M - upper bolster shaft seal

Ncarolinasailor · Apr 1, 2020

Anyone have any idea how to install the thing? Resting it on a socket on an extension and trying to lift it in to place seems to be futile. Also it is nothing like the original solid piece (it's hollow with a small inner sear).

rustred · Apr 1, 2020

need or make a seal installer.

FBH44 · Apr 1, 2020

My "H" did not have any seals in the bolster, so I bought some at the Case-IH dealer. Mashed them immediately, went back, and the old guy behind the counter said they used to have a seal-install tool, specially for that job. But did not have it any longer.
I invented my own puller, consists of some all-thread, sockets, washers, nuts, a few more washers, some duct tape in there someplace, might have been a piece of dowel rod. {No camera, sorry.]
Designed to pull the seal in smoothly and evenly. Even then, I ruined the first one, bent the second, finally got the third in correctly. Best of luck. Install it so the grease fills up the open U-shape.

Ken Christopherson · Apr 2, 2020

I just did a full bolster rebuild on the H project I am working on. I believe I used my 3/4 drive socket set and found as close a socket as I could to the size of the seal, and this is what I used as the seal puller with some threaded rod. Not ideal, but it worked great. Link to my bolster rebuild video is below.
Farmall H/M Bolster Rebuild Video

caterpillar guy · Apr 2, 2020

Though I have never needed to do this yet. I would find a piece of pipe, about the size of the inside of the seal, or the size of the shaft. Then I would weld a washer/plate to the bottom of it centered. This would work as a guide for the seal to align with the bore and be able to be pulled in straight with the bore. the hole in the washer should fit your pulling bolt. The pipe needs to slide freely in the casting for this. Then can be pushed out the bottom after the seal is pulled in. The pipe and washer would look something like the puck used for pulling in cam bearings. The pipe needs to be oiled or greased and no nicks in the outside running on the seal surface. I would put a piece of tape or some kind of mark on the threads when you get the seal up tight to the casting. This will let you know when the seal is pulled in without crushing it. You will want to measure the thickness of the seal before starting to know how far to pull it.

M - upper bolster shaft seal

Ncarolinasailor

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rustred

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FBH44

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Ken Christopherson

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caterpillar guy

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