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Farmall & IHC Tractors Discussion Forum
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One at a time

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Carden

12-26-2007 06:08:51




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Merry Christmas! - Well, with the nice weather over the last few days and some regained patience, I decided to dive into the leaks on the M one at a time. Next is the belt drive pulley leak. That one appears to be the most persistent and gets priority. Question: before I pull it off to replace the seal (hopefully thats all it is) How much gear oil am I going to lose when doing this? That is gear oil that"s dripping? I just flushed and replaced with new when I fixed the axle seal. Also, the book called for 16 gallons of gear oil when I changed it. Is it possible some of these leaks became obvious when I put the proper amount in? I know I didn"t drain 16 gallons out.

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Haas

12-26-2007 18:17:23




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 Re: One at a time in reply to Carden, 12-26-2007 06:08:51  
The belt pulley housing holds about a guart I think. It is fed from the transmission, but the oil overflows back to the transmission. If you have not used the belt pulley, or the transmission has not been hot for a while, expect to find some water when you pull out the belt pulley shaft and the assembly. There is not a gasket under the flange that holds the pulley shaft in, just shims to adjust the gear lash. So be sure to put back the shims like you found them and also that they are absolutely clean, or you will still end up with a leak, even with a new shaft seal. To change the seal, you will need a shop press to get the gear and bearings off to change the seal. Everything has to come off the shaft to change the seal. After it is all back together, put a quart of tranny oil in the fill hole on the pulley housing to charge the pulley sump with oil. Any excess will just go back to the transmission.

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Steven f/AZ

12-26-2007 09:00:16




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 Re: One at a time in reply to Carden, 12-26-2007 06:08:51  
There are two drain plugs to pull when changing the rearend/transmission. The big plug in the back, then there is a smaller one in the front.

If you ran kerosene in before draining, some of that was left up in the transmission and is now mixed in with your new gear lube. The kero would thin out your new gear lube, causing some leaks.

Personally, I would drive it around a while to warm up the oil, pull both drain plugs and let it drip overnight. Then re-fill with new gear lube and see if you still have leaks. I prefer to use 85w-140, and you will too if you plan to run the tractor in the winter.

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georgeky

12-26-2007 06:55:51




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 Re: One at a time in reply to Carden, 12-26-2007 06:08:51  
The BP unit won't loose much oil at all. Just a drip or two most likely. Yes some do leak when filled to proper level that may not have before.



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Carden

12-26-2007 07:03:26




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 Re: One at a time in reply to georgeky, 12-26-2007 06:55:51  
Thanks for the info. Could that also be the reason the brake housings suddenly appear to be leaking? This could be the reason for all my previous stress with the sudden leaks happening.



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georgeky

12-26-2007 07:10:59




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 Re: One at a time in reply to Carden, 12-26-2007 07:03:26  
Sure could. They don't leak much if there isn't much oil in them. I neglected to check the rear end in my M a few years back. Was using it to plow tobacco ground with, when it started crying. Ruined the land side axle bearing. While plowing it ran the furrow wheel lower than the land wheel. Was dripping a bit of oil out the lower, so I assumed it was OK. After about 25 acres it was not OK. Cost about 50 bucks for the bearing and 80 for the deck gasket. I watch my oil better now.

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Andy Martin

12-26-2007 07:05:46




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 Re: One at a time in reply to Carden, 12-26-2007 07:03:26  
Pull the plug on the left side of the transmission case and make sure you don't have it overfilled.

Did you drain the transmission and the rear end?



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Carden

12-26-2007 08:01:32




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 Re: One at a time in reply to Andy Martin, 12-26-2007 07:05:46  
I pulled an extra gallon out when checking the fill plug. Looks like I was overfilled. What did you mean about draining the transmission AND rearend? Did I not get everything out and that is why it was overfilled? Now it appears my brakes need to be disassembled to be cleaned after all, huh? Created my own problems...



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Andy Martin

12-26-2007 09:07:13




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 Re: One at a time in reply to Carden, 12-26-2007 08:01:32  
Most of the oil comes out the back, but there is some in the front, little drain plug under the belly.

The seals may need to be replaced, but I'd run it a while and see if it stops leaking. Oil soaked brakes will still hlep you stop unless you are doing a lot of highway driving or pulling heavy loads the brakes may be fine as is.



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Carden

12-26-2007 07:15:25




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 Re: One at a time in reply to Andy Martin, 12-26-2007 07:05:46  
I drained the rear end by getting the front end up on blocks and pulled the rear plug. Before I did this, I ran a few gallons of kerosene in it till it was warm and then drained it. Was that not correct? I'm guessing from your question, I didn't. I'm going out now to make sure the tractor is level and open the plug on the case to verify level. Thanks



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Carden

12-26-2007 06:29:46




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 Re: One at a time in reply to Carden, 12-26-2007 06:08:51  
I misspoke - 13 gallons - not 16.



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