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  #1  
Old 06-26-2018, 07:28 PM
682ch23s 682ch23s is offline
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Default 682 CH23 swap

Hello! New member here in Virginia with a new-to-me 682 with a 50" deck. 1900hrs and very clean throughout. The KT17 has internal damage, but I have a CH23S Command waiting to go in. My neighbors had a 682 back when they were still newish, and I'm excited to hear that low thrumm again and experience mowing with my very own 682.

From reading around it looks like I have a few things to address:
1) offset mounting holes in the motor plate
2) 12V NC relay for the ignition cutoff
3) exhaust
4) driveshaft isn't long enough for the CH23

Some questions:

Is it sacrilege to drill the motor plate? It's already there and the patina matches the rest of the tractor perfectly (if you're into that sort of thing).

I like the idea of reusing existing original parts where I can.

Adding a relay for the ignition cutoff is a no-brainer.

I have a CH18 flywheel PTO coupler on it's way. Other than the driveshaft length, will all the shaft parts bolt up? How much does the driveshaft have to be lengthened? Has anyone experimented with a spacer between the flywheel and PTO coupler, similar to the spacer on an American vehicle radiator fan? I've seen one picture using a big Lords coupler too. Has anyone used a coupler/spacer to mount a CH to a 682 driveshaft?

I don't have a good solution for the exhaust; I was thinking I'd rig something up from Tractor Supply until I found a better solution. I don't feel like paying a gazillion dollars for a new one.

If anyone has recommendations for how to resolve my questions, especially the driveshaft, I'm all ears. I'd like to have everything ready to go when I start turning wrenches. I feel like putting a CH in an 682/782 should be a solved problem by now, but I'm not seeing a lot of threads here with actual part numbers for how people set theirs up. What I figure out, I'll post here.

Thanks!
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  #2  
Old 06-26-2018, 08:13 PM
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john hall john hall is offline
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Never did an engine swap on anything but I can answer your question about the motor plate. There are 200 gazzilion 682's out there, hack away at it. Now if it was an "O" (original Cadet), or a 800, well those are kind of coveted, maybe even a 982. But the part you want to modify can be bought all day long from people parting one out, and there are probably quite a few that get sent to the scrapyard. For the most part, Cadet users and collectors do what it takes to keep one running. Normally we don't like butchering things up and try to keep the machines looking "stock". There are a FEW guys that truly restore back to showroom appearance, but not many. In the end its yours, do as you deem necessary.
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  #3  
Old 06-26-2018, 09:05 PM
J-Mech J-Mech is offline
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Quote:
Originally Posted by 682ch23s View Post
From reading around it looks like I have a few things to address:
1) offset mounting holes in the motor plate
2) 12V NC relay for the ignition cutoff
3) exhaust
4) driveshaft isn't long enough for the CH23

Some questions:

Is it sacrilege to drill the motor plate? It's already there and the patina matches the rest of the tractor perfectly (if you're into that sort of thing).

I like the idea of reusing existing original parts where I can.

Adding a relay for the ignition cutoff is a no-brainer.

I have a CH18 flywheel PTO coupler on it's way. Other than the driveshaft length, will all the shaft parts bolt up? How much does the driveshaft have to be lengthened? Has anyone experimented with a spacer between the flywheel and PTO coupler, similar to the spacer on an American vehicle radiator fan? I've seen one picture using a big Lords coupler too. Has anyone used a coupler/spacer to mount a CH to a 682 driveshaft?

I don't have a good solution for the exhaust; I was thinking I'd rig something up from Tractor Supply until I found a better solution. I don't feel like paying a gazillion dollars for a new one.

If anyone has recommendations for how to resolve my questions, especially the driveshaft, I'm all ears. I'd like to have everything ready to go when I start turning wrenches. I feel like putting a CH in an 682/782 should be a solved problem by now, but I'm not seeing a lot of threads here with actual part numbers for how people set theirs up.
Welcome to the forum.

You are correct on several things. #1 being that putting a CH motor in an '82 actually is a "solved problem". Why you aren't finding anything probably is because the search feature on this site is for the birds. You will have better luck using Google to search the site.

Here's what you need to know:
The Cyclops tractors were the same frame as an '82 series tractor, and used the CH motor in them. You can drill the holes in the engine plate on the 682 if you want. No issues there. Like John said, blue million of them out there. That said, you could also just buy an engine plate from say an 1864 and the CH will bolt up to it, and the plate will bolt right in the 682. I'll look later, but there is a pic with dem's on it around here somewhere that tells where to drill the holes.

On the exhaust/muffler. Again, 1864 muffler. Bolt right up and work fine. Might have to cut the end off a bit, but that's it.

On the driveshaft..... again.... 1864. You will have to make the swap the the CV shaft, but member JeffinPa on here makes the adapters you need. He can also make you a new driveshaft if you don't want to adapt to the CV style shaft. How long.... I do not know. He may, as he makes them all the time.

Yes, adding a relay for the ignition is a no-brainer.... but don't get too excited about N/C or N/O relays. Any standard 5 prong relay for $10 on the shelf at a parts store is both N/C or N/O. Use terminal 30 or 30A depending on which way you need it to be. Easy peezy.

As far as part numbers needed...... I don't know what you want part numbers for.... not much to say.

Got any more questions??
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  #4  
Old 06-26-2018, 10:08 PM
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SS5150 SS5150 is offline
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I'll be doing this swap myself next month, after the holiday, to a Command 18. Think I'm going to use a 2000 series shaft spliced to the OEM shaft (unless I can find a 64 shaft). Looking forward to it.
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  #5  
Old 06-26-2018, 10:25 PM
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DieselDoctor DieselDoctor is offline
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Here's the call out on a standard 5 pin relay Jon referred to.

http://hbphelp.me/5-pin-relay-wiring...ram-within-pin
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  #6  
Old 06-26-2018, 11:13 PM
J-Mech J-Mech is offline
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Quote:
Originally Posted by DieselDoctor View Post
Here's the call out on a standard 5 pin relay Jon referred to.

http://hbphelp.me/5-pin-relay-wiring...ram-within-pin
Annnnnndd..... I got the numbers wrong. Dang.

It's terminal 87/87A. Terminal 30 is the input.

My bad!!
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  #7  
Old 06-27-2018, 05:29 PM
682ch23s 682ch23s is offline
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So I have a CH18 driveshaft adapter off an 1864 on it's way, on the idea that it will match both the CH flywheel pattern and the 682 driveshaft bolt pattern. If that's so, then there's still the driveshaft length problem. My thought is to fab a spacer between the flywheel and 1864 adapter. Thoughts?
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  #8  
Old 06-27-2018, 05:54 PM
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Sam Mac Sam Mac is offline
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Buy a pump adapter from Jeff and get an 1864 or 1863 drive shaft and be done with the rag joint problems. It's all bolt in.
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  #9  
Old 06-27-2018, 07:18 PM
682ch23s 682ch23s is offline
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I'm looking around for a driveshaft; we'll see what turns up.
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  #10  
Old 06-27-2018, 07:27 PM
682ch23s 682ch23s is offline
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Looking at Jeff's page here on the site; is the driveshaft adapter the "drive hub"?
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