Compression in Cyl 1 from 150 to 190 by itself??!? - Honda Prelude Forum

prelude styl · 10-08-2003, 09:42 AM

This is my second 4th gen, I bought this one about 6 months ago not running. I fixed it same day, and put on all my bolt ons from the previous lude. Maybe a week later, after changing all the regular maint. parts (cap/rotor/wires/pcv/plugs/oil/coolant) I decided I'd do a compression test the results were 150, 200, 205, 195 so I obviously thought that I had a bent valve in the #1 cyl because I did a wet test and the result for the #1 cyl was the same. I also did the test at 2 other peoples houses with 2 other compression testers, same variance between the cylinders #1 being 50 lower. Now to yesterday, I did an AMSOIL change and hadn't done a compression test in a while and wanted to see where my motor was at, so I did and my compression test was as follows: 190/195, 195, 190/195, 190/195. I ran the test in each cyl a couple times to be sure.

Now who in the world can tell my HOW the #1 cyl is at 190/195?!?!?!?!??!!??!?!
I sat up for a long while last night wondering WTF?!!

Phamine · 10-08-2003, 12:05 PM

It seems like oil is lubricating your rings better than before?

prelude styl · 10-08-2003, 12:08 PM

well the thing is.. I did a wet test when I got the low compression number in cyl 1, and it was still the same wet, so it's not a matter of the rings. Soooo confusing.

Sonik_Fury · 10-08-2003, 12:16 PM

Maybe your car has some form of mutant healing factor.....

prelude styl · 10-08-2003, 12:33 PM

Yea that's what my friend who was holding the tester said..

lol.. I bent my valves back into place.