Hellraiser is looking for answers
Thread Starter
formerly Chris p 02 (11-04-2011)
Joined: Sep 2008
Posts: 18
Likes: 0
Hellraiser is looking for answers did a leak down and a compression test on my motor because someone said I have a #3 cylinder low and out of spec.
leak down test and compression test
#1 100/90 cold 100/90 hot 190 psi cold
#2 100/88 cold 100/92 hot 200 psi cold
#3 100/88 cold 100/85 hot 200 psi cold
#4 100/83 cold 100/85 hot 200 psi cold
#5 100/87 cold 100/86 hot 200 psi cold
#6 100/88 cold 100/86 hot 200 psi cold
#7 100/85 cold 100/84 hot 200 psi cold
#8 100/87 cold 100/86 hot 200 psi cold
when the motor temp was hot I could hear air puching out of the air intake on every cylinder leak down test. this is a 440 built for dope ring gaps .024/.029 thanks for the help. Is there other things I could check!
leak down test and compression test
#1 100/90 cold 100/90 hot 190 psi cold
#2 100/88 cold 100/92 hot 200 psi cold
#3 100/88 cold 100/85 hot 200 psi cold
#4 100/83 cold 100/85 hot 200 psi cold
#5 100/87 cold 100/86 hot 200 psi cold
#6 100/88 cold 100/86 hot 200 psi cold
#7 100/85 cold 100/84 hot 200 psi cold
#8 100/87 cold 100/86 hot 200 psi cold
when the motor temp was hot I could hear air puching out of the air intake on every cylinder leak down test. this is a 440 built for dope ring gaps .024/.029 thanks for the help. Is there other things I could check!
Last edited by Hellraiser#1; Jan 8, 2012 at 05:39 PM.
Thread Starter
formerly Chris p 02 (11-04-2011)
Joined: Sep 2008
Posts: 18
Likes: 0
Thread Starter
formerly Chris p 02 (11-04-2011)
Joined: Sep 2008
Posts: 18
Likes: 0
might need to put it back the way that it was and try that. I don't think that was checked. Ill ask when I talk to them monday! why would I hear more air push back when valves were closed when hot on the intake side? Did not hear it when the motor was cold
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formerly Chris p 02 (11-04-2011)
Joined: Sep 2008
Posts: 18
Likes: 0
Thread Starter
formerly Chris p 02 (11-04-2011)
Joined: Sep 2008
Posts: 18
Likes: 0
just did another leak down after reading on the net. The leak down tester I have said to do it with the piston at the bottom of the cylinder and that's where the first numbers came from. After reading and talking to others I was told to check it a TDC at run temp. I did this and here are the new numbers? What do you think?
#1 100/91.5
#2 100/85
#3 100/82
#4 100/82
#5 100/92
#6 100/86
#7 100/81
#8 100/87
#1 100/91.5
#2 100/85
#3 100/82
#4 100/82
#5 100/92
#6 100/86
#7 100/81
#8 100/87
Thread Starter
formerly Chris p 02 (11-04-2011)
Joined: Sep 2008
Posts: 18
Likes: 0
I need to get the slave cylinder fixed. If there is a problem with the motor no need in fixing the slave cylinder if the motor needs to come out. I was going to drop her off at the shop Friday but got called out to work! Maybe I can get her there this Friday!
Get that hooptie running.