The Ford Barn

DJ S · 07-04-2015, 05:52 PM

Well we did it! My grandpa and I purchased our fourth Model A despite our lack of resources. We spent the entire day yesterday dragging this car out of a very small one car garage. Once we got it home we couldn't get it to run with it's current carburetor (it was leaking where the upper half and lower half attach) so we swapped it out with a carburetor we knew was good and continued to try different things in order to start it. In the midst of the process we blew up the old battery (oops). But we eventually got it started to find a massive oil leak in the rear of the motor. What could be causing this leak?

Mike · 07-04-2015, 06:08 PM

Rear main bearing drain tube missing !!

Mike

colin1928 · 07-04-2015, 06:22 PM

Quote:

Originally Posted by Mike

Rear main bearing drain tube missing !!

Mike

X2
sometimes if they have sat for a long time the old sludge seams to block the rear main drain

DJ S · 07-04-2015, 06:32 PM

I hope this is the source of the problem but the previous owner had a similar problem as he had a "diaper" to collect this steady flow of oil.

1crosscut · 07-04-2015, 06:57 PM

One of the members of my club purchased a 29 five window coup a couple months ago and it leaked copious amounts of oil. Turns out the drain tube was never installed. New tube now installed and it doesn't leak a drop. Hope yours is that simple.

bunnyc · 07-04-2015, 08:27 PM

Sponsored Links (Register now to hide all advertisements)

I don't have an oil leak, just reading this thread. Where's the rear main drain tube? I imagine it can be accessed after dropping the oil pan?
Just something to look for in the future...

kenparker · 07-04-2015, 08:56 PM

I did some major engine repair on an engine out of an AA - couple weeks ago. Massive oil leak. Not a drip - it was a constant run the diameter of a baall point pen barrel. MASSIVE. Problem turned out to be Poor installation of Rear main Shims, Poor installation of Cork Seal in Rear Main Cap, poor installation of Pan Gasket - the tabs under the Cork Gasket had been cut off and one new gasket on top of a torn old one, Lots of RTV that had turned loose, and more than .006 clearance on the Main Bearing.

Rear Main Drain Tube was still intact and NOT stopped up.

Point is. Rear main Leakes can be a multitude of previous problems - check them all.

Mike V. Florida · 07-04-2015, 09:52 PM

A good place to start;

http://www.antiqueenginerebuilding.c...RMAINLEAK.html

BILL WILLIAMSON · 07-04-2015, 10:25 PM

Remember, most garage/barn finds are worn out old jalopies that were given up on, a LOOOONG time ago!!!
Kudos to you for just being able to make it run!!!---NO SMALL FEAT!!!
Bill W.

DJ S · 07-04-2015, 10:48 PM

In case anyone was wondering what it looked like

and yes we have all the missing parts and plus some

Mike V. Florida · 07-04-2015, 10:55 PM

Quote:

Originally Posted by DJ S

In case anyone was wondering what it looked like

and yes we have all the missing parts and plus some

Very nice!!

Benson · 07-05-2015, 07:55 AM

The problem might be as simple as a restricted or plugged up breather/filler tube.

1. A plugged tube will drain the oil pan in about 70 miles or less.

Well the example I am thinking of; the oil was changed and at 70 miles the engine locked up!

Someone had installed a green plastic "pot cleaner" in the breather tube from their old engine in their new rebuilt engine.

The pot cleaner from the old engine was clogged.

2. Breather cap might have been smashed down on the breather tube blocking the breather.

mshmodela · 07-05-2015, 09:33 AM

Quote:

Originally Posted by DJ S

In case anyone was wondering what it looked like

and yes we have all the missing parts and plus some

Nice find, well worth making it a driver

TinCup · 07-05-2015, 10:06 AM

If the car has been sitting for a long time I would always drop the pan and change the oil before ever trying to start it. Once you have dropped enough pans and seen the sludge that settles you sure don't want to be trying to push that through the pump and the rest of the motor. Lot's of good information here on the barn for rear main leaks so take a few minutes and do some searching. Good luck!

Big hammer · 07-05-2015, 06:25 PM

Nice car work on one problem at a time and soon you will be dating in it :-) and if she does not want to ride in it find another --------- girl that is!

07-04-2015, 05:52 PM	#1
DJ S Senior Member Join Date: Aug 2014 Location: Southwick, MA Posts: 598	Engine Leak Well we did it! My grandpa and I purchased our fourth Model A despite our lack of resources. We spent the entire day yesterday dragging this car out of a very small one car garage. Once we got it home we couldn't get it to run with it's current carburetor (it was leaking where the upper half and lower half attach) so we swapped it out with a carburetor we knew was good and continued to try different things in order to start it. In the midst of the process we blew up the old battery (oops). But we eventually got it started to find a massive oil leak in the rear of the motor. What could be causing this leak?

