The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

2G Leak down test results TOO good?

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

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.
 
No I have no reason to believe it's unhealthy. In calan's write-up on doing a leak down test it's says 5% leak down is a darn tight engine. Obviously I'm very happy with the results if they are accurate. I guess I just thought that results would be lower given the age.
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

Back
Top