Oil pan leak

CSK · Dec 7, 2009

Hi all,
I have a farmall m that was recently rebuilt and after I installed the oil pan it had a leak between the pan and the block at the left front corner. I later removed the pan, cleaned and reinstalled it. It still has an oil leak in the same spot. The pan does not appear to be bent and I used silicon and a cork gasket both times. I tightened the bolts starting in the center and working to the ends. I would like to paint the tractor this spring but obviously want to stop the leak first. Does anyone have any recommendations on gaskets, sealants or anything I may be doing wrong in installing? This is my first tractor project and I would appreciate any help.
Thanks,
Cory

Owen Aaland · Dec 8, 2009

(quoted from post at 00:56:42 12/08/09) Hi all,
I have a farmall m that was recently rebuilt and after I installed the oil pan it had a leak between the pan and the block at the left front corner. I later removed the pan, cleaned and reinstalled it. It still has an oil leak in the same spot. The pan does not appear to be bent and I used silicon and a cork gasket both times. I tightened the bolts starting in the center and working to the ends. I would like to paint the tractor this spring but obviously want to stop the leak first. Does anyone have any recommendations on gaskets, sealants or anything I may be doing wrong in installing? This is my first tractor project and I would appreciate any help.
Thanks,
Cory

Remove the pan and take a real good look from the inside at the area that leaks. Most likely you will find a crack. They can usually be successfully repaired by brazing.

williamf · Dec 8, 2009

As Owen said, it might not be the gasket.
The oil cup on my H was leaking just enough to keep it damp ever since I got it. For a couple of years I worked on the clamp that holds it on and tried every way to seal it better that I could think.
One oil change day I had it off to clean it, happened to hold it just so and saw a speck of light. A tiny pin hole in the bottom. I washed it with Dawn, dried it well, and put a spot of JB Weld. Never another seep.
Wm

Marty K · Dec 8, 2009

My wife and I traded tractors one afternoon for fun and when I pulled up alongside her as she sat on my 450, I noticed a steady tiny stream of oil draining out the bottom of the oil pan. Removal and inspection revelaed a couple of deep rust pits from water standing at the bottom of the pan. A couple had eventually gone clear through. I brazed it all up and have not had any more trouble.

Oil pan leak

CSK

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Owen Aaland

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williamf

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Marty K

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