1989 Bronco II. Compression test results. Higher on one side of the engine

[FarOffSuns]

Hey all,

Did a compression test on my 1989 Bronco 2. With the 2.9l v6. Results are as following:

Cyl 3: 170 psi | Cyl 6: 165 psi
Cyl 2: 180 psi | Cyl 5: 165 psi
Cyl 1: 180 psi | Cyl 4: 160 psi

I found it weird that the compression was noticeably higher on one side. 180 also seems like its unusually high for this engine.

Any thoughts or does this look good?

Thanks!

 

[alwaysFlOoReD]

I'd say its good.
Did you happen to start with #1 and end at #6? If so, the battery getting depleted might have something to do with those readings.

 

[Uncle Gump]

10% highest to lowest is acceptable. So your pretty close.

Are you having running issues?

 

[FarOffSuns]

10% highest to lowest is acceptable. So your pretty close.

Are you having running issues?

No running issues I just thought it'd be a good idea to check. I do have bad valve stem seals for sure though. I am changing those next week. Blue smoke out the exhaust when starting the engine for a couple of seconds. No smoke after.

 

[rusty ol ranger]

No running issues I just thought it'd be a good idea to check. I do have bad valve stem seals for sure though. I am changing those next week. Blue smoke out the exhaust when starting the engine for a couple of seconds. No smoke after.

Yeah those numbers are totally normal....and pretty damn good.