compression test
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Junior User
Joined: Aug 2006
Posts: 96
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compression test
hi all, been awhile since i posted last,been reading posts every day tho.
i recived my new compression tester friday, so sat morn was spent testing, here is what i got:
#1 460
#2 460
#3 440
#4 440
#5 440
#6 420
#7 400
#8 400
do these numbers seem ok? i have not been able to find info on what a good cyclender should read only info i have found was that there should not be more than 100 psi diff between top psi and bottom psi reading,so thats in range.any info will be great.
p.s. as a side note its amazing how much faster a new starter spins up the motor than the old lol .
i recived my new compression tester friday, so sat morn was spent testing, here is what i got:
#1 460
#2 460
#3 440
#4 440
#5 440
#6 420
#7 400
#8 400
do these numbers seem ok? i have not been able to find info on what a good cyclender should read only info i have found was that there should not be more than 100 psi diff between top psi and bottom psi reading,so thats in range.any info will be great.
p.s. as a side note its amazing how much faster a new starter spins up the motor than the old lol .
Last edited by Dave Sponaugle; Feb 14, 2007 at 02:00 PM.
Post Fiend
Joined: Nov 2004
Posts: 5,638
Likes: 1
From: Manitoba
Actually the lowest cylinder should be no less than 75% of the highest....
Your numbers are fine......compression tests should be done on a warm engine also.
What engine and truck year.......
Please do up a signature with all your truck info........
Your numbers are fine......compression tests should be done on a warm engine also.
What engine and truck year.......
Please do up a signature with all your truck info........
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