1862
 

I am new to site.
I started this for a friend at work. He blew a rod in the M-18. We could not find another M-18 so are going with a CH-18. I have gotten as far as getting the engine setting where it needs to be and bolted. The PTO lined up and hooked up. Now I need to find out what models this engine was used on, as the wiring is different. The M-18 only had three wires to the tractor with a three slot connecter, the CH-18 has six, with a five slot connecter. the guy I got the engine didn't know what model cub it came off but 100% sure it's off a Cub.

The Kohler CH-18 was used in Cub models 1863 & 1864

And others. That engine looks like it's out of a 2185. Go to the Kohler web site and download the CH 18 service manual it has the wiring diagram in it.

Thanks Roland big help. Same to you Sam. Should have known you'd be in here also. Kevin from MTF

Kevin

Yep, I spend way too much time here. One of these days I need to get a life. LOL.

Should be an easy swap for you. I did the same thing with an 1882 and a new CH22. Biggest PITA issues are the drive shaft, muffler and heat shields. Holler if you need help.

Mac

:Welcome2:

Compare your PTO pulley size on the new engine vs the old.

The pto is off the m18. Bolted right up to the ch18. As Sam said the pita is the driveshaft and exhaust. the ch18 sits about 2"s forward more than the m18 did. The 1862 shaft is now that much short, also making less room up front for the muffler. May just stack it as the owner has cracked the plastic sidecovers right where they snap into the grill support, so they flop. Dave the owner only paid 400.00 for it. I've told him a number of times to take care of it. That he was sitting on a $1200 to $1500 tractor. Some people just don't care. As long as he's willing to pay I'll fix it. I ain't doing this one as a freebie.

Some pics with the CH18 in

Look for a drive shaft out of a 1863 or 1864, same for the muffler. I put a pipe nipple a 90 and a hose on the CH’s when I do a swap for the oil drain.

I put a Command in my 1541 and faced the same issues. Cub does make a newer design for the muffler, but it costs over $200. The top heat shield is no longer available. One of the salvage people should have one. The drive shaft from the 1863/4 has different splines on the ends. They are a smaller diameter, so you need different parts for the universal joints. RF Houtz had the drive shaft stuff six months ago. Fair prices and good people to work with. You also need the spacers that go between the engine and the mounting plate. They are the same height as the Magnum spacers. They are larger in diameter. I am not sure if that matters.

Good luck. John

One other option for the drive shaft is to have a spacer made to fit between the engine and the drive shaft. If memory serves me the Mag is 1.9” longer than the CH. So you would need a spacer of that length. You will need to verify this on your tractor. JeffinPA could probably make this in a few minutes . This drawing should give you an idea what I’m talking about.

Have thought about a spacer for the drive shaft no balance isuess that way. Was going to lengthen the 1862 shaft. There is a garage just down the road from here that does shafts for hot rods. Was unsure about the spacers under engine also. If i use them the deck drive belt will no longer be long enough. As is now the adjuster on the mule drive is at the end of adjustment. Unless the belt is an incorrect one?

Hello everyone, it's been a little while. An update on the 1862. Dave the friend at work did some searching on his own and found a guy up in Ky selling a M18 for $450.00. We ended up up swapping the CH18 even for the M18. So in half a day she's running like a top. Good motor. Just need to do a little cleaning up the 1862. The only problem with it now and has been since he bought it, is the pto switch is not staying engaged. It's not staying in the run position. He's got a wire twisted around it in the engage position. I was wondering if that will harm anything running the deck with the pto switch always in that position? Dave's at the point he doesn't want to spend anymore or much more on it. He's now into it for around $850.00 to $900.00. Wish I could afford to buy it form him.

It is one of your safety switches under the seat if memory serves me right. I think there are two switches and one is for the pto.

Thanks for the update. :beerchug:

Thanks cub149 as the seat switches are not hooked up at the moment. Thanks for all the input. Good people on a good site.

You may also want to check the nuetral switch on the hydro control lever. I don't remember exactly how that one works but I think it cuts the pto off when put in reverse or it has to be in neutral to start the pto? anyway there is a relay there also. Just check all of the relays/safety switches. I think all of them are N/O (normaly open) circuits.

Chip is correct. When the pto switch is held in the up postion it bypasses the seat switch, relay contacts and the reverse switch to energize the pto. I would start checking those 3 things to find out which one is causing your problem.

