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View Full Version : compression of an out of car engine


Kreator
12-26-2004, 07:01 PM
Is there a way to check cranking compression of an engine that is out of the car given the starter is still attached? Can't find a yes or no answer. Thanks

anotherblusi
12-26-2004, 08:56 PM
Yes all you gotta do is get the starter to crank the motor. So just use a battery and hook the starter up

Kreator
12-26-2004, 10:30 PM
Yes all you gotta do is get the starter to crank the motor. So just use a battery and hook the starter up

wont the motor kinda shake too much though? Also, when u do a normal compression test you are supposed to warm the engine up. If the engine is cold, my guess is the compression would be a bit lower. How much off do you think it's going to be?

phrozen
12-26-2004, 11:20 PM
#'s will be lower but the thing to look at is if the #'s are close together,

HyperTek
12-27-2004, 03:09 AM
all the spark plugs should be pulled... the engine will not shake alot.. My sr was tested this way on teh floor at teh shop i purchased it from lol