The Ford Barn

Graham Freeman · 07-06-2022, 06:07 AM

I have an oil leak problem on my new restoration.
I have had it sitting for a month without starting and oil is still dripping off the split pin under the sump in the bell housing.
The motor WAS NOT over filled with oil.
It is not coming from the gearbox as the oil level on the dip stick is going down.
I am talking of a quart over the month.
My feeling is a possible crack or faulty spot weld in the sump between the bell housing and the sump itself?
Before I pull the motor, any other suggestions?
Has anyone else encountered this situation?
Graham

Terry,OH · 07-06-2022, 06:54 AM

There was a very recent posting where the plug in the rear of the block oil passage was left out. The plug is just above the cam oil pump gear cover.

Is the oil coming out without running the engine or has the engine been run? What engine and oil pan do you have?

marko39 · 07-06-2022, 07:03 AM

you could pull the pan depending on the difficulty and test for leaks. i agree its the likely suspect as i dont know anywhere else it could be if leaking without running engine.

Bored&Stroked · 07-06-2022, 08:13 AM

If the engine is NOT being run and the oil is still leaking out, then it pretty much HAS to be the oil-pan. I'd pull the pan and inspect it carefully - you'll find the culprit.

Graham Freeman · 07-06-2022, 03:45 PM

The motor is a correct 1934.
The oil pan is correct 1934.
The oil is still coming out without the motor running.
It has not run for a month.

DavidG · 07-06-2022, 05:44 PM

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Best guess is a leak in the oil pan where it meets the flywheel portion of the pan.

Bored&Stroked · 07-06-2022, 06:31 PM

Removal of the oil pan is a bit of a pain (you'll probably have to drop the rear of the wishbone down), but not an extremely hard project. As David noted, there is probably a small leak in the rear portion of the pan (which once identified - can be welded up). The fix won't be that hard - you just need a semi-experienced welder who can weld it without blowing a hole through it.

The key will be finding the leak and REALLY cleaning the pan to get all oil out of it (including any leaking seam area). Quality welds depend on cleanliness.

Graham Freeman · 07-07-2022, 03:36 AM

Thanks guys, hope it is only the sump will update when I have the problem sorted.
Graham

Graham Freeman · 07-21-2022, 01:02 AM

Well guys, pulled the motor out today and as predicted (and hoped for) the leak was caused by some corrosion and seperation around one of the spot welds holding the back portion of the sump to the pan itself.
Sandblasting of the area and some silflos over the spotted and the one alongside as a precaution, testing with a little petrol and no leaks.
Hopefully problem solved.
Now just have to assemble everything again.

Lawrie · 07-21-2022, 01:35 AM

Jeez , I forgot its called silfos,
Long time sine I lived in NZ.
Lawrie

Terry,OH · 07-22-2022, 07:47 AM

What is silfos? For us in the states.

Phil Gillespie · 07-22-2022, 08:53 AM

Quote:

Originally Posted by Terry,OH

What is silfos? For us in the states.

Silfos is a term name for silver solder used in brazing process.
A "down under" term.
Another one being "easy flow".
Phil NZ

07-06-2022, 06:07 AM	#1
Graham Freeman Senior Member Join Date: May 2010 Location: New Zealand Posts: 298	1934 oil leak I have an oil leak problem on my new restoration. I have had it sitting for a month without starting and oil is still dripping off the split pin under the sump in the bell housing. The motor WAS NOT over filled with oil. It is not coming from the gearbox as the oil level on the dip stick is going down. I am talking of a quart over the month. My feeling is a possible crack or faulty spot weld in the sump between the bell housing and the sump itself? Before I pull the motor, any other suggestions? Has anyone else encountered this situation? Graham

07-06-2022, 06:54 AM	#2
Terry,OH Senior Member Join Date: May 2010 Posts: 4,751	Re: 1934 oil leak There was a very recent posting where the plug in the rear of the block oil passage was left out. The plug is just above the cam oil pump gear cover. Is the oil coming out without running the engine or has the engine been run? What engine and oil pan do you have?

07-06-2022, 07:03 AM	#3
marko39 Senior Member Join Date: Oct 2016 Location: harpursville ny Posts: 1,040	Re: 1934 oil leak you could pull the pan depending on the difficulty and test for leaks. i agree its the likely suspect as i dont know anywhere else it could be if leaking without running engine.

07-06-2022, 08:13 AM	#4
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,070	Re: 1934 oil leak If the engine is NOT being run and the oil is still leaking out, then it pretty much HAS to be the oil-pan. I'd pull the pan and inspect it carefully - you'll find the culprit.

07-06-2022, 03:45 PM	#5
Graham Freeman Senior Member Join Date: May 2010 Location: New Zealand Posts: 298	Re: 1934 oil leak The motor is a correct 1934. The oil pan is correct 1934. The oil is still coming out without the motor running. It has not run for a month.

07-06-2022, 05:44 PM	#6
DavidG Senior Member Join Date: May 2010 Location: southeastern Michigan Posts: 10,102	Re: 1934 oil leak Sponsored Links (Register now to hide all advertisements) Best guess is a leak in the oil pan where it meets the flywheel portion of the pan.

07-06-2022, 06:31 PM	#7
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,070	Re: 1934 oil leak Removal of the oil pan is a bit of a pain (you'll probably have to drop the rear of the wishbone down), but not an extremely hard project. As David noted, there is probably a small leak in the rear portion of the pan (which once identified - can be welded up). The fix won't be that hard - you just need a semi-experienced welder who can weld it without blowing a hole through it. The key will be finding the leak and REALLY cleaning the pan to get all oil out of it (including any leaking seam area). Quality welds depend on cleanliness.

07-07-2022, 03:36 AM	#8
Graham Freeman Senior Member Join Date: May 2010 Location: New Zealand Posts: 298	Re: 1934 oil leak Thanks guys, hope it is only the sump will update when I have the problem sorted. Graham

07-21-2022, 01:35 AM	#10
Lawrie Senior Member Join Date: May 2010 Location: Qld, Australia Posts: 4,221	Re: 1934 oil leak Jeez , I forgot its called silfos, Long time sine I lived in NZ. Lawrie

07-22-2022, 07:47 AM	#11
Terry,OH Senior Member Join Date: May 2010 Posts: 4,751	Re: 1934 oil leak What is silfos? For us in the states.