07-04-2015, 06:08 PM	#2
Mike Senior Member Join Date: May 2010 Location: ASTON, PA. Posts: 725	Re: Engine Leak Rear main bearing drain tube missing !! Mike

07-04-2015, 06:32 PM	#4
DJ S Senior Member Join Date: Aug 2014 Location: Southwick, MA Posts: 598	Re: Engine Leak I hope this is the source of the problem but the previous owner had a similar problem as he had a "diaper" to collect this steady flow of oil.

07-04-2015, 06:57 PM	#5
1crosscut Senior Member Join Date: Feb 2011 Location: Lincoln, Nebraska Posts: 2,011	Re: Engine Leak One of the members of my club purchased a 29 five window coup a couple months ago and it leaked copious amounts of oil. Turns out the drain tube was never installed. New tube now installed and it doesn't leak a drop. Hope yours is that simple. __________________ Dave / Lincoln Nebraska

07-04-2015, 08:27 PM	#6
bunnyc Senior Member Join Date: Apr 2015 Location: KY Posts: 296	Re: Engine Leak Sponsored Links (Register now to hide all advertisements) I don't have an oil leak, just reading this thread. Where's the rear main drain tube? I imagine it can be accessed after dropping the oil pan? Just something to look for in the future...

07-04-2015, 08:56 PM	#7
kenparker Senior Member Join Date: May 2010 Location: Van, Texas Posts: 1,122	Re: Engine Leak I did some major engine repair on an engine out of an AA - couple weeks ago. Massive oil leak. Not a drip - it was a constant run the diameter of a baall point pen barrel. MASSIVE. Problem turned out to be Poor installation of Rear main Shims, Poor installation of Cork Seal in Rear Main Cap, poor installation of Pan Gasket - the tabs under the Cork Gasket had been cut off and one new gasket on top of a torn old one, Lots of RTV that had turned loose, and more than .006 clearance on the Main Bearing. Rear Main Drain Tube was still intact and NOT stopped up. Point is. Rear main Leakes can be a multitude of previous problems - check them all.

07-04-2015, 09:52 PM	#8
Mike V. Florida Senior Member Join Date: May 2010 Location: Florida between Sarasota and TampaSouth Florida Posts: 14,054	Re: Engine Leak A good place to start; http://www.antiqueenginerebuilding.c...RMAINLEAK.html __________________ What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II

07-04-2015, 10:25 PM	#9
BILL WILLIAMSON Senior Member Join Date: Dec 2010 Location: FRESNO, CA Posts: 12,560	Re: Engine Leak Remember, most garage/barn finds are worn out old jalopies that were given up on, a LOOOONG time ago!!! Kudos to you for just being able to make it run!!!---NO SMALL FEAT!!! Bill W. __________________ "THE ASSISTANT GURU OF STUFF"

07-05-2015, 07:55 AM	#12
Benson Senior Member Join Date: May 2010 Location: Cen~Col - Central Highlands Posts: 2,757	Re: Engine Leak The problem might be as simple as a restricted or plugged up breather/filler tube. 1. A plugged tube will drain the oil pan in about 70 miles or less. Well the example I am thinking of; the oil was changed and at 70 miles the engine locked up! Someone had installed a green plastic "pot cleaner" in the breather tube from their old engine in their new rebuilt engine. The pot cleaner from the old engine was clogged. 2. Breather cap might have been smashed down on the breather tube blocking the breather. Last edited by Benson; 07-05-2015 at 08:09 AM.

07-05-2015, 10:06 AM	#14
TinCup Senior Member Join Date: May 2010 Location: OKC / Tonkawa, Ok. Posts: 1,977	Re: Engine Leak If the car has been sitting for a long time I would always drop the pan and change the oil before ever trying to start it. Once you have dropped enough pans and seen the sludge that settles you sure don't want to be trying to push that through the pump and the rest of the motor. Lot's of good information here on the barn for rear main leaks so take a few minutes and do some searching. Good luck! __________________ Oklahoma City Model A Restorers Group.

07-05-2015, 06:25 PM	#15
Big hammer Senior Member Join Date: Jun 2014 Location: Land of Lincoln Posts: 3,431	Re: Engine Leak Nice car work on one problem at a time and soon you will be dating in it :-) and if she does not want to ride in it find another --------- girl that is!