782 Engine
 

I picked up a 782 a few months ago, it has a red M18 in it.

I did a bit of searching with the spec number, only info I found was, Made for Grainger.

I'm wondering what this engine would have been used in, or used for originally?

Perhaps the motor was a new replacement motor that a PO purchased from W. W. Grainger, which is a big (and pricey) industrial supply company?

I agree with Billy O
Those M-18's were very popular, being used in skid steers, mowers,ariel lifts,irragation pumps, electrical generators, and just about anything that needed reliable power at a fair price.
Had it not been for emission requirements, they prolly would still be producing them.:beerchug:

FWIW, I asked Copilot "What application was a Kohler engine, spec 24543 used in?"
The answer.....

Thanks for the insight on the M18. It's my first kohler cub, my other 3 cubs all have kubotas in them.

I don't know any history on this 782, since the PO had passed away, and the only thing the person selling his estate knew about it, was he had sunk more time & money into it than it was probably worth.

Another question I have about the engine. Is there any hopes of putting a PTO on this engine? The PTO shaft is broken.

Maybe, the cub spec engines are pretty short. I think they are 2 and 5/8 inches. How long is this one at the shortest point?

It's approximately 1-7/8" at the shortest part.

Ya its a little short by about an inch.
You could get a good crank on Epay and have it assembled in 1/2 a day if the engine is in good shape otherwise,:beerchug:

Nice front hydraulics :beerchug:

Is it broken or did the PO cut it off really poorly? :bigthink:

It seems to run well. It does not smoke at all. Or make any strange noises. I have not really used the 782 for much in the few months I've owned it, other than moving my log splitter a few times, and pulling my firewood trailer around my property once a week. That's about all I have done with it. I went outside to use it the other day to move some firewood up to my house, it had been sitting for over a week in a unheated shop, single digit temps at night, it started fine, 1/2 choke, about 1/3 throttle, it came to life. It seems healthy to me.

I'm going to try and find a crankshaft local to me, before I go the eBay or online route.

I've been reading over the the M18 engine parts list, comparing part numbers, M18 made for Grainger, and M18 made for Cub Cadet specs.

The crankshafts and closure plate, have different part numbers, all other part numbers, bearings, heads, block, cylinders, flywheels, etc, seem to be the same, on the two engines. I assume the closure plate has a different bolt pattern for the PTO? And the crankshaft in the Grainger M18 are a different spec as well?

I'm tempted to hunt down a M18 Cub Cadet crankshaft, and closer plate, because I think they will be easier to find. Unless you can direct me otherwise? I think a Cub Cadet M18 crankshaft and closer plate should plug and play with the Grainger M18?

I think it's broken, unless the PO cut it off with a dull hacksaw blade and cold chisel? It's rather jagged looking in person.

I'm little ashamed to say this out loud. I did not see the PTO was missing, and the shaft was broken, when it was at the estate sale.

I still would of bought the 782 anyways, for the price they were asking. I hardly looked it over at the estate sale, I saw the price tag of $250, and it had a running M18 in it, that didn't knock or smoke. I had to make a fast decision, and get the money out of my pocket, before someone else did.

Once I got it home and unloaded, I looked it over a bit better. I was a little bummed out, but not bad. I've seen non-running locked up 782s around me bring $350-500 at estate sales.

The dual spool valve in it has remnants of yellow paint on it, so it must be from a different tractor?

I think the spool valves were always an orangish yellow, regardless of tractor color. That valve alone is worth what you paid, so I wouldn't be worried. I would also never check the front PTO unless it had an attachment on. I would probably turn it on with the switch and see what happened, which might have lead me to it being missing.

I would think being it has an oil filter the Cub crank would not work. It prolly has different oil passages, check me on that Ol George on this one. This is on ebay, good to compare with a cub one.
https://www.ebay.com/itm/20523034475...Bk9SR-Sq0KaQZw

I thought the M18 in Cubs had a oil filter also? I'll wait and hear what Ol George thoughts are also.

Here's crank on eBay from a Cub M18.

https://www.ebay.com/itm/136925963915

Most horizontal M-18 equipped cubs had the oil filter adaptor on the block for divorced /remote filters using oil lines.

So If a person wanted to use a filter on the block,all one had to do was use the applicable adaptor.(and trim the cooling tins for block mounting)
You already have the block mounted filter.
currently I have 3 engines with block mounted filters and one with a remote filter.
That crank on epay looks usable,and from the picture I don't see any problem with the blemish on one rod journal.
That said, without putting a mike on the rod journals, one can't see the size or any taper.
But usually either they are quite obviously damaged, or usable.:bigthink:

I think your closure plate will work as it apperars to have the PTO clutch mounting holes,and the internal oil passages are in the block and are all the same.
Some of the replacement supplied engines had different length crank to fit say a irragation pump or a tapered crank to fit a generator application, just to name a few,
I've seem one on a bandsaw in a saw mill utilizing 4 drive belts.:beerchug:
I'd say you just need to change your crank to enable you to mount a PTO clutch on your engine.
And if you did have to change the closure plate, its just a bolt on cover.
:beerchug:
I'll not get into making a Vertical engine long crankshaft fit into a horizontal engine but it can be done, but it needs shortened and some lathe work, and a keyway milled, but its an acceptable job for us that like to tinker:biggrin2:
I'm guessing your red replacement engine possibly came with a longer crankshaft for say a pulley or irragation application, and somewhere along the line it got broken and was transplanted into your tractor just using for motive power, not PTO use. but its just a guess.
Or theory #2:
"Bubba"
bottomed out the PTO retaining bolt in the center of the crankshaft with an impact wrench and snapped the end of the crankshaft off.:bigthink:

Thanks ol george for correcting me.
Crankshaft manual on page 56 shows the length...
https://www.smallenginesuppliers.com...-reference.pdf

Thank you for sharing all that, I really appreciate it. It will come in handy.

I think you might be onto something with the Bubba theory. There is a what appears to be a broken / twisted off bolt in the shaft.

Thanks for posting that manual. It will be very helpful to use for reference.