Leaking rear differential

umfan11244 · Jan 5, 2018

Hey all - I have a 1954 850. It appears to be leaking from the bottom side of the differential (pictured). I can't seem to find what part this is (to order a gasket) and I don't know if I'm good to just remove all 4 bolts and pull it off. Any help is appreciated!
<image src="http://forums.yesterdaystractors.com/photos/mvphoto8674.jpg"/>

Michaels Dad · Jan 5, 2018

(quoted from post at 17:20:55 01/05/18) Hey all - I have a 1954 850. It appears to be leaking from the bottom side of the differential (pictured). I can't seem to find what part this is (to order a gasket) and I don't know if I'm good to just remove all 4 bolts and pull it off. Any help is appreciated!
<image src="http://forums.yesterdaystractors.com/photos/mvphoto8674.jpg"/>

Those four holes are blind holes and have nothing to do with rear differential oil.

umfan11244 · Jan 5, 2018

Got it, thank you. Another member messaged me and told me I could remove them. I currently have them all pulled out and the
area is completely clean. Waiting to see where the oil is coming from, unfortunately it's below 30 degrees here in South GA so
I may have some waiting to do.

Dean · Jan 5, 2018

The four bolts attach the swinging drawbar bracket to the differential housing.

The bolt holes are blind but if bolts that are too long have been used it is possible that the thin cast iron has been punched through, allowing oil to leak past the threads.

Remove the bolts one at a time to see if oil comes out. If it does, you may be able to stop the leak with silicone gasket sealer on the threads.

Dean

riveroadrat · Jan 5, 2018

You will also get a leak if someone put bolts that are too long for the drawbar hanger. I drain the oil low enough for the leaking bolt, clean it with starting fluid and use a thread sealant.

Dean · Jan 6, 2018

Tighten the trumpet nuts to specified torque.

Do not overtighten.

Dean

showcrop · Jan 6, 2018

(quoted from post at 16:30:52 01/05/18) Got it, thank you. Another member messaged me and told me I could remove them. I currently have them all pulled out and the
area is completely clean. Waiting to see where the oil is coming from, unfortunately it's below 30 degrees here in South GA so
I may have some waiting to do.

The guy that messaged you must be bashful

. My experience is that it is usually a drain plug.

Sean in PA · Jan 6, 2018

It's hard to tell from the picture, but it looks like the drain plug may be cross threaded and in crooked.

Leaking rear differential

umfan11244

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