compression testing question
 

can i accuratly check my compression with a generic compression tester?
is there something i need to do differently with it, i heard someone mention removing a valve or something, im still not clear on it all... i did the poor mans test on it, but the results were kinda ify so i want some numbers...
could someone tell me how to use a generic (crappy walmart) compression tester on my N/A 13b S4?

well, i guess i will just give it a shot the old fashioned way, since no one wanted to gimme some tips.. :( :)

You have to take the schraeder valve off and watch the needle bounce. It should at least go to 90 psi.

oh ok, yeah that's what i read before, just wanted to clear it all up before i got out there and did it. thanks man

www.rotaryresurrection.com ---> tech ---> compression check

Thanks for the input guys, and Kevin.. if my compression test goes as badly as im expecting it to... i might be sending you an engine in the next month or so (i know you got a work load on ya so i will wait a while)