my engine failed leak down test!!
so i found out why my valve cover was leaking oil..
leaky rings on 2 or 3 of my pistons, I forget the exact #'s but something like 65-80%. NOT GOOD.
the leak was allowing boosted air back into the crankcase & pressurize it.
now the good news. Its time to build!!!
off we go.....
leaky rings on 2 or 3 of my pistons, I forget the exact #'s but something like 65-80%. NOT GOOD.
the leak was allowing boosted air back into the crankcase & pressurize it.
now the good news. Its time to build!!!
off we go.....
How about some more info.....
What kit?
What boost?
What engine managment?
Was the motor detonating?
AFR?
HP?
Injector size?
etc etc etc.....
Respect
JET
What kit?
What boost?
What engine managment?
Was the motor detonating?
AFR?
HP?
Injector size?
etc etc etc.....
Respect
JET
Last edited by JETPILOT; Feb 27, 2006 at 07:23 PM.
Originally Posted by JETPILOT
How about some more info.....
What kit?
What boost?
What engine managment?
Was the motor detonating?
AFR?
HP?
Injector size?
etc etc etc.....
Respect
JET
What kit?
What boost?
What engine managment?
Was the motor detonating?
AFR?
HP?
Injector size?
etc etc etc.....
Respect
JET
375hp, 325tq, stock injectors. no noticable detonation
engine was/is running fine, no noticable loss of power, just lots of oil squeezing out of the valve cover at the spark plugs wells, due to leakage into the crank...
Last edited by baileyrx; Feb 27, 2006 at 08:02 PM.
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hey bailey, i'm the guy you got the ati from, lol. don't feel bad, i had broken ring lands on 4 pistons and 5 visibly bent rods, hahhaa. yes from the same exact ati kit. and yes it was good news to me also as it gave me the excuse to build the motor at that point.
you plan on keeping the ati or moving to turbo?
you plan on keeping the ati or moving to turbo?
Originally Posted by baileyrx
probably turbo, then i'll sell this kit to another member i hope
do you have alot of chatter from the arias pistons?
do you have alot of chatter from the arias pistons?
West Chester Nissan in PA has had several engine replacements in 350's with very high leak through. Always in cyl #2. One of the techs told me it was because these owners were not changing their oil for unknown miles.
I'm not trying to say you didn't change your oil enough, but maybe your engine was fuel washing the cylinder walls or something. What cylinders were leaking?
I'm not trying to say you didn't change your oil enough, but maybe your engine was fuel washing the cylinder walls or something. What cylinders were leaking?
[QUOTE=baileyrx]ati procharger, 7lbs, ati's stock set-up with j&s, smooth a/f high 10's, low 11's
bailey:
With that A/F ratio, it sounds like too much timing. How did you have your J&S set up?
bailey:
With that A/F ratio, it sounds like too much timing. How did you have your J&S set up?
Originally Posted by baileyrx
probably turbo, then i'll sell this kit to another member i hope
NOOOOOOOOOOOOO
(sorry, couldn't help myself)
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