Did rings on cylinder #2, swapped heads and now I have 20psi lower on cylinder #3. My compression was fine before on that cylinder ....

- All other cylinders between 165-178 .. #3 is about 155
- Do I need a valve adjustment maybe ? Or is it build up on valves ? (Never changed valves, just cleaned them up a bit)
- Car sat a while, this is a long shot, but could it be a sticky ring ?
- some valves had build up but I took off as much as I could

 

I am looking for a similar answer. My compression is 180 - 150 - 170 - 180. My #2 is worrying me.

 

How does your car run ? what's your setup ? Pull hard ?

 

I would suspect the valve stem seal.

 

Just bought it. 1995 Acura Integra SE all stock b18b1.

 

Hmmm .. how so ? What can I do about it

 

Never mind. I was thinking of another symptom when I wrote that.

Do a leakdown test to show were you're losing compression.

 

Will do soon .. don't own a leakdown tester, but I'll talk to a few friends

 

look on youtube for using youre compressoin tester to leakdown test

 

it was fine before you swapped heads and how its low... warped head maybe?

 

or headgasket

 

No over heating issues or leaks, not burning fluids at all .. I doubt it's a head warped or head gasket problem

 

bump

 

Under ASE specs you are fine. +/- 30 PSI is the max allowable limit. My guess, valves seats are pitted/worn or not seated yet since you did mentioned u cleaned them.

 

I had a similar problem on my gsr. took the hose for my compression tester, took the valve out of the engine connector side, twisted the hose in the low comp cyl, and then hooked it up to a compressor with about 95 psi, **with the cyl in question at TDC**, then listened to where the compression was leaking from.