Hi,
Hamilton Bob's, at the bottom of the page, sells new shifter forks.
He sells 154, 185, and 184 parts, but I have read on here people have put the shifter forks in Cubs also.
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48 Knock in 2nd
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- Glen
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- Dadsfarmalls
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Re: 48 Knock in 2nd
I made an intro video for the 48, I did a part where I ran it in 2nd and you can hear the noise its making. You can skip ahead in it if you don't want to listen to me yap
- Glen
- 10+ Years
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- Joined: Mon Mar 19, 2012 7:33 pm
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Re: 48 Knock in 2nd
Hi,
Good video about the Cub.
Part of the looseness in the steering could be the steering arm setscrews are loose and need tightening.
The arms are at the right and left ends of the front axle.
You probably need another person to sit in the seat, and turn the steering wheel to check for looseness.
With the Cub stopped, and the wheels straight ahead, turn the steering wheel through it's free play, and look at the arm and shaft, if it looks loose, the setscrew needs tightening.
Loosen the lock nut a turn or so, and remove the setscrew, and see if the end of it looks good.
There is a pic of one below.
The end of the setscrew is tapered, and fits into a tapered hole in the shaft.
If it is good, put it back in, and tighten it, have someone turn the steering wheel back and forth a little while you tighten the setscrew.
Tighten the lock nut when done.
That is a sort of common thing on that style of steering arms, they loosen from use, and need checking, and to be kept tight.
Sometimes the tapered end of the setscrew breaks off in the hole, if that has happened, write and tell us, and we can give you info about how to fix that.
TM Tractor has new setscrews.
Below is a pic from TM Tractor of a steering arm and setscrew.
Good video about the Cub.
Part of the looseness in the steering could be the steering arm setscrews are loose and need tightening.
The arms are at the right and left ends of the front axle.
You probably need another person to sit in the seat, and turn the steering wheel to check for looseness.
With the Cub stopped, and the wheels straight ahead, turn the steering wheel through it's free play, and look at the arm and shaft, if it looks loose, the setscrew needs tightening.
Loosen the lock nut a turn or so, and remove the setscrew, and see if the end of it looks good.
There is a pic of one below.
The end of the setscrew is tapered, and fits into a tapered hole in the shaft.
If it is good, put it back in, and tighten it, have someone turn the steering wheel back and forth a little while you tighten the setscrew.
Tighten the lock nut when done.
That is a sort of common thing on that style of steering arms, they loosen from use, and need checking, and to be kept tight.
Sometimes the tapered end of the setscrew breaks off in the hole, if that has happened, write and tell us, and we can give you info about how to fix that.
TM Tractor has new setscrews.
Below is a pic from TM Tractor of a steering arm and setscrew.
- Urbish
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Re: 48 Knock in 2nd
You looked at the gears on the trans input shaft, but did you inspect the gears they mate to on the output shaft? This really sounds like you have missing teeth on the 2nd gear set.
Jim
- Dadsfarmalls
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Re: 48 Knock in 2nd
Im trying to get out to look at it again between tornado sirens. I noticed that when i have it shifted in to 2nd gear, that the rail has play in it front to back, so the 2 3 moves about a 16th of an inch I would guess, is that normal?
- Dadsfarmalls
- Cub Star
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- Joined: Tue Jan 07, 2020 12:33 am
- Zip Code: 61081
- Tractors Owned: 1945 Farmall M
1948 Farmall Cub
1955 Farmall 200
1965 IH Cub
Re: 48 Knock in 2nd
Well I've looked the gears over about 4 times today, the ones on the top shaft and the ones on the bottom. I can't find any broken off teeth, worst damage I can find are the dings on the few teeth of the 2/3 gear that can be seen in the first pic that I posted. I guess I can drain the trans and and look to see if there are any teeth on the bottom, or if there is something I'm missing.
I cleaned out that top drain hole today also.
Thanks Glen for the front tire info, I'm adding it to my list.
I cleaned out that top drain hole today also.
Thanks Glen for the front tire info, I'm adding it to my list.
-
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Re: 48 Knock in 2nd
Have you inspected and been through those front wheel bearings?
The only sound I can try to imagine (listening to vid.) is a fan blade or shroud. Followed by a valve or something. Sometimes sound gets transferred and is not always where suspected from...
Maybe the Cub was strained hard in second once. Or twice , and mesh is a little off.(?)Seems like teeth on a gear would show color or brightness wear marks...Or teeth shaped different than stock on the ends/tips.
Not recommending you chase that by adding a heavy lube with low throw off to see if it quiets... and then having to change it out again. But that's where I'd lean if I couldn't leave it as is and further visual inspections of gears,shafts,and linkages don't turn up the culprit.
Keep an eye out for a slightly bent shaft too. It could bind or clash slightly more on one side of a gear than the other.
The only sound I can try to imagine (listening to vid.) is a fan blade or shroud. Followed by a valve or something. Sometimes sound gets transferred and is not always where suspected from...
Maybe the Cub was strained hard in second once. Or twice , and mesh is a little off.(?)Seems like teeth on a gear would show color or brightness wear marks...Or teeth shaped different than stock on the ends/tips.
Not recommending you chase that by adding a heavy lube with low throw off to see if it quiets... and then having to change it out again. But that's where I'd lean if I couldn't leave it as is and further visual inspections of gears,shafts,and linkages don't turn up the culprit.
Keep an eye out for a slightly bent shaft too. It could bind or clash slightly more on one side of a gear than the other.
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