Help with tranny repair

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fl9018
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Help with tranny repair

#1

Post by fl9018 »

Here is a picture of my tranny after being welded up. Some idiot tried to press out the race from the wrong way and blowing out the backside and mainshaft area. I had it welded back together and re-machined for an oversize race. I did this before learning that you don't weld up transmission cases. Will I be riding on borrowed time with this type of repair?

Thanks in advance.

Frank
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Re: Help with tranny repair

#2

Post by Cotten »

Frank!

I see nothing alarming in the photo (other than the peacock heat signature and sprocket wear upon the main drive gear).

If your welder was skilled, and the machinist was carefull, it should do fine.

Does it turn through smoothly, without bind on either the shaft or the gear?

.....Cotten
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Re: Help with tranny repair

#3

Post by fl9018 »

It does turn smoothly. It shifts good too sitting in the frame. I just needed to have assurance that it won't grenade when I take it for it's long overdue ride.
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Re: Help with tranny repair

#4

Post by RUBONE »

There are hundreds (if not thousands) of welded up tranny cases in use with no problems. Who told you not to weld a tranny case?
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Re: Help with tranny repair

#5

Post by fl9018 »

I must've read it on another forum. The case was broken into 3 to 4 pieces so I had a welder put it back together without skimping on the welding rods. I re-machined the mainshaft area and re-decked it where the lid goes on.
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Re: Help with tranny repair

#6

Post by john HD »

i have one in my '55 that was repaired before i bought it in the '80's.

it has seen continous use since then.

john
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Re: Help with tranny repair

#7

Post by Cotten »

fl9018 wrote:I must've read it on another forum. ...
fl9018!

It used to be that we got our misinformation from the next belly up to the bar.

It's a bigger bar now.

....Cotten
Caveat: Since you did the machinework, and certainly would have observed any welding issues, the responsibility if it fails falls no where else.

So I'd bet you're good to go.
(What have you to lose now?)

Still wonder about the peacock colors on the gear, though.
Not that they are a problem necessarily, but how they occurred.

I might suspect a "supernut"!
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Re: Help with tranny repair

#8

Post by Huck »

whoever made that repair, cared.
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Re: Help with tranny repair

#9

Post by RUBONE »

Most of the factory gears I have are 'peacock" colored somewhere on the gear, a by product of the heat treating process....
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Re: Help with tranny repair

#10

Post by old.wrench »

To produce those particular oxide colors (the peacock colors) you need to heat that area of the shaft to around 550 -650 F., maybe even a little higher depending on the alloy. My guess is that it's simply from tempering after hardening during the heat treat process.

Geo.
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Re: Help with tranny repair

#11

Post by Huck »

I'll bet somebody gave it hell with a torch trying to get the nut off once upon a time. The treads don't look great, maybe just need cleaned up.
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Re: Help with tranny repair

#12

Post by 1962FLH »

Outstanding job on the case repair; you did good work. I noticed the discoloring on the end of the main shaft as well as the high gear.

John
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Re: Help with tranny repair

#13

Post by 58flh »

I agree with the other men!--Very-Nice job on the mixer case!/--Nice machine work to!,--Now go & enjoy your overdue fun!---Respectfully---Richie
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