86 SVO compression test results.

[SVOfish]

Though I would share my not so good results on the 86 today.

Compression results:

#1 140 PSI
#2 105 PSI
#3 145 PSI
#4 135 PSI

[Bob Holmes]

Ouch

[SVOfish]

Yes indeed. I have talked to a couple of people and since all of the other cylinders are "normal" perhaps a partially blown headgasket it to blame.

[MikeFleming]

Perhaps just as likely is a burned or cracked exhaust valve seat.

[Laredo]

Pressurize the cylinder and see where it leaks, listen for hissing noise in tailpipe, intake, crankcase.

[SVOfish]

+1 this is my next step. Have a compression gauge, but I dont have a leak down tester. Going to see if a local parts store has one for rent.