Transmission HELP!

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DanielV2
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Transmission HELP!

Postby DanielV2 » Sat Feb 28, 2015 6:49 pm

I was working on the '49 today hoping to take it for its first drive. I got the oil pressure regulator un-stuck and figured I was ready to take it for a spin. I climed up to the seat post, no seat yet, and tried to put it in gear. I could not get the transmission to go into any gear. The shift leaver moved freely around the neutral position. I took the shift leaver and transmission cover off and the transmission was full of water and stuff the consistency of grease. Upon there recomendation of some threads I read, I put in some diesel and flushed out some of the gunk, however; the transmission was still stuck. After further research, I sprayed the rails down with PB blaster and began tapping them back and forth with a small ball peen hammer and a piece of wood. I was concentrating my force on the bolts holding the forks on. I achieved about 1/8th of an inch movement in each direction but no more. I am going to read through the manuals tonight to see what I need to do next. Any recomendations would be greatly appriciated.

One other thing I observed that I wanted to ask about. I had the cub running with the transmission cover off and the central shaft/gears were rotating. When I depresed the clutch, this shaft/gears did not stop spinning? Should they?

Daniel V

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John *.?-!.* cub owner
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Re: Transmission HELP!

Postby John *.?-!.* cub owner » Sat Feb 28, 2015 7:01 pm

Yes, everything should stop when the clutch is down. Since this has been setting quite a while the clutch may be sticking. As to moving the shift forks, try wiggling the gears to see if the binding is in the gears and shaft or the rails. In this area I would suspect ice, but I assume it is not that cold there.
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DanielV2
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Re: Transmission HELP!

Postby DanielV2 » Sat Feb 28, 2015 7:11 pm

No John, the tempurature is quite nice down here :) Another thread I read said something about using a large screw driver...would that be to move the gears back and forth?

Daniel V

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John *.?-!.* cub owner
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Re: Transmission HELP!

Postby John *.?-!.* cub owner » Sat Feb 28, 2015 7:19 pm

Large screw driver normally used if the shifter has slipped out of place and you need to move the forks back to neutral. You could use it to see if the gears are free on the shafts though. Are both forks stuck? If the oil was milky indicating water in the oil, the rails and housing may be rusty.
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Re: Transmission HELP!

Postby danovercash » Sat Feb 28, 2015 8:21 pm

What John said! Trans may be in neutral, but shifter ball outside rails. Make sure both rails are in neutral and ball is in center and see what happens.
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tst
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Re: Transmission HELP!

Postby tst » Sat Feb 28, 2015 8:34 pm

can you shift the transmission when the cub is not running?, if you can the clutch is the issue, if not transmission has problems
Tim

DanielV2
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Re: Transmission HELP!

Postby DanielV2 » Sat Feb 28, 2015 9:27 pm

I cant move the shift lever when the engine is off. According to the pics I have seen here, it is in neautral, the forks are lined up. There was a fair amount of water in the transmission when I drained it. I can see that the gears are a little rusty. I will work on them with the screwdriver tomorrow. I will also make sure the ball is between the forks.

Daniel V

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Re: Transmission HELP!

Postby danovercash » Sat Feb 28, 2015 9:31 pm

Will the tractor roll when in "neutral"? If not trans is in two gears at once.
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DanielV2
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Re: Transmission HELP!

Postby DanielV2 » Sat Feb 28, 2015 10:29 pm

danovercash wrote:Will the tractor roll when in "neutral"? If not trans is in two gears at once.


It rolls freely. Drug it into the shop befor starting to work on it.
Daniel V

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Re: Transmission HELP!

Postby coppersmythe » Sun Mar 01, 2015 5:39 am

Daniel , I'm over in walker , if there is any way you could bring it to buddys cubfest in bogaslusa this coming weekend (march 6-7) , I'm sure they can get ya up and running . you will have a blast , good food , and the finest folks you'll ever meet . if not , I could stop by after the fest on Saturday and take a quick look . I'm not a tranny expert , but I can look inside it and say hmmmm . :roll: coppersmythe...............

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Re: Transmission HELP!

Postby John *.?-!.* cub owner » Sun Mar 01, 2015 8:55 am

By your description I suspect rust is your problem. Most likely slider gears rusted to the shaft they are setting on.
If you are not part of the solution,
you are part of the problem!!!

DanielV2
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Zip Code: 70401
Location: Hammond, LA

Re: Transmission HELP!

Postby DanielV2 » Sun Mar 01, 2015 9:12 am

I am leaning more and more to the gears rusted onto the shaft. I can see the rails moving a small amount in both directions. I have been spraying the shaft down with penatrant and wigling back and forth with a screwdriver. The whole shaft moves but not the gears. I think I might load it up and take it to Bogalusa this weekend!

Daniel V

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Re: Transmission HELP!

Postby tst » Sun Mar 01, 2015 10:04 am

John is correct, the top gears in the shift forks are rusted to the shaft, keep oiling and prying on them to work them free
Tim

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Re: Transmission HELP!

Postby Jim Becker » Sun Mar 01, 2015 12:41 pm

If it is as rusty inside as it sounds, you probably should consider finding a whole transmission to replace it. A decent transmission shouldn't be that hard to find. Your existing one will probably have a few good parts to salvage.

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Re: Transmission HELP!

Postby Barnyard » Sun Mar 01, 2015 1:15 pm

Jim Becker wrote:If it is as rusty inside as it sounds, you probably should consider finding a whole transmission to replace it.

I agree with Jim. You will probably also have bearings rusted together.

However, since you are only an hour from Bogalusa, you should haul it up there next week end for a look over. Won't cost you anything but gas to get one of the guys to take a quick look.
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