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end play

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SGT K

01-16-2004 10:16:43

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How much end play should my brake shafts have on my H? I took the brake cover and brake band off, then the dum. The splined shaft has at least a 1/16 of an inch end play. That seems like a lot. Just to check I took off the other side, all most as much.

Also, has anyone replaced the seal on this shaft without tearing into the transmission? The seal is about 3/4 of an inch thick and I bet it doesn't come out without a fight.

Thanks in advance, I'm alittle scared to start pry'n, hammer'in and pulling. I have had a habit of tearing up more than I fix. ;]

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01-16-2004 20:44:50

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Re: end play in reply to SGT K, 01-16-2004 10:16:43

Don't remove the shims. They are for setting the ring gear and pinion mesh and backlash. Check the end play with the drum installed because it clamps the outer bull pinion bearing against a shoulder on the shaft. If you still have to much end play replace the bearing.

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SGT K

01-17-2004 06:42:22

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Re: Re: end play in reply to Ed, 01-16-2004 20:44:50

Ed, I was wondering about that. I was going to try it, but I had a feeling it might not change my end play on my brake shaft. I'm having a hard time grasping just how this housing should be, even though I'm sure its simple to a lot of people. Your post helps-the drum clamps the outside bearing-but my bearing looks and feels good after I have it out. I can't figure out why I have so much (end play), it seems like it ought to be obvious. Anyway,,,,Thanks for your help, I do appreciate it.

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01-17-2004 22:05:07

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Re: Re: Re: end play in reply to SGT K, 01-17-2004 06:42:22

It's been 3 or 4 years since I've been into one of these so I got out the books. After looking at the pictures I was partly wrong before. The drum does clamp the bearing but that won't control the end play. Actually, I can't see anything that positivly controls end play except the pinion gear being contained between it's bearing in the housing and the differential carrier.

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Aces

01-16-2004 12:46:28

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Re: end play in reply to SGT K, 01-16-2004 10:16:43

When new no end play having said that. You have an old tractor, bearing could be bad housing could be bad shaft could be bad, but it is all in the out side bearing or where the bearing fits on shaft or in the housing. Digging the seal out is how some housing end up bad, but it can be done. You can't remove the pinion housing without moving the bull gear, but that can be done through the PTO hole, remove the axel cap bush the axel out and pull the bull gear back and to the other side as best as you can. Go slow with the pinion housing to see that it does not catch the bull gear.

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SGT K

01-16-2004 13:20:00

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Re: Re: end play in reply to Aces, 01-16-2004 12:46:28

Aces,
Thanks a million!! I never would have thought of going through the PTO housing. When you say axel cap, do you mean the seal housing on the end of the axel housing by the wheel that is held on by four 3/8 bolts? Or do you mean the complete cast axel housing. (Its probably pretty evident that I have not had the rear end of a Farmall apart)

I have several tin shims on the outside of my brake shaft housing. When I get the housing out I'm going to try and remove one or two, and see if that helps my end play.

Thanks again.

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rebuilder

01-16-2004 17:10:30

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Re: Re: Re: end play in reply to SGT K, 01-16-2004 13:20:00

Sarge;
We have used this procedure several times to fix inner axel bearings as well. It saves taking deck plates off. As you suspected, the axle cap IS the seal retainer held with four bolts. This also is a retainer for the outer axle bearing. Getting it apart is not to bad, take bolt out of bull gear and slide axle out. As aces said much care is needed to protect the bull pinion cage. There is not a lot of room but it is doable. I would recommend a buddy to help you put it back together though. It can be a son-of-gun to get the bull gear lined up with the splines on the axle, while making sure the bull gear is engaged fully into the bull pinion. Our axle had a bur or something on the spline and boy did that drive us nuts for a while. We got it on though. Just use a lot of patience! Since you are working on an H the hardware will not be near as heavy as an M or Super M. Also; while you are in the rear I would take off the other bull gear to make sure the Inner axle bearing is not going out. If you have any more problems/questions get back to us.

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To Acesrebuilder

01-16-2004 19:59:48

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Re: Re: Re: Re: end play in reply to rebuilder, 01-16-2004 17:10:30

I got the bull pinion out! Boy, that saved me a lot of extra work. I couldn't seem to get my axle to slide by taking off the axle cap though. I went ahaid and removed the entire axle housing. The older I get, the more hesitant I am to beat and really pry on things, which is probably a good thing.

The old seal on my bake shaft was alomost 3/4 of an inch thick. The new IH seal is now just a tin seal with a rubber lip. What do you think about putting two of these seals in and packing grease between them? I remember rebuilding a Bushhog this way when the old seal substituted to two identical ones, which were to be installed together.

Rebuilder, that's a good idea, I will take the other side apart. Besides, this is great fun!

Thanks again,
SGT K

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42FarmallH

01-16-2004 10:55:14

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Re: end play in reply to SGT K, 01-16-2004 10:16:43

I changed out my seals without removing anything else. Takes patience, prybars, a puller, chisels, etc. But it can be done...

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SGT K

01-16-2004 13:23:52

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Re: Re: end play in reply to 42FarmallH, 01-16-2004 10:55:14

Thanks, it makes me a little more confident knowing someone else has done it. More than once, I have tore more up trying to fix something.

I think I'll try ACES idea though, and see if I can eliminate so end play. I have quite a lot on both sides.

Thanks again

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