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PSI

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Old Mar 22, 2008 | 11:02 PM
  #1  
nitrousd85's Avatar
nitrousd85
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From: Big OH
Default PSI

what is stock psi per cylinder on a 5.0
i ran a compression test pulled 150 psi per syl. is this normal or what should it be for a car at 200k let me know
Thanks
Old Mar 22, 2008 | 11:05 PM
  #2  
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mjr46
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Default RE: PSI

for 200k that's not all that bad
Old Mar 22, 2008 | 11:13 PM
  #3  
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nitrousd85
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From: Big OH
Default RE: PSI

ok i was going to re ring it but instead i will just give her some new rod and main bearings oil pump pick up
thanks fella
Old Mar 22, 2008 | 11:23 PM
  #4  
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mjr46
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From: West Virginia
Default RE: PSI

well if you have the motor out and apart..it wouldn't hurt to do so...if there is a ridge on the top of the cylinder wall cut it with a ridge reamer and hone it and install new rings....that's if it's out and apart
Old Mar 22, 2008 | 11:28 PM
  #5  
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Default RE: PSI

Do a leak down test to see "how sealed up your engine is"

Compression test is to see if cylinder builds pressure while moving
Leak down test puts pressure on the cylinder and makes sure everything is sealed ( ie rings and valve seats. )

http://www.toolhawker.com/Cylinder-L...tem_35486.html
Old Mar 23, 2008 | 09:15 AM
  #6  
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nitrousd85
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From: Big OH
Default RE: PSI

yes i pulled the heart out pulled the heads the ridge was like a grease i simply wiped it away still had good cross hatchings left in it
had like a metallic look to the oil wasnt sure what that was figured it was normal wear
Old Mar 23, 2008 | 09:34 AM
  #7  
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mjr46
D.R. THE PATHETIC DORK
 
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Posts: 30,871
From: West Virginia
Default RE: PSI

heck since it's apart...hone it and put some new rings in....won't hurt it= cheap insurance too!!
Old Mar 23, 2008 | 09:49 AM
  #8  
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nitrousd85
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From: Big OH
Default RE: PSI

with like a dingle ball hone i also have a set of arp main studs and wave loc pro rod bolts
to install should i let the rods and pistons set over nite in kerosene or chuck em in the parts washer and scrub em up
my car takes a metric file fit ring correct
Old Mar 23, 2008 | 12:37 PM
  #9  
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backfire2007
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Default RE: PSI

hell if you have it apart you oughta put some forged pistons inn there incase of any future boost
Old Mar 23, 2008 | 01:17 PM
  #10  
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nitrousd85
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From: Big OH
Default RE: PSI

already have forged pistons
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