Hi All,
I have read many of the questions "Is xyz a good compression reading for my motor" along with all the responses suggesting that the actual PSI in the cylinder isn't as important as having a consistent reading across all cylinders. I understand that having 100 psi on one cylinder and 80 on another and 90 on a third, etc is poor.
I have never taken a compression reading before, but yesterday I borrowed a compression tester from my local O'Riellys auto parts store and checked the compression on my 1989 DT200. All 6 cylinders read 90 PSI and seem to hold it.
I tested both cold and at operating temperature. The tester said to check compression with all plugs removed and the tester inserted into one cylinder at a time. Hopefully that's the correct procedure.
I hate to be another "is 90psi an ok reading" poster, but gosh .. that just seems low. It is very consistent though .. all 6 cyliders read 90 pretty exactly.
Thanks!
Chris
I have read many of the questions "Is xyz a good compression reading for my motor" along with all the responses suggesting that the actual PSI in the cylinder isn't as important as having a consistent reading across all cylinders. I understand that having 100 psi on one cylinder and 80 on another and 90 on a third, etc is poor.
I have never taken a compression reading before, but yesterday I borrowed a compression tester from my local O'Riellys auto parts store and checked the compression on my 1989 DT200. All 6 cylinders read 90 PSI and seem to hold it.
I tested both cold and at operating temperature. The tester said to check compression with all plugs removed and the tester inserted into one cylinder at a time. Hopefully that's the correct procedure.
I hate to be another "is 90psi an ok reading" poster, but gosh .. that just seems low. It is very consistent though .. all 6 cyliders read 90 pretty exactly.
Thanks!
Chris