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05-13-2010, 10:35 PM | #1 |
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Join Date: May 2010
Location: Sequim, Wa
Posts: 34
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Cracked Transmission Case
I have a T87D Heavy Duty 3speed truck transmission and the case is cracked at the buldge for the reverse gear. Looks to be a weak casting and is about three inches. It does not seem to be in a vital area that gets stressed but definately seeps solvent as it was discovered during cleaning and overhaul of craigslist find. I have a Wanted post for another but thought I would pick the brains of experience and see if anyone can suggest a fix as part searches can go on forever. Can these things be welded?
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05-14-2010, 01:22 AM | #2 |
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Location: Everett, WA
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Re: Cracked Transmission Case
You might check out Cast Iron Repair Specialists in north Marysville, WA. They do a lot of heads, blocks, etc. (360) 657-7660
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05-14-2010, 06:47 AM | #3 |
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Re: Cracked Transmission Case
In the old days this would have been brazed, not welded. That's easy enough to try at home.
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05-14-2010, 06:54 AM | #4 |
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Re: Cracked Transmission Case
1st. Find out why it cracked. They don't do that on a regular basis.
2nd. I would get another transmission or replacement case. Cast iron repairs are very difficult and never seem to hold up. These transmissions are out there. As a matter a fact there's an ford stake body in the woods on my buddy's property. I'll check and see if it has the transmission. |
05-14-2010, 07:05 AM | #5 | |
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Re: Cracked Transmission Case
Quote:
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John "Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein |
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05-14-2010, 07:46 AM | #6 |
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Re: Cracked Transmission Case
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I would not be afraid to use a properly repaired case but if a replacement case could be located economically I would just replace the case.
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Ross Murphy 1939 Ford Standard Coupe |
05-14-2010, 10:07 AM | #7 |
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Re: Cracked Transmission Case
Read here and google metal stitching.
I have stitched heads and blocks with good results. There are a few different companies. Just a crack in a case would be fairly straight forward.Easy for the home shop not much tooling required.The cost of the pins and kit may be more than a swap meet trans would be. Ronnie |
05-14-2010, 10:28 AM | #8 |
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Location: POUGHKEEPSIE NY 12601
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Re: Cracked Transmission Case
I agree with Ross, year's ago we brazied lots of cast iron parts. I have parts on printing presses that are in use currently that were repaired via brazing many years ago.
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05-14-2010, 01:14 PM | #9 |
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Join Date: May 2010
Location: Sequim, Wa
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Re: Cracked Transmission Case
Thanks for the replies . . . I found a replacement case thanks to Ford Barn Want ads. !!!!! Wow - am I happy. Thanks again to all who read and responded.
Regards Carl |
05-14-2010, 01:29 PM | #10 |
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Re: Cracked Transmission Case
Finding a new case. That sure makes it easy and it means no ticks for me going in the woods.
Best of luck with your project. |
05-14-2010, 01:31 PM | #11 |
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Re: Cracked Transmission Case
Glad you found another case. I just wanted to describe another possible fix for cracks that my high school auto shop teacher described to us for repairing freeze cracks in the sides of old Chevy sixes. Small machine screws were threaded into the cracks spaced about every inch or so. Then sealer such as Bars Leak was added to the radiator. The screws were intended to keep the iron on either side of the crack from moving and breaking the bond of the leak stop. For a transmission case I think you could use the green Loctite for a sealer. I've never had the occasion to do this but I think it would be worth a try.
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