1959 Cub stuck in reverse

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Grandhose
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1959 Cub stuck in reverse

Postby Grandhose » Tue Apr 28, 2015 8:38 pm

Some sort of plug dropped out of the bottom of the drive train (bottom of the bell housing just behind the engine), and all the oil drained from it (gear oil?). I don't know if it is directly related, but it is now stuck in reverse. I've had 3 people familiar with the tractor tell me it does that sometimes (get stuck in reverse, not drain all of its gear oil) and to remove the shifter plate to fix it. I did, but now do I simply replace the shifter with it in the "reverse" position, and it will work again? And how do I keep that from repeating?

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Re: 1959 Cub stuck in reverse

Postby Bob McCarty » Tue Apr 28, 2015 9:24 pm

When you take the shifter off, you'll see two forks that the end of the shifter ball fits into. You probably have a loose or broken fork that will need tightening or replacement. Neutral is where the two forks are adjacent to each other and about 1/3 of the way forward from the back edge. And welcome to the forum.

Bob
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we need to think differently."
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Grandhose
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Re: 1959 Cub stuck in reverse

Postby Grandhose » Tue Apr 28, 2015 9:32 pm

Thanks, I'll take a look at that tomorrow.

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Mr E
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Re: 1959 Cub stuck in reverse

Postby Mr E » Tue Apr 28, 2015 9:55 pm

This picture might help you see the position.


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Re: 1959 Cub stuck in reverse

Postby Glen » Wed Apr 29, 2015 2:14 am

Hi,
The pic above is not showing most of the shift forks, which are on the right, not sure if it looks different on other computers.
Here is a page from the Cub service manual showing the transmission with the shifter off. Click on the pic makes it bigger. :)

http://www.farmallcub.info/manuals/gss- ... 006-06.jpg

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Re: 1959 Cub stuck in reverse

Postby Bill E Bob » Wed Apr 29, 2015 5:44 am

If I'm reading your post right, you may have lost an expansion plug that is in front of the shifter rod in the transmission casting. (Drained gear oil) Should that be the case, you have a bigger job than just removing the shifter plate. Unfortunately, you will have to split the tractor at the transmission, roll back the rear end assembly, replace the expansion plug and reassemble. Can't recall any expansion plugs in the engine oil galleys that would end up in the bell housing, hence the speculation regarding the transmission. I expect there will be some others chime in with diagrams and pictures regarding the expansion plugs in the transmission (if my theory is correct).

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Re: 1959 Cub stuck in reverse

Postby Mr E » Wed Apr 29, 2015 5:50 am

Oops. Sorry. The picture got cropped by the forum software.
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Jim Becker
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Re: 1959 Cub stuck in reverse

Postby Jim Becker » Wed Apr 29, 2015 9:56 am

Bill E Bob wrote:If I'm reading your post right, you may have lost an expansion plug that is in front of the shifter rod in the transmission casting. . . .

I read it that the hand hole cover fell off and it dumped an accumulation of oil from the bell housing. We need clarification. Whatever the source and cause, the amount of oil that comes out the bottom of the bell housing shouldn't be a huge volume, just enough to make a huge mess.

Grandhose
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Re: 1959 Cub stuck in reverse

Postby Grandhose » Wed Apr 29, 2015 2:54 pm

No, it wasn't a large volume. But it wasn't a handhole cover. That appears to be further back. It is a small - maybe 1" diameter or smaller - hole. I'm not liking the sound of splitting the tractor and all that goes with it. I'm not that handy as a mechanic. I figured I would become more proficient as I tackled small jobs.

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Re: 1959 Cub stuck in reverse

Postby Bob McCarty » Wed Apr 29, 2015 3:07 pm

You thought gear oil. Are you sure it was from the transmission, or could it be motor oil from the engine (rear engine seals commonly leak) ? The engine takes 3 1/2 qts while the tranny takes 3 1/2 pints. Would you guess it was 1/2-1cup full that drained out or more or less? If you could post a picture of the hole (and tranny forks) it will be easier to diagnose the problems.

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Grandhose
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Re: 1959 Cub stuck in reverse

Postby Grandhose » Wed Apr 29, 2015 3:20 pm

I'll upload pictures when I get home, but the engine oil level is full. It seemed to be at least a cup that drained out after pulling it up onto a trailer to trasport it home. Thought it was motor oil at first so I shut it down quickly. But it was out of the hole behind the engine (bottom of bell housing). The expansion plug diagnosis seems to make sense if there is one located in the center-bottom of transmission housing.

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Re: 1959 Cub stuck in reverse

Postby Larry G » Wed Apr 29, 2015 3:56 pm

If oil accumulates in the low spot in the torque tube it will get sucked out the hole he is talking about when towing it on the trailer. Happened to me.

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Re: 1959 Cub stuck in reverse

Postby Stanton » Wed Apr 29, 2015 5:58 pm

Hmmmm....

1. New-to-you Cub owner.
2. Has a Cub project that he's never done before.
3. Lives in/around Kimper, KY.
4. And is only 230 miles from the upcoming Barnyard Bash CufFest held in Harrison, OH.

Sounds like a slam dunk. You need to load that Cub up on a trailer and head to the Barnyard Bash on May 29th and 30th. There, you'll get expert advice on how to split and repair your Cub, get hands-on help, and meet new friends.

For more info, see here: http://www.barnyardbash.com/
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Grandhose
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Re: 1959 Cub stuck in reverse

Postby Grandhose » Wed Apr 29, 2015 8:40 pm

I'm sure there's a way to make the photos taken with my iPad smaller, but that's a problem for another forum I suppose. For now, no pictures. But my gear box looks just like the photo that was posted earlier. As for the hole, is it insane to consider drilling a slightly larger hole an tapping it for a threaded plug?

Bob McCarty
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Re: 1959 Cub stuck in reverse

Postby Bob McCarty » Wed Apr 29, 2015 9:03 pm

I would suggest you figure out what should be in the hole before you start making any alterations. Did you wiggle the forks to make sure neither is loose or broken?

Bob
"We don't need to think more,
we need to think differently."
-Albert Einstein


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