Ok, just went out and hooked up the seat switches. Starts, runs but the pto still kicks off, and now as I let off the brake even with it locked down and sitting on the seat, the engine dies. Am thinking it's the reverse switch. The lever on the switch is every lose and barely touches the hydro lever.

Is that a MTD 990 in your avitar?

It was the grey switch under the seat. Pto switch now works as it should. Did it the proper way and replaced the seat switch. And yes Oak that is a 74 MTD 990, my personal winter project, a free be.

Just an update on this 1862. Should have bought it myself. Not sure what happened to it but,. Now before I put in the new M-18, I changed all the gaskets and seals, and the motor did not smoke at all. Just got a call from Dave, motor locked up and no oil. He said he's been checking the oil every time before using it, except today. Has not had to add any oil to it. The same thing happened to the other M18. I think he's ticked someone off and they're paying him back by draining the oil.

Sorry to hear that.

I know it would put too much in the tractor but I know a guy in Smyrna TN that has a couple of Kohler 18 hps. One is a Magnum and the other a Command. I believe he gets $425 exchange. I bought a JD frame off him last month and he seemed like a straight shooter. If you need the number I can look it up or he posts every week on the Nashville C-List

1862
 

Hello ya'll. Been awhile. Well Dave has finally decided what he's going to do with the tractor. Was going to scrap it, but I offered him 200 now it's mine. I picked up a 91 1641 with a 42" deck today for 300. So I figure for 500 I'm on to something. Will the 16 hp Briggs handle the 54" deck off the 1862. The only difference between the two is the 1862 has power steering. The 1641 is in much better condition so I don't think swapping the Briggs into the 1862 is worth the wiring change. What do ya'll think. I have dealt with Russell a number of times. He's who I got the CH18 from.

Glad you're getting the cub!

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OK did some search in and see the 54" deck not an option for the 1641. May look for a 46". Mowed with it yesterday evening and the 42" did a pretty good job.:biggrin2:. Not much will get done on for a couple of weeks, as we are closing on our first home on Thursday.:beer2: All my toys will get a new home as well. Will be going from a 10x20 shed to a 30x30 insulated garage:beerchug:. I'll tell ya workin on the 1862 in the shed was tight quarters. The 1641 will get a fuel system clean out as the grommet around the fuel indicator sending unit is shot so there is a lot of trash in the tank. So not sure what I'll do with the 1862, but will be awhile for I get to it. Going to be a busy couple of weeks.

1862
 

Some sad news on a side note, last year we had a wind storm come up that took out a 30-40' tree, that in turn took out my carport, that took out most everything under carport including the MTD 990 that's in my avatar. So Oak that was one project that never got finished.

I could possibly be interested in trading you a 46" deck for the 54" depending on the condition of your deck.

Or you could go with a 48" deck.

Sorry to hear that.

Same here.

Mike I don't have the 1862 home yet as I don't want to have to move it twice. I bought it sight unseen. It's been about a year since I've seen it, but the deck was in good condition. Some surface rust no through holes just surface, and at that time the bearings all were quiet. Not sure about them now. I mowed my yard twice with it before giving it back to Dave, best cut I got with a deck that large. But yea if it's the correct deck for the 1641 and the 54" still as good as it was, it's a done deal.

You have to swap the lifting frame, PTO belt and deck. I have all three. I could meet you in Bowling Green and swap it out as that's about halfway for both of us. Let me know.

Thanks to all, but if the mtd 990 would have survived, I wouldn't have looked for a Cub! The 990 needed a lot of work and no deck anyway, not that I'm glad it got crushed. It just save me from all that extra work. Besides I really like the 1641.

1862
 

Now this thought just came to mind. May sound nuts but I've seen it happen on a friends car. If the PTO on the 1862 froze up solid, would that be enough to stop the engine from turning? On the friends car, the ac compressor froze up and he could not start his car.

If the pto bearing freezes, the only thing that do make the pto pulley turn.

Your right Mike I had a brain fart, wishful thinking I guess. By the way should be picking it up next week.

Got the 1862 home today. Not impressed. Mike you don't want this deck. The tractor as a whole don't look like the same one I put the M18 on. Motor deafently locked up. Took the deck off to clean it up some, and it's full of pin holes and a few nickel size. Will post pics in the morning. Sorry Mike.

If the bearing in the PTO on the engine side locks up it will stop the engine, ask me how I know.