low compression in three cylinders
#1
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low compression in three cylinders
I did a compression test and found 125psi, 145psi, 135psi, 165psi
im thinking its my valves or valve guides are worn, what do you guys think it could be ?
im thinking its my valves or valve guides are worn, what do you guys think it could be ?
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#11
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If the car is running well, let it be---thinking you are trying to fix a problem that doesnt exist...so you are high on one cylinder--doesnt mean you are low on 3. if the numbers were 110 or less then maybe...but really? Look at the one that was 165 one more time and see if you get a different reading. The 3rd cylinder is the one to watch that tends to go before the others.
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im waiting to hear the results from the leak down i asked to have it done on thursday im still waiting and i did the compression check 3 times cylinder 1 2 3 are low 4 is at 165 spec is 175
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i found this in the service manual
"Standard value (at engine speed of 250 r/min): 1,000 kPa (145 psi)
Minimum limit (at engine speed of 250 r/min): 637 kPa (92 psi)"
with that spec is my motor fine and has high compression in cylinder 4? now im confused!
"Standard value (at engine speed of 250 r/min): 1,000 kPa (145 psi)
Minimum limit (at engine speed of 250 r/min): 637 kPa (92 psi)"
with that spec is my motor fine and has high compression in cylinder 4? now im confused!