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H Trans Fluid

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Vince-WI

10-28-2003 13:09:47

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I have a 1940 H that the transmission locks up in the winter time. I can move the shift lever left & right but can't get into gear right away. Once you pop it down into 1st, then you can get it into reverse, same for 2nd & 3rd, 4th & 5th. From reading previous posts here I must have water in my transmission.

Sunday I planned to change the fluid, I opened the drain in the rear under the pto and maybe a pint drained out. It was like my kids chocolate milk, but very much like syrup. I also opened the drain in the front, just behind the lift-all and just a tiny bit came out there also.

Have I been running my tractor with only a pint of fluid when there should be 6 gallons? Or am I missing something?

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Fred

10-29-2003 04:34:39

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Re: H Trans Fluid in reply to Vince-WI, 10-28-2003 13:09:47

I have a tractor that I bought for parts that has a small hole in the trans. case that water got in. A few days ago I took out the PTO shaft and the oil is like grease in a grease gun. It will not come out at all. If yours has had the water in it for a long time it may be like that. Take the PTO out like the other man said and then wash it out with diesel fuel. You will want to look at the bearings to see if they have rusted. If you look in there and it is gummed up really bad you might want to take the top off the trans. and clean it out really good. It is not that bad a job and could save you a lot of money later. Good luck.

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Michael Soldan

10-28-2003 15:31:35

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Re: H Trans Fluid in reply to Vince-WI, 10-28-2003 13:09:47

Vince, Rusty Farmall is correct, that drain hole could be all clogged up and there is more sludge in there. You can dump a gallon of diesel fuel or varsol in the tranny at the fill hole beside the gear shift lever. Drive the tractor around for a while till it is good and warmed up, you won't hurt the tranny just driving around, then pull the drain plug and use a device to unclog the area around the drain hole. Also check under neath the rear end and make sure there are no cracks in the housing. These can be welded by professionals if necessary. Ice in a tranny could cause a problem if someone tried too hard to move the tractor. In one H I bought I drained over a gallon of watere out of the rear, my other H had the worst sludge you coulld imagine. I don't advertise for anyone but I found Walmart had the best by on rear gear oil at about $29 for a 5 gallon pail. Good luck, slush it out, fill it up and the H will be fine....Mike in Exeter Ontario

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rustyfarmall

10-28-2003 13:53:17

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Re: H Trans Fluid in reply to Vince-WI, 10-28-2003 13:09:47

I can't imagine your tractor would run very long with only a pint of oil in the case. I am guessing that the rearend is completely full of sludge. You could poke a stiff wire or something in through the rear drain hole and fish around, or, what I would do, remove the P.T.O. unit, that will give you a large hole to shine a light into and take a look around.

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Vince

10-28-2003 14:00:04

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Re: Re: H Trans Fluid in reply to rustyfarmall, 10-28-2003 13:53:17

Thank you fo ryour reponse. If it is full of sludge, then what? How do I get the sludge out?

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Bob M

10-29-2003 06:52:13

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Re: Re: Re: H Trans Fluid in reply to Vince, 10-28-2003 14:00:04

Vince - Here's what I'd recommend:

Chock the front wheels then jack up the rear end so both wheels are free to turn. Block/crib under the drawbar bracket or the axle castings - DON'T leave the tractor on a jack!

Remove the filler plug on the transmission deck and dump in as much diesel fuel or kerosene as it will hold. If the tranny is really empty it'll take at 10+ gallons to fill completely - if there's sludge it will of course hold less.

Next fire up the engine, put the transmission into road gear and open the throttle all the way. Also engage the PTO and if the tractor has a belt pulley, put that into gear too. Now go have a coffee (or a beer�) leaving the tractor running to give the diesel time mix with/dissolve the sludge.

Finally shut it down and immediately remove the drain plug. If nothing comes out, poke a broom handle or something into the drain opening to break thru the sludge (stand back!) Also loosen the belt pulley gear box and let it drain.

Unless the sludge is impossibly congealed, one or two treatments of the above should get it out.

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Rick (MN)

10-29-2003 17:47:56

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Re: Re: Re: Re: H Trans Fluid in reply to Bob M, 10-29-2003 06:52:13

Bob is right on the money as usual. The only thing I do differently is I like to hit it with the torpedo heater and add a couple quarts of ATF for the detergent factor when I flush them out. The heat seems to really help break up the sludge.

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