Compression test - United Bimmer Community

**Dudesky** · 01-21-2006, 10:28 AM

Just did a compression test on my engine:
230-230-230-223-224-232
Whew! I thought it would be bad news, but this is not too shabby for 146k miles

Just thought I'd share

**xsperf** · 01-21-2006, 12:02 PM

wow congrats, you have 3 230s, and the other two are very close, and when the numbers are very similar thats a realy good thing, means your engine is balanced and a ton of other good things, props!

**catalyst** · 01-21-2006, 12:56 PM

How do you do a compression test?

**Dudesky** · 01-21-2006, 05:12 PM

I'm doing a DIY out of my work today, so stay tuned. Should be up by tomorrow . . . it's pretty easy tho

**xsperf** · 01-21-2006, 07:24 PM

in general, catalyst, you remove the spark plugs and get an air pressure guage, screw it in to your spark plug hole, and crank your car