The Ford Barn

bgalla · 08-04-2019, 03:59 PM

My 31, stock, completely restored 10 yrs ago with absolutely no significant problems. Yesterday (warm here 95) I first noted the car heating up more than normal, then white oil smoke out the tail pipe. Stopped at a friends shop and opened the passenger hood and oil everywhere. Thought it was the oil tube or plastic oil gauge tube but both ok. Took off the air filter and oil coming out the carb. The engine still runs. No bad noises. Checked the dip stick, still plenty of oil. Started it again and sure enough----oil from the carb. Where is the most likely breach???? Someone must have seen this before. Thanks anyone Bruce

whirnot · 08-04-2019, 04:04 PM

Oil smoke is blue. White smoke is water.

bgalla · 08-04-2019, 04:14 PM

Thanks ---no water problems there definitely is an oil problem. Smoke is blue-white.

F.M. · 08-04-2019, 04:15 PM

Blown head gasket.

Marshall V. Daut · 08-04-2019, 06:01 PM

Check your private messages on this website.
Marshall

Chuck Sea/Tac · 08-04-2019, 06:20 PM

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I would say, if you have oil coming out of the carburetor and burning oil smoke, you have a cracked block, most likely in around an intake valve. Bad news. Pull the manifolds and valve cover and check. Also do a leak down test first.

Synchro909 · 08-04-2019, 06:40 PM

Has the motor been over hot any time? I agree with the comment that it could be a cracked block and the vacuum is sucking oil into the inlet passages. If you're lucky, it might only be a blown head gasket

ryanheacox · 08-04-2019, 07:57 PM

Rather than a cracked block maybe a very worn valve guide or two?

Mike V. Florida · 08-05-2019, 01:35 AM

Quote:

Originally Posted by Chuck Sea/Tac

I would say, if you have oil coming out of the carburetor and burning oil smoke, you have a cracked block, most likely in around an intake valve. Bad news. Pull the manifolds and valve cover and check. Also do a leak down test first.

Quote:

Originally Posted by ryanheacox

Rather than a cracked block maybe a very worn valve guide or two?

These are my guesses as well.

Bob-A · 08-05-2019, 07:10 PM

I don't mean to hijack the thread.

But, I use Marvel Mystery Oil in my '31 roadster. And most of the time I feel the bottom of the carb before I open
the gas petcock, car is a late '31. You know checking for leakage. Usually I find a little what feels like the Marvel oil?!?

Car runs great with no smoke. Am I just putting to much Marvel oil in the gas?

Using the Marvel oil took care of a vapor lock problem I had.

Bob-A

Synchro909 · 08-05-2019, 10:09 PM

Quote:

Originally Posted by Bob-A

I don't mean to hijack the thread.

But, I use Marvel Mystery Oil in my '31 roadster. And most of the time I feel the bottom of the carb before I open
the gas petcock, car is a late '31. You know checking for leakage. Usually I find a little what feels like the Marvel oil?!?

Car runs great with no smoke. Am I just putting to much Marvel oil in the gas?

Using the Marvel oil took care of a vapor lock problem I had.

Bob-A

Even if you were using straight gasoline, there would be an oily residue left as the more volatile fluids evaporate off. Doesn't sound to me like you have anything to worry about.

TerryH · 08-05-2019, 10:51 PM

For MMO they recommend 4oz per 10 gallons of gas....

