oil problem
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From: riverton u.s
oil problem
I have a 66 F-100 4x4 org 352 in it. The problem is i have all kinds of smoke coming out of the breather cap on the valve covers when i give her some gas. My oil pressure is good. It purrs like a kitten just sitting there. Even when i try to drive it she runs fine but smokes like crazy. checked the oil and its good. I just came back from the deer hunt and i might have pushed her a little hard climbing stuff the 4wheelers were haveing a tuff time making but shes "BUILT FORD TUFF". So do you think the old motor is shot? I sure hope its some thing simple or the wife will start in about my spending money on the old beast
Last edited by jowilker; Oct 9, 2005 at 09:06 AM.
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From: riverton u.s
No i'm not running a pcv valve I havent ran one for a couple of years. I disconected it to use than vacum for the power brakes. So should I go back and install a pcv valve? Also I left it about 10 miles from home. do you think it would be allright to drive it home other than the smoke looking like some kind of smoke screen out of a james bond film.
Fleet Owner
Joined: Jan 2004
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From: Brentwood,CA
well the pcv valve shuld never be removed. if the smoke is that intense. i think you did some enigne damage maybe broke some rings or a piston or the wrist pin. the wrist pin will give off tons of smoke when they fail.
Fleet Owner
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From: Brentwood,CA
nope not at all. check out the fe forum for help. could be as simple as the old valve stem seals broke apart when you pushed the engine to much. if it was a wrist pin you will need a new block.
Laughing Gas
Joined: Oct 2001
Posts: 957
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From: Winchendon MA
You've got massive blow by! Sounds like a busted ring aided by the lack of no PCV.
I doubt it valve seal if it still runs okay as you say it's lots of smoke if it were coming in the intake track it would contaminate the fuel and detonate like crazy.
Was it pinging going up the hills?
If so you could have chipped one or more pistons ring lands or melted the ring land and now have stuck rings.
Time to pull it.
44dwarf
I doubt it valve seal if it still runs okay as you say it's lots of smoke if it were coming in the intake track it would contaminate the fuel and detonate like crazy.
Was it pinging going up the hills?
If so you could have chipped one or more pistons ring lands or melted the ring land and now have stuck rings.
Time to pull it.
44dwarf
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Fleet Owner
Joined: Jun 1999
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From: Creedmoor, North Carolina
I agree, blowby you have, pcv valve you must reinstall. Put the pcv in and see what happens.
John
John
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From: Turlock CA
PCV valve is a good start.
I have pulled my PCV valve and still get little to no blow by. My 352 only has about 51,000 miles on it since the rebuild and is still tite that may be the differance.
I hate giving bad news but it sounds like there may be an overhaul in the future for you.
You may want to start with a compression test. I also changed my valve seals recently but they were not creating blow by just oil consumption.
Good luck.
jd
I have pulled my PCV valve and still get little to no blow by. My 352 only has about 51,000 miles on it since the rebuild and is still tite that may be the differance.
I hate giving bad news but it sounds like there may be an overhaul in the future for you.
You may want to start with a compression test. I also changed my valve seals recently but they were not creating blow by just oil consumption.
Good luck.
jd
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From: riverton u.s
66beater a like the idea. I just wouldnt want to wear the gas mask when ever i drove the truck. So where should i plug the pcv valve in to. just find a open spot on the intake some where. Or run a "T" for my brakes and pcv? Oh one more thing after towing it home ( Wife thought that would be safer) It looks like she might have maybe little to much oil.
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From: Turlock CA
Too much oil would make her smoke.
Also I run my PCV to the base under the carb. I found an article on this site that says when it is hooked to the intake it concentrates the vapor to one or two cylinders and either fouls plugs or gives you a bit of a miss. I moved mine and there was a noticable differance.
You wouldn't happen to have a brake booster on that truck would you. My father had one on my 65 built by Bendix and when it went bad it was injecting brake fluid into the intake and was smoking real bad.
Let us know what you find.
jd
Also I run my PCV to the base under the carb. I found an article on this site that says when it is hooked to the intake it concentrates the vapor to one or two cylinders and either fouls plugs or gives you a bit of a miss. I moved mine and there was a noticable differance.
You wouldn't happen to have a brake booster on that truck would you. My father had one on my 65 built by Bendix and when it went bad it was injecting brake fluid into the intake and was smoking real bad.
Let us know what you find.
jd
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From: riverton u.s
i do have a brake booster on it. Would happen to know where i could get another carb spacer with the vacum hook up on it mine broke a couple years ago. i think i will drain the block and change the oil and see if that helps as well as install a pcv valve. 1 more question can i run 2 valves because with the breather cap no matter how often i change them and the rubber o ring it always spits oil all over. but hey may she spits because i spit the copenhagen on the floor boards lol
Fleet Owner
Joined: Jun 1999
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From: Creedmoor, North Carolina
bocephus, I have a FE in my truck. the pcv goes to the carb. The booster and C6 are run from the passenger side runner on the intake. You might want to look and see if you don't have a plug that you can remove and use.
One pcv valve should do the job. My truck has a vented filler in the drivers side valve cover and the pcv is in the passenger side. This pacement pulls air in through the engine and burns the fumes in the combustion chamber.
You wrote that you busted the carb inlet, what are you using?
John
One pcv valve should do the job. My truck has a vented filler in the drivers side valve cover and the pcv is in the passenger side. This pacement pulls air in through the engine and burns the fumes in the combustion chamber.
You wrote that you busted the carb inlet, what are you using?
John
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