jkuga
Proven Member
- 140
- 30
- Feb 12, 2017
-
Oregon
I know there is some information out there about how to read and interpret leak down results but it's mostly finding why you have 30%+ loss on one cylinder.
I did a leak down test this past weekend on my 99 gsx and got about 2-5 psi leaking out from 100psi going in. I used a harbor freight leak down tester.
Results were consistent across all cylinders except the far driverside. When I tested it, it leaked about 18 or so psi coming out the oil cap. I tested it after doing the other 3 and reset it at tdc and it came back leaking 2-5psi same as the others. I assume it just didn't have it quite at tdc the first time.
These results seem too good to me for a 20 yr old car. The engine only has 63k and is stock but I have no idea how well it was maintained prior to my ownership of it. Did I perhaps do the test incorrectly? Or is my engine in great shape?
Thanks for any advice.
I did a leak down test this past weekend on my 99 gsx and got about 2-5 psi leaking out from 100psi going in. I used a harbor freight leak down tester.
Results were consistent across all cylinders except the far driverside. When I tested it, it leaked about 18 or so psi coming out the oil cap. I tested it after doing the other 3 and reset it at tdc and it came back leaking 2-5psi same as the others. I assume it just didn't have it quite at tdc the first time.
These results seem too good to me for a 20 yr old car. The engine only has 63k and is stock but I have no idea how well it was maintained prior to my ownership of it. Did I perhaps do the test incorrectly? Or is my engine in great shape?
Thanks for any advice.