H Countershaft.........

Goose · Jun 29, 2016

Is lug on the front of the countershaft that drives the hydraulic pump on an H what the book refers to as the "nut on the front of the countershaft"? Assuming it is, does it turn counter-clockwise to remove?

Thanks in advance for any answers.

Zachary Hoyt · Jun 29, 2016

Yes to both.

Goose · Jun 29, 2016

Thanks. Just wanted to make sure before I started cranking on it.

Stands to reason that a tractor without a hydraulic pump would have a regular nut on the shaft.

CenTex Farmall · Jun 29, 2016

Right hand thread. The hydraulic pump end is too.

I'm actually in the middle of changing those seals on a '43 H. Coupler in serious need of a rebuild too.

rustyfarmall · Jun 30, 2016

Quickest, easiest way to remove that nut is to build an adapter that fits an impact wrench.

Goose · Jun 30, 2016

This is a 1941 H. I'm going through the entire transmission.

It started with the input pilot bearing failing, then when I got into it just about all of the bearings need to be replaced. The gears look pretty much OK.

However, the bolt that holds the input pilot bearing snapped off in the main shaft and I can't get the stub out, so it looks like I'll need to round up a different main shaft. (The stub of the bolt was soft enough to drill through, but an easy out won't budge it). I know a local fellow who has a number of assorted H's and M's torn down, and a few other sources including eBay, but I'll wait until I have a complete list of parts before I start rounding them up.

CenTex Farmall · Jul 1, 2016

That's a bummer.

If it's gotten to the point of replacing, I would take a chance at drilling to the thread root diameter and working the threads out with a pick. I've done that on different snapped bolts in the past with better than 75% record of success. Sneak up on the root diameter with several drilling steps.

Another possibility is if a local machine shop has a lathe with a large enough spindle bore to accomadate the pinion gear and having them do the operation. Depending on the rate though it may cost more than replacement if the guy is reasonable on parts.

Goose · Jul 1, 2016

I thought about using successively larger bits, but I don't want to take the chance of messing up the threads. Once I put it together, I don't want to have to go back into it.

I may run it past a local machine shop. The most they can do is say "no".

H Countershaft.........

Goose

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Zachary Hoyt

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Goose

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CenTex Farmall

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rustyfarmall

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Goose

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CenTex Farmall

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Goose

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