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Message |
    
Bill Davis
New member
Username: Nvbigblue
Post Number: 1
Registered: 12-2001
Posted From: 167.154.26.65
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, April 10, 2007 - 06:15 pm: | |
Hi guys!
I'm finally putting my MAX II back together. I picked up a strong running arctic cat sled with a 440 f/c engine that I've pulled out for use in my MAX. The problem I've run into is that the clutch on the engine is wider than the clutch that was on the original JLO engine. I believe it's a Comet 108exp. At any rate, the problem is that if I line the clutch up with the driven clutch on the tranny, it hits the side of the machine. I'm checking into replacing it with something not quite so wide, but I fear that I'm not going to have any luck. I'm also going to see about possible using the driven clutch off the sled to replace the driven on the t-20 now. If neither of these options pan out, my last, and I do mean last resort might be to 'extend' the body in the spot where the clutch hits it. I know this sounds odd, (and I have to thank my wife for the idea...), but she remarked that the comet clutch is just smaller than one of her cake pans (clutch is 8 1/2' dia.). She suggested that I might pop a hole in the body and then use the pan to gain the extra room needed for the clutch. I looked at it pretty good, and it might work. The pans are really heavy duty (say 1/8' thick) and have a lip of almost 3/4' inch all the way around. If I trim the lip off on one pan and use it as a backing plate, I can sandwich the body between them. I attached a really simple pic of what I mean. The ring would go on the outside of the body, and the complete one would go inside with the 'dish' portion going out. Since I don't really ever plan on spending more than a couple minutes in the water (just crossing a stream or such) and since the metal would mostly be protected behind the tire, my biggest worry is keeping dirt and stuff from coming through the body.  |
Ray Kohls
Intermediate Member
Username: Bw6
Post Number: 51
Registered: 02-2007
Posted From: 74.110.30.116
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, April 10, 2007 - 07:20 pm: | |
Hey Bill, check out CV Tech, they make alot of the clutches in sleds/atv's and have some very compact versions. You mind find something that is narrow enough to fit without having to cut your body.http://www.cvtech-dist.com/ |
Mike Cummings
Intermediate Member
Username: Hydromike
Post Number: 56
Registered: 03-2005
Posted From: 141.149.254.227
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, April 11, 2007 - 09:57 am: | |
Bill,
The 108EXP is a great clutch as far as tuneability goes. I've done two different engine replacements on different Attex machines with a Comet 102C, and have run into exactly the same situation. I'd love to disuade you from drilling or cutting holes in the body for this project. You have several options here, but we'll need more info. on your final plans to determine what bests suits your needs.
- You can yank the EXP clutch off and put on a narrower Comet Duster clutch (narrower total clutch width, not the belt), which is a good choice for a two-stroke 'Cat motor. I think the Dusters are acutally a bit narrower than Salsburys, but don't quote me.
- If you decide to keep the EXP clutch, you might be able to raise the engine by an inch or so, which might yield that bit of clearance you need on the side. This is what I'm currently doing to fix this problem. I don't know your vertical clearance to the engine cover, or if raising it a bit will even help. Typically, though, if you can get the clutch out of the "clutch well" (the bump out in the body) and get it up in the air just a bit, the gains in clearance are amazing. If you've gone through this much trouble in accomodating the engine so far, a change in the motor mount should be cake.
- You can go Tory Gardner style, which means if something "don't fit" get a heat gun and start making custom mods. Polyethylene has great maleability if you're careful. You can heat up the poly till it's mushy and start pushing it outward until the clutch fits. If you have several inches to go, this might not be the best idea, but if you're only off by about 1/2" or so, it's worth a shot, and in my humble opinion, a better plan than cutting holes.
I need to qualify that I only really have experience with the clearances on the Attex, but the general concept shouldn't be too different with the Max. If you have the opportunity to take a couple pictures of your situation, and give us an idea of how much more room you need, I/we might be able to help more...
Good luck! |
Bill Davis
New member
Username: Nvbigblue
Post Number: 4
Registered: 12-2001
Posted From: 167.154.26.65
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, April 11, 2007 - 02:18 pm: | |
Hey Mike (and everyone else),
Somehow I ended up with 2 posts on this. The othe one is here:
http://www.route6x6.com/discus4/messages/6/22328.html?1176305896
It has pics of the problem. Several people have suggested that I try heating the body and making a deeper bump for the clutch, and I think I'm going to try that first. I don't need a lot of space to make the thing work, maybe 1 to 1 1/2 inches. Richard Clark sent me an email saying I should be able to get around 2 inches or so....
Maybe I'll use a shallow pie plate as the back side of the mold while I'm heating and forming my bump...
Thanks,
Bill |
david berger
Senior Member
Username: Davidrrrd
Post Number: 518
Registered: 01-2005
Posted From: 72.72.84.209
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, April 11, 2007 - 05:31 pm: | |
i think jaming something between the cluch and side while heating on the outside may work best, be cairful with polyethiline, it will not want to chaing position till it's almost a liquid!
you should take your time heating it,
give it time to bend ect..
a little to much or too fast it could melt a hole in it .
when it dose start to bend back off a little.
maybe plan ahead for some way to cool the heated serfice fast if it becomes nesesary.
good luck,
annyone else that might have some input on the re-forming? |
isaac eisenman
New member
Username: Tropicjungleboy
Post Number: 2
Registered: 03-2005
Posted From: 201.224.139.175
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, April 11, 2007 - 10:23 pm: | |
hey bill:
find a sisor automotive jack and a round helmet style deep fryed bowl. get pressurized agains the clutch side wall. warm the body thru the metallic cacerole. and as soon as body start to combe, gently extend the jack until you reach the proper shape. let's cool or hose water over it for fast cooling process.
good luck and keep posting your advances,}}} |
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Restoration of older ATV's