04-06-2013, 08:41 PM
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#10
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Senior Member
Join Date: May 2010
Location: Asheville,NC
Posts: 3,104
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Re: Compression PSI
Quote:
Originally Posted by roccaas
Pulled 4 plugs. Turned 4 full turns (amazing to reach across an engine and push on a metal rod that fires the starter.
1st turn = 60 psi.
6th or more = 60 psi.
Throttle was closed, coil disconnected, gas gauge shut down, Tilly bowl dry.
This all came about from a Samba guy (VW Bus) who had 3 of 4 exhaust valves that looked like the back end of a Wookie the night after some Romulan Ale, so he suggested a vac test.
I really don't want to pay for a leakdown test, and the car runs fine - so I dont' want to mess TOO much with it, and 60 psi sounds good, but "The Book Of Les" does not give a figure.
Is there a better way to do this to get better answers?
I really don't want to pull the valves/cover, etc. cause then the problems will mount and I'll wish I'd just left a well running car ALONE!!
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Always check compression with the throttle wide open.
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