1-210
2-210
3-210
4-211
5-215
6-211

These are the compression #'s I got yesterday when checking my compression. I have a 98 with 122k. My question is, is this good? Is this bad? I am not sure if this is too high....my haynes manual says that 185psi is normal, and there should not be more than a 14 psi difference between the cylinders...can some one please shead some light on the numbers I got.Thanks.

Carson

 

Your engine is fine - as long as the numbers are within 10psi of each other, which in your case, they are.

210 is quite high... what kind of a compression tester did you use? Did it have a tip that you had to screw on before you inserted it down the ignition chamber?

 

it was my friends' compression tester....it had a blue hose and screwed into the spark plug hole, with a gauge that you could pop on and off of the top...I checked each cylinder twice for accuracy. Whlie testing I had all of the spark plugs out and and the throttle hung wide open....I guess I am just wondering if this is "too" high, haynes says that carbon deposits can make it "too" high...but they dont give you a number for "too" high....any info would be great