How to seal between eng/tran tran/pto?

JJHess · Mar 20, 2018

The more I get into fixing the 'little' things on this '53 TO30 to more I get into fixing 'bigger' things. I have a slow drip at the joint of the trans case & PTO case. I have not been able to locate a gasket for that joint (or the engine/trans joint) so I'm assuming there is not a gasket there but some other kind of sealant. I was watching some videos of Ferg's being put back together & in 1 video it looks like the guy used some RTV or other kind of sealant. Is that what is used to seal up the joints in the cases?

I'm thinking I'll take care of those 2 case joints now, plus that lets me get all of the rest of the chocolate milk-like oil cleaned out of the cases.

Brendon Warren · Mar 20, 2018

There is no gasket between the engine and bell housing. There is a seal on the input shaft. There is a weep hole in the bottom to let oil out. There is a gasket between the transmission and differential. It should be readily available. Actually right on this site.

John Deere D · Mar 20, 2018

If you asked 100 Mechanics the question "what adhesive do you use to attach and seal the GASKET / SPACE between the Trans. Housing and the DIFF. Housing"..you would receive 100 answers.

I have applied CONTACT CEMENT to the GASKET FACE as well as the DIFF. HOUSING (follow directions on container) and then attach Gasket to DIFF. HOUSING:

DIFF. HOUSING MUST be free of all and any foreign material, NO OIL or petroleum products on Diff. Housing:

I have applied BLUE RTV Silicone specifically for Automotive use to the AFT of the Transmission housing as well as the matting surface of the GASKET:

The thought is, if the Transmission Housing has to be separated from the Diff. Housing, the gasket should stay attached to the Diff. Housing and separate from the Transmission Housing with out damaging the gasket:

Bob....Replaced Gasket as per above on my TEA-20 and MF FE 35 X...

Charles in Aus. · Mar 21, 2018

It is important to isolate the engine from the alloy casings otherwise electrolysis will corrode the dis-similar metals , the bell and gear box housings will suffer badly otherwise .
It isn't that uncommon to see them crumbling but of course that takes many years to happen . If you want the tractor to outlast you use any sealant that is non conductive . The original product used at the factory for just this purpose was a paste applied to bolts as well as mating surfaces and called ' Titanine ' , many modern marine sealants are suitable alternatives .
Infiltrating water as well as electrolysis contributed to this failure .

JJHess · Mar 21, 2018

Thanks. That is what I was looking for. Is that gasket readily available? I must not be searching for it correctly

RedGreenGuy · Mar 22, 2018

Just bolted my transmission and differential cases together last week. I used "Black RTU" on either side of the gasket

How to seal between eng/tran tran/pto?

JJHess

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Brendon Warren

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John Deere D

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Charles in Aus.

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JJHess

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RedGreenGuy

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