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Hole next to drain plug on trans.

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Rich Schmitt

12-18-2001 14:20:50




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Have a 51 8n there is a hole nocked in the cast housing right behind the drain plug. Im wondering if i can weld a patch over the hole with a 110 flux core welder or i am open to any suggestions on other non welding ways of patching the hole.Any help would be appreciated.




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Dave Smith

12-19-2001 04:30:06




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 Re: Hole next to drain plug on trans. in reply to Rich Schmitt, 12-18-2001 14:20:50  
Rich, How good is the rest of the tractor? Engine, Hydrolics ETC. If it is worth the time and money I would look for a new case. Edward Shafer in Coba NY would have one. Check out the bone yards in you're area. If that is out of line with you're wallet The next approach would be to have it welded. That also would be expensive due to the complexity of welding cast. You could check out the thickness of the material around the hole to see if you have enough material to drill and tap it. If it is thick enough you could form a metal patch to cover the hole. Drill and tap the case and install the patch with short bolts and good sealer. Be sure the bolts do not hit anything inside. You would not have to remove it or strip it for that. If the material is not thick enough you might have to remove it strip it out and attach the patch with through bolts. Again being sure there is clearance for the bolts. In the storys on the left a guy did that to a engine block that a rod went through. Let us know how you make out. Dave <*)))><

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Ultradog MN

12-18-2001 16:54:17




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 Re: Hole next to drain plug on trans. in reply to Rich Schmitt, 12-18-2001 14:20:50  
Probably the best way to fix it permanently is to Braze a patch made of cast iron into the hole. Grind a piece to approximately fit the same shape and contour. Once it's painted you would never know. And it's double tough!
You can even fix engine blocks that way.
The trouble is you need to preheat most of the rest of the casting ie. tranny and that would require tearing it down and rebuilding it.
Maybe the next best way to fix it is to likewise
grind and fit a piece of cast iron and arc weld it into place using a special (read $8/stick special) high nickel content rod. You need to do a lot of peening and some pre/post heating but you wouldn't have to tear down the tranny. Probably at least have to be able to turn it upside down though.
You could also try making some sort of a non permanent patch out of something like JB Weld.
Or you could do a Frankenstein thing like Ed has
which would probably last a long long time.
I would do any of the above before I went at it with a wire feed of any sort.
BTW... Hey Ed
Your patch is like the guy filling his old worn out rear tires with concrete. I loved it for it's cleverness but was apalled at the same time.

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ED-Illinois

12-19-2001 01:25:30




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 Re: Re: Hole next to drain plug on trans. in reply to Ultradog MN, 12-18-2001 16:54:17  
So I am suposed to put concrete in my differential?

(grin)



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ED-Illinois

12-18-2001 14:29:23




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 Re: Hole next to drain plug on trans. in reply to Rich Schmitt, 12-18-2001 14:20:50  
My 1946 2N has a patch just behind the differential drain plug. It is a square piece of rubber, roughly 4" x 4" x 3/8", with machine screws all around the perimeter at about 3/8" o.c.

Looks like it came off of Frankenstein, but it works. If I press on the center of the patch an outline of the hole underneath it can be seen.

Maybe a previous owner tried to put a swinging drawbar on the differential housing.

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