2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

compression testing question

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Old Feb 7, 2005 | 03:24 PM
  #1  
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neu
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From: tennessee
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?
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Old Feb 7, 2005 | 05:05 PM
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From: tennessee
well, i guess i will just give it a shot the old fashioned way, since no one wanted to gimme some tips..
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Old Feb 7, 2005 | 06:04 PM
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You have to take the schraeder valve off and watch the needle bounce. It should at least go to 90 psi.
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Old Feb 7, 2005 | 06:09 PM
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From: tennessee
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
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Old Feb 7, 2005 | 07:41 PM
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www.rotaryresurrection.com ---> tech ---> compression check
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Old Feb 8, 2005 | 12:56 AM
  #6  
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From: tennessee
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)
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