turtle1173
Chief Petty Officer
- Joined
- Nov 29, 2001
- Messages
- 437
Hi all,<br /><br /> I have a 1972 85HP Chrysler that I just put on my boat. The history on the motor is a little vague but I know that it has been sitting indoors for around 10 years.<br /><br /> I squirted a small amount of WD40 inside the cylinders before turning the flywheel by hand to lube the cylinders a bit. This was on Friday.<br /><br /> On Saturday I finally got it put on my boat and got it hooked up and decided to check the compression. There readings were as follows:<br /><br />#1: 126<br />#2: 100<br />#3: 130<br /><br /> I know the guidelines about no more than 15psi between cylinders. What I'm wondering is if it is possible to determine if this variation on #2 is from stuck rings due to sitting for an extended period? I can't run the engine because I believe it has a bad CD module, so I can't decarb and retry. However, if it isn't stuck rings, I don't want to put the money out to buy a CD module.<br /><br />Any suggestions?<br /><br />Thanks,<br /><br />Shane