View Full Version : Engine compression
09-27-2001, 10:23 PM
Anyone have information on what the compression should be per cylinder on a Dodge 360? I found one used for my plow truck and want to check it out before hand. Thanks, Darin
10-11-2001, 04:00 AM
what year engine?
10-11-2001, 10:36 AM
10-11-2001, 02:57 PM
Minimum compression 100 psi (engine warm spark plugs removed and wide open throttle)
Maximum variation per cylinder 40 psi.
10-11-2001, 04:00 PM
May I ask what the FSM is, and is it online? Many years ago I raced and built my own engines - 40 pound variation sounds absolutely awful, like a real smoker.
10-11-2001, 09:11 PM
Factory Service Manual (Chrysler)
No its not online, its in your garage or local used bookstore :D
10-13-2001, 01:40 AM
a compression test is an ok way of telling and engines cond. but a leak down test is alot better. the above post says 100 psi with a maxium spread of 40 psi. i say he is in the ball park , but it should be around 115 to 120 with no more than 20 psi. spread.
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