Farmall M project update and a question.

txdutchman · Apr 15, 2016

Got # 2 engine all apart. Found why the crankshaft was hard to turn and I guess the reason it was sold.

As you can see it looks kind of rough. I think the journals are ok though.

Got a little buildup on the #4 journal. We think it will polish ok but we need to get a good measurement on it.

My question is about these grooves in the area where the seal runs. Are those supposed to be there? If not would that be caused by a bent shaft?

Thanks!

Curt Cooke · Apr 15, 2016

Quite sure the grooves are to be there. I think they are intended to encourage the oil to move toward the direction of the oil pan, aiding the rear seal in doing its job.

Brian J in MN · Apr 15, 2016

Curt is correct. The grooves are to help keep the oil from going past the seal and leaking into the flywheel/clutch. The rear oil seal consists of two half moon pieces of felt held in place by a aluminum holder.

When you assemble the engine put each half of felt into the halves of the seal holder(they will be almost a quarter inch longer than the holders but do not cut them shorter to fit. If you cut them, aftera while the felt will shrink and the seal will start leaking.

Brian

John M · Apr 15, 2016

Actually, those grooves are there to get a small amount of oil TO the seal, to keep from burning it up.

Tom Dowling · Apr 15, 2016

is that dirt or rust pits on that rear journal?

txdutchman · Apr 16, 2016

It's not rust. Just a little dirty.

txdutchman · Apr 17, 2016

Andrew polished and measured the crank shaft yesterday and it measures within specs! Got bearings ordered for it and soon as we get them in we can make sure it's straight.

Farmall M project update and a question.

txdutchman

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Curt Cooke

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Brian J in MN

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John M

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Tom Dowling

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txdutchman

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