Ok, you done the dry test now to find out if rings or valve seals are worn you need to do a wet test. And all you do is sqirt some oil into the cylinders. If compression increases then rings are worn if no change then Valves or valve seals are worn.
January, 3, 2011 AT 1:46 PM
Good Morning. Thank you for your reply.
1. I will do the wet test this weekend to confirm the rings or valves, but: a) Could this car run apparently normally, with an occasional rough idle, while seemingly having no compression on cylinder #2?
B) If I wanted to do a leak test how would I manually turn the cylinders to top dead center for each leak test?
January, 3, 2011 AT 5:21 PM
Sorry, forgot to answer the other question.
Honestly the vehicle should run ruff as hell since it is a 4 cylinder all the time with no compression in any one cylinder. What you may want to do is recheck the #2 cylinder before doing the wet test. It is possible the compression tester didn't seal properly.
To Manually turn the Engine you can get a socket to put on the Crank Bolt just make sure you turn engine in right direction.
January, 4, 2011 AT 1:52 AM
Thanks for the information. Does the crank always turn clockwise (when facing it)? How do I tell the correct direction?
January, 4, 2011 AT 4:40 AM
You will need to start the vehicle and look or have someone just bump the key a few times to figure out the rotation.
I am pretty sure it spins clockwise, but alway nice to just double check.