Compression test came back... What do ya think?
12-22-2009, 03:19 PM
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Compression test came back... What do ya think?
So I'm looking at an 02 with 66k on it. I had a compression test done and the Honda dealer looked it over and drove it. He said the transmissions good, duffs good clutch is good and the compression test came back 220 for cylinders 1, 2 and 3 and 4 was 215. Is this a good thing? That cylinder 4 is down 5? I was told that even numbers with no more than 10 psi dif in each cylinder but I've heard some bad things about cylinder 4. Other than that the tech said it will née front pads soon and that's all.
12-22-2009, 04:00 PM
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i think you could have put this information in this thread:
https://www.s2ki.com/forums/index.ph...f=193&t=753245
https://www.s2ki.com/forums/index.ph...f=193&t=753245
12-22-2009, 04:01 PM
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Originally Posted by 11Past9,Dec 22 2009, 07:54 PM
Sobdoesb220 mean I'm down on power compared to you because you're at 230+
12-22-2009, 04:01 PM
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220 psi is low. Too low, if the test was done right. Impossible to tell without checking the tester (both equipment and person) against a reference.
A 5 psi difference is nothing to worry about, but @ 220psi I've found bent or badly pitted valves and/or scoring of the bores.
I would see if you can have an independent shop check it out. They shouldn't charge more than $50 to look the car over and do a comp. test, and the dealer should be willing in order to make the sale.
A 5 psi difference is nothing to worry about, but @ 220psi I've found bent or badly pitted valves and/or scoring of the bores.
I would see if you can have an independent shop check it out. They shouldn't charge more than $50 to look the car over and do a comp. test, and the dealer should be willing in order to make the sale.
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12-22-2009, 04:11 PM
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^^ researching comp. tests, it doesnt matter if you have 100 psi across the board, as long as there isnt a 20-30 psi difference between cylinders your fine.
The amount of psi on the guage is determined on how many times you crank the engine.
thats what i gathered through my searches.
The amount of psi on the guage is determined on how many times you crank the engine.
thats what i gathered through my searches.
12-22-2009, 04:25 PM
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Originally Posted by marcucci,Dec 22 2009, 05:01 PM
220 psi is low. Too low, if the test was done right. Impossible to tell without checking the tester (both equipment and person) against a reference.
A 5 psi difference is nothing to worry about, but @ 220psi I've found bent or badly pitted valves and/or scoring of the bores.
I would see if you can have an independent shop check it out. They shouldn't charge more than $50 to look the car over and do a comp. test, and the dealer should be willing in order to make the sale.
A 5 psi difference is nothing to worry about, but @ 220psi I've found bent or badly pitted valves and/or scoring of the bores.
I would see if you can have an independent shop check it out. They shouldn't charge more than $50 to look the car over and do a comp. test, and the dealer should be willing in order to make the sale.