30 Closed Cab PU · 08-06-2019, 09:17 AM

Here is another string about MMO. Includes adding MMO through the vacuum fitting port on the intake manifold for a quicker fix of sticky valves.

https://www.fordbarn.com/forum/showt...+sticky+valves

Doing a search on sticky valves provides lots of info

08-04-2019, 03:59 PM	#1
bgalla Member Join Date: Aug 2011 Location: Chico,Ca Posts: 72	oil out of the carburetor My 31, stock, completely restored 10 yrs ago with absolutely no significant problems. Yesterday (warm here 95) I first noted the car heating up more than normal, then white oil smoke out the tail pipe. Stopped at a friends shop and opened the passenger hood and oil everywhere. Thought it was the oil tube or plastic oil gauge tube but both ok. Took off the air filter and oil coming out the carb. The engine still runs. No bad noises. Checked the dip stick, still plenty of oil. Started it again and sure enough----oil from the carb. Where is the most likely breach???? Someone must have seen this before. Thanks anyone Bruce

08-04-2019, 04:04 PM	#2
whirnot Senior Member Join Date: Mar 2013 Location: Bend Or. Posts: 1,056	Re: oil out of the carburetor Oil smoke is blue. White smoke is water. __________________ Bill Worden 1929 Roadster 1929 Briggs Town Sedan 1930 Closed Cab pickup Smith Motor Compressor 1951 Ford F1 High Desert Model A's

08-04-2019, 04:14 PM	#3
bgalla Member Join Date: Aug 2011 Location: Chico,Ca Posts: 72	Re: oil out of the carburetor Thanks ---no water problems there definitely is an oil problem. Smoke is blue-white.

08-04-2019, 04:15 PM	#4
F.M. BANNED Join Date: Sep 2017 Posts: 385	Re: oil out of the carburetor Blown head gasket.

08-04-2019, 06:01 PM	#5
Marshall V. Daut Senior Member Join Date: Apr 2011 Location: Davenport, Iowa Posts: 2,105	Re: oil out of the carburetor Check your private messages on this website. Marshall

08-04-2019, 06:20 PM	#6
Chuck Sea/Tac Senior Member Join Date: May 2010 Location: Between Seattle & Tacoma Posts: 2,354	Re: oil out of the carburetor Sponsored Links (Register now to hide all advertisements) I would say, if you have oil coming out of the carburetor and burning oil smoke, you have a cracked block, most likely in around an intake valve. Bad news. Pull the manifolds and valve cover and check. Also do a leak down test first.

08-04-2019, 06:40 PM	#7
Synchro909 Senior Member Join Date: Jun 2014 Location: Melbourne, Australia Posts: 7,489	Re: oil out of the carburetor Has the motor been over hot any time? I agree with the comment that it could be a cracked block and the vacuum is sucking oil into the inlet passages. If you're lucky, it might only be a blown head gasket __________________ I'm part of the only ever generation with an analogue childhood and a digital adulthood.

08-04-2019, 07:57 PM	#8
ryanheacox Senior Member Join Date: Apr 2013 Location: Northwest CT Posts: 1,092	Re: oil out of the carburetor Rather than a cracked block maybe a very worn valve guide or two?

08-05-2019, 07:10 PM	#10
Bob-A Senior Member Join Date: May 2010 Location: Central FL, USA Posts: 1,137	Re: oil out of the carburetor I don't mean to hijack the thread. But, I use Marvel Mystery Oil in my '31 roadster. And most of the time I feel the bottom of the carb before I open the gas petcock, car is a late '31. You know checking for leakage. Usually I find a little what feels like the Marvel oil?!? Car runs great with no smoke. Am I just putting to much Marvel oil in the gas? Using the Marvel oil took care of a vapor lock problem I had. Bob-A

08-05-2019, 10:51 PM	#12
TerryH Senior Member Join Date: May 2010 Location: Fountain Valley, Calif. Posts: 937	Re: oil out of the carburetor For MMO they recommend 4oz per 10 gallons of gas....

08-06-2019, 09:17 AM	#13
30 Closed Cab PU Senior Member Join Date: Aug 2018 Posts: 2,332	Re: oil out of the carburetor Here is another string about MMO. Includes adding MMO through the vacuum fitting port on the intake manifold for a quicker fix of sticky valves. https://www.fordbarn.com/forum/showt...+sticky+valves Doing a search on sticky valves provides lots of info

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