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Author
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Topic: blowby oil pushing out?
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N266fords
Gearhead Posts: 1662
From: Sierra Vista ,Az USA
Registered: Apr 2003
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posted 06-15-2004 12:04 PM
 
my 302 is blowing oil out of the dipstick and breather and is also sucking into the pcv. there is no oil in the water or water in the oil. I took the pcv out of the valve cover at idle and removed the dipstick and it is pushing white smoke out of all the openings even the breather. yes the valve covers are baffled. please Help as I am thing rings or blown head gasket. thank you
Bruce
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bluestreek
Gearhead Posts: 1724
From: Athens,GA
Registered: Jul 2001
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posted 06-15-2004 01:48 PM
Poor ring seal is usually the cause of excess blow-by gasses. Combine that with a high volume oil pump and you have oil and fumes going everywhere. I can run my 331 wide open with the PCV removed and it still doesn't smoke or leak a drop. Sounds like your engine may need some attention.  ------------------
1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank, rods and girdle, TFS alum. heads, Stealth 8020 intake, Xtreme 268 Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi.
11.86 @ 116 mph (7.62 @ 93 mph)daily driver!
DanH
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Buster
Gearhead Posts: 1821
From: Hurricane alley
Registered: May 2002
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posted 06-15-2004 05:13 PM
How many miles are on the engine?
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N266fords
Gearhead Posts: 1662
From: Sierra Vista ,Az USA
Registered: Apr 2003
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posted 06-15-2004 06:11 PM
the motor was used when we got the car 10 years ago and it was only started once every 3 months for the last 8 years. and I put it in my stang so I could build my 393 stroker for our red stang and now I am going thru a divorce. so she has my new motor. this bites.
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Fordwiser
Gearhead Posts: 535
From: Metamora, Illinois
Registered: Dec 2000
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posted 06-15-2004 06:12 PM
Another possibility could be a broken piston skirt, this will let the piston rock in the bore, not allowing the rings to seal, will usally happen all of a sudden. High milage factory cast pistons crack pretty easy.Roger
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bluestreek
Gearhead Posts: 1724
From: Athens,GA
Registered: Jul 2001
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posted 06-15-2004 11:07 PM
It's not a death sentence.. just means it's not tight anymore. The rings can sometimes get stuck when an old engine doesn't get ran much. Also the valve seals get hard and stop sealing like they should. It won't hurt to change oil and filter and maybe try a can of RESTORE. Run it awhile and see what happens. You can tear it down and freshen it up when you get bored.  ------------------
1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank, rods and girdle, TFS alum. heads, Stealth 8020 intake, Xtreme 268 Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi.
11.86 @ 116 mph (7.62 @ 93 mph)daily driver!
DanH
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