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302/347 stroker choofing ??? 

 

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 Post subject: 302/347 stroker choofing ???
Posted: Fri Jul 25, 2008 8:21 pm 
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ive recently had my 302 windsor stroked to 347 with head work and cam.
it has some choofing out of the oil filler cap when i take it off and oil in the intake manifold when i took it of. some people have suggested catch cans?? could the problem be something else??
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Posted: Fri Jul 25, 2008 10:09 pm 
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Problem appears to be blowby. Basically it seems you comp rings have not sealed and as such you are getting oil into your TB via the PCV. A catch can will help, but i would look at getting it sorted properly. Check comp etc
Brett

 

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Posted: Mon Jul 28, 2008 7:03 pm 
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^^That sounds like a nightmare! :shock:

 

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Posted: Mon Jul 28, 2008 7:41 pm 
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Sounds to me like the rings haven't bedded in correctly... Seems to be a bit of this happening in WA at the moment.

 

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Posted: Thu Jul 31, 2008 10:11 pm 
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so what about a liittle bit of oil in the intake is that normal?

Greg

 

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Posted: Thu Jul 31, 2008 11:55 pm 
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may just be that the rings havnt bedded in yet rather than not in properly

i always expect blow by to some extent and most engines on the road will chuff out of the oil filler cap to some extent

same with the oil in the intake manifold unless its fresh i wouldnt worry just chuck some carby cleaner in the throttle body every now and then

by that i mean carby cleaner bought from repco in the aresol can type stuff

remove the intake hose start the engine and spray in while holding the throttle open slightly while running open or close while spraying enough to keep it running

dont rev to hard or you may cause valve bounce with that stuff spraying in

not the whole can either just enough

i usually do it before every plug change its like a tuneup in a can


that usually cleans out oil from the intake manifold
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Posted: Sun Aug 03, 2008 4:14 pm 
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what you mean by choofing?

 

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Posted: Mon Aug 04, 2008 11:45 am 
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How many ks has it done and who built it?

 

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Posted: Mon Aug 04, 2008 3:53 pm 
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I've heard of kids having a choof in the garage, but never an engine!

 

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Posted: Mon Aug 04, 2008 8:53 pm 
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The engine has done about 83000 ks before the rebuild its only barely done 1000ks new. Kosteki built the engine. its had a cylinder leakage test and cylinders 1 and 3 have about 70% leakage. they say it could be a head gasket or maybe worse... bottom end! were pulling the heads of this week to have a look!.
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Posted: Mon Aug 04, 2008 9:56 pm 
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mmm sounds no good at all... but with an engine that fresh u would expect it hasn't been bedded in properly?

 

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Posted: Tue Aug 05, 2008 1:22 pm 
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Rings should have bedded in within 35minutes of running nowadays... Kostecki's have an engine dyno, why not make use of it and get the engine bedded in correctly?

 

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Posted: Tue Aug 05, 2008 5:20 pm 
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Waggin wrote:
I've heard of kids having a choof in the garage, but never an engine!

Haha very nice :D

 

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Posted: Tue Aug 05, 2008 5:41 pm 
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so what is choofing?

 

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Posted: Tue Aug 05, 2008 6:00 pm 
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^^It's a bogan word for puffing.

 

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