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toon1 |
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#1
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 ![]() |
Did a compression check last night how so these numbers look to you guy's....
Cyl. # 2 145psi #1 125 #4 130 #3 140 the motor was cold when I did the test.. |
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r_towle |
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#2
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Custom Member ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 24,599 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States ![]() ![]() |
I agree that if you are going to pull the motor, you might as well do a compression test...
But it is meaningless if you do it wrong...it will send you down the wrong path. First, get the car up to normal operating temp..you cannot do this by leaving the car at idle... If you cannot drive it, you need to at least rev it to 2k rpms for like 15-20 min. then do the test. First do it dry... Then a bit of oil in each cylinder and do it again.. Record both readings for your buddy with and without oil.. The oil will seal off the rings,,,so if you have poor compression doing the dry test, and it bumps up after you put oil in the plug hole, you may need rings. If there is no change, you could either have a valve problem, or cylinder leaks... Now, I would also say that before you go any further, describe the problem here, in detail and get some help... These cars have quite a few abnormal issues that we have all run into and fixed with no problems... I will say one thing...this vw flat four motor will run perfect even if its low on compression, leaks , etc....it still can be tuned to run very smooth... Rich |
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