.O.T. (wide open throttle, the reason the coil wire is removed) Start with # 1 cyl. (easiest way to tell # 1, stand at the side of the car, and the head that is farthest forward, (towards radiator) that cly is # 1) Have someone else sit in the car and crank on the starter. (tell 'em to leave the radio alone, they have to hear you) Crank untll the dial on the compression guage goes up no farther, stop cranking, and THAT reading is the compression check for that cly. Write it down. Repeat for the rest of the clys. THAT procedure is the DRY check. To do the WET check, a squirt a bunch of oil into each cly, carnk the motor over a few times, then start with # 1 and repeat. Compair DRY readings with WET readings. If there is a NOTICABLE different reading between one of the clys, it indicates that there is a burnt valve or broken rings. Depending on how many beer breaks you take the whole procedure shouldn't take any more than a hour and a half.
