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expected compression?

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baybuscamperkid prince of insufficient light, ruler of heck

4,316 posts · joined Aug 2002 ·

#593577
just picked up a 69 1500 bugsly, wondering what sort of compression i should be expecting if the motor is in good nick? i did a compression test today on her (think i did it right) the front to cylinders registered 120-125 psi, the rear drivers side was 100 and i couldnt get teh guage into the rear passenger side. does 100-125 sound ok?
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66deluxe Custom Title Time!

1,593 posts · joined Aug 2005 ·

#593595
yeah that seems ok
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Bizarre Moderator The artist formerly known as blue74l

12,787 posts · joined Aug 2002 ·

#593619
I would suggest you would want a + or - 5 psi difference

100 is a bit low if the others are 120ish
If they were all 100 to 105 then that would be cool as well
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Anthiron The Baja Rejuvenation Begins

4,936 posts · joined Oct 2003 ·

#593649
yeah what bizarre said,


i did my 1600 not to long ago and got about 120psi on all cylinders
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