help engine smoking alot!!!!!

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Oct 22, 2006 | 08:56 PM

93f-250

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help engine smoking alot!!!!!

Hey everyone, i got a 93 f-250 with a 351w and about a month ago i was on the highway when i started pouring smoke out and found out the problem was a bad vavle cover gasket so i replaced both sides. drove it for a little smoke didnt pour out but when ever u stopped it would come outa the hood. and now it back to billowing smoke out. i tightened all the bolt down good and also it stalls out sometimes if i have the wheel turn all the way at idle???? my air box and filters are both soaked in oil and i cant find the leak anywhere but it smells like burning oil but the smoke is white????I was wondering if anyone would have any ideas as to whats wrong with it.. its getting very fustrated!!!!! anyhelp would be great thanks
anthony

Oct 23, 2006 | 09:22 AM

Kemicalburns

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From: Bend,OR

replace your pcv valve. how many miles on the motor? inspect your plugs for oil or lean condition.

Oct 23, 2006 | 07:52 PM

Tom Christo

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smoky

Had that happen to me and it was blow by from the oill filler tube to the breather box (89 f250) .
I ran a hose out the bottm of the truck to keep from ruining the filter. The problem for me is still unsolved but I also lost a cyllinder and am assuming that I lost the rings or got a hole in the piston. the blow by is from positive crankcase pressure needing somewhere to go .
I replaced the fouled spark plug from that cylinder and it smoked like crazy until the plug fouled and quit firing. Still smoked, but not as bad.
In the process of changing motors now and will break down the old one later to determine what the cause was exactly.

Oct 23, 2006 | 11:23 PM

nighthawk285

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From: La Grande, OR

Yep, thats what happened to mine (1987 F-150), just driving down the highway, and for no reason, just started smoking. #8 plug was all oil fouled and half missing (detonation....bad gas) fouled, had absolutely no compression in the cylinder. When I took the head off, there was a hole about 3/4 of an inch, 4" around the outside of the piston. Yeah, bad news. $900, a month, and a junkyard 351W later, I was a happy man.

Oct 28, 2006 | 03:21 PM

93f-250

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well replaced the pcv vavle and it did not help. looks like oil is leakin onto the collect to were the manifold and pipe start. but i cant figure out were its leakin from

Oct 28, 2006 | 04:22 PM

nighthawk285

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From: La Grande, OR

do a compression test. the cylinder without any compression will be most likely where its coming from. If you're getting oil, its either blowby from the piston rings, or a hole in the piston itself. once you do that, it should just be a matter of pulling the head.

Oct 28, 2006 | 05:14 PM

93f-250

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i dont have a compression tester/gauge and kinda really dont want to spend ne more time on tryin to figure the problem out. I'm gonna sell the truck as is. Hopefully i can something for it.