More Dumb 2800 Questions

I know this is subjective and I'm probably going to be opening a can of worms anyway, but here's the deal.

Bought a used eninge off of a running combine; just came out of the corn field. Prior owner says that the only thing that he knows that is wrong with it is that the front crankshaft seal is leaking. Forgot to ask him the hours on the machine.

Is this going to be an easy 'external' repair or is it indicative of wobbled front main bearing? Do I have to go inside to replace that seal?

If so, guess I'll just replace the inserts while I'm in there. Which will probably lead to a set of sleeves. Which will probably lead to head work. Which will probably lead to pump work.

Any way I can call this whole deal off? :>)

Thanks,

Allan

As far as the front seal, it can be replaced from the outside, but it ain't easy. That seal is a two piece deal with the inner part turning with the crank and the outer held by the front cover. Because of this it is made from heavier metal than an ordinary seal would be. Just makes it hard to pick out or pull with metal screws. Can be done though.

It appears from the picture that the injection pump is original, most of the time if they are rebuilt they are reinstalled without paint. Not a fact, merely an observation. I would guess if the pump hasn't been rebuilt, the engine doesn't have too awful many hours on it.

If the cooling system looks like it has been maintained (no rust in the system and clean fresh anti freeze) I would think you could make a go of it.

DISCLAIMER: This advice is worth exactly what you paid for it! (-:

Paul

Gotta tell ya, in the past two weeks I've sure ran into an awfully lot of nice guys who do the Allis thing.

Really is nice to talk to you fellas.

I've had a lot of Allis combines, but can't ever remember having an engine problem. Not one. Just took 'em for granted. They just always kept right on a runnin', year after year after year. :>)

So, if I'm understanding you right, you're saying the seal "can be" done from the outside, but that it would be "much easier" if the cover was pulled?

Is this what you mean to say?

Allan

"So, if I'm understanding you right, you're saying the seal "can be" done from the outside, but that it would be "much easier" if the cover was pulled?

Is this what you mean to say?"

Yep!

Paul

There is one other thing I need to mention..... .although red is NOT my favorite color, I have enjoyed all of your trials and tribulations with your tractors and equipment.

I was an AC dealer a long time ago and sold a ton of 190xt's, 7040 & 60's, and model F combines up through the N series. I really believe there was not a better machine built than a Model FKS, before or since.

Couldn't keep up with Mr. Carters inflation and interest rates, and had to give it up in the early eighties.

Keep us Allis guys posted with some pictures of your progress, we'll help all we can.

Paul

The dealer called this morning and they are bringin' the semi out on Wednesday morning and my personal "vendetta" will begin.

Heck! I wasn't this excited when I bought the old rascal the first time. :>)

First order of business is to fix that gaping hole under the engine area. Think a walker crank must have tried it’s darnedest to exit the wrong way because there is a new, unused front crank in the machine and a “farmer” patch over the hole.

Also think that the prior owner at that point threw his hands in the air and gave up because neither sprocket is on that front crank and there is not a walker anywhere to be seen. Luckily, I found a set with the replacement engine. :>)

Oh well, that hole will make stuffin’ those walkers back in a heck of a lot easier when they do get here. :>)

Allan

I would think it more likely the machine became plugged in the separator housing from a broken chopper belt, etc. Then the walker broke and went through the top of the housing. Those things can act just like a baler plunger, only they aren't built for it.

When you replace the walker's and the new front crank, watch how the second, third, and fourth walkers set on the front and rear cranks. If one of them doesn't set on the crank throw just right, you also have a twisted rear crank that will need replacing. You can also turn the rear crank in the machine and see if the sides of the machine "breath" or wobble where the bearings are mounted.

Paul

P S Don't want to worry you, just something I have seen happen.