Quote:
Originally Posted by Baltothewolf
Idk why but I thought I posted this hours ago but I guess it didn't stick? I have no idea what happened. Anyway, I finally did a compression test and here are my results.
Cylinder #4 = 180
Cylinder #3 = 180
Cylinder #2 = 160
Cylinder #1 = 165
I'm not sure if this warrants concern or if it's ok, but a 11.2% variation from highest to lowest is worrysome, as I have read that 15% is when the CEL will kick on for a mis-fire.
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At a 9.4:1 compression ratio I think you should see about 200 on your test, ideally. I've seen people not complaining about 180+ much. Adjusting valve clearance, I read, by increasing it--perhaps to max spec.--can help with compression. Did you check clearance on #1?