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Unread 11-05-2011, 01:41 PM   #1
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1990 YJ Wrangler 
Join Date: Apr 2011
Location: Brentwood, California
Posts: 3,316
how many!?!!

How many times do you turn the engine over for a compression test.

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Unread 11-05-2011, 05:09 PM   #2
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1989 YJ Wrangler 
Join Date: Aug 2011
Location: Amity, Oregon
Posts: 73
I watch the Gauge on the tester and it pumps up in 2 or 3 rev. and then levals off. I give it a couple more to see if it will go any higher then stop. Take the reading and release the presure.
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Unread 11-05-2011, 06:44 PM   #3
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1988 YJ Wrangler 
Join Date: Nov 2009
Location: Waco, TX
Posts: 6,830
I think the Haynes says ten.
Adopt your pets. Don't shop for them.
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Unread 11-05-2011, 07:42 PM   #4
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1994 YJ Wrangler 
Join Date: Jun 2007
Location: Cary, NC
Posts: 339
2X on davsyjdd, what ever you do REMOVE the COIL WIRE first. One of my friends ended up with a singed eyebrow and half a mustache doing a compression test.
94 YJ Sahara

The best Engineering is no match against natural Stupidity.
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