Thanks for posting. After watching I’ve decided to hose it with dry graphite spray and hope for the best. Just needs to be good enough to pull a toboggan. Cheers!
I’ve only rebuilt one primary clutch ever at my dads shop last winter for a guy’s race sled. We never used a lathe we just had screw drives and sockets to pound out and in new bushings and we used scotch bright to clean up all the surfaces. Clutch turned out great! I have a “clean” junker sled I bought last winter and the clutch has 6k miles on it and it makes noises I’ve been back and forth on rebuilding it but I might just find a used one or a new one.
I agree 1000% that it's easier to look for a better primary than to pull one apart. I've seen fixtures that have been bolted to the floor and people are using 5' cheater bars to get the spider off.
Should you rebuild clutches is the question. I deal with Comet clutches, but the basic design is similar. If you buy all the new parts over the counter, when you add it up, you may not be saving much. If you have acquired NOS parts considerably cheaper than the current prices, it can make sense to rebuild. I have had clutches that were too far gone to rebuild, if the fixed sheave and shaft is worn there is no way to bring things back to new specs. I have bought clutches off ebay that turned out to be very lightly used, and with a clean up and installation of application correct arms and spring, worked very well. I know guys who are willing to work on anything on a sled, but only buy new clutches, so it definitely can be a personal preference.
i have same clutch,and i rebuilt itwith , all new rebuild parts. and bought the new movable sheave bushing, With steel retaining ring. that fiber bushing went in with a little effort. ( prior cleaned with emery , etc. and cleaner) but when i tried to install spider on the fixed sheave , it will no way slide down on the fixed shaft, two men and a boy to try to get it to slide. is it a tapered bushing? no where do i see it only goes one way. i already wrecked the first bushing with chain saw file trying to get it to slide gracefully. what the ? any info is appreciated
You did the thing I would have suggested in polishing the stem. As you discovered you can't open up the clearance or it wrecks the bushing. Make sure there's a tiny chamfer on the lead in on the stem and push it on and work it around and spin it and try to seat the bushing. If it won't loosen up I don't know what to say except polish some more and then try to push it on and work it in. They are always tight at first, but I have always been able to get them to move free by polishing and working them in.
@@nuttersspeedshop i did forget to say i did polish the shaft with emery prior to placing the spider. and yes, the tiny chamfer is there and everything looks good. thanks Man , for your input. the first one , i filed bushing w/chain saw file, ruined it. cant even push it on.
I'm just guessing because the hood had been changed so the speedo was probably not giving correct mileage on that sled. Probably 5000 miles + of pure neglect.
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Looks like me last week doing the same job, crocks and shorts! Have a good one
Rock on!
Thanks for posting. After watching I’ve decided to hose it with dry graphite spray and hope for the best. Just needs to be good enough to pull a toboggan. Cheers!
I bet that unit will come in handy at some point, thanks for sharing!!
You bet
I’ve only rebuilt one primary clutch ever at my dads shop last winter for a guy’s race sled. We never used a lathe we just had screw drives and sockets to pound out and in new bushings and we used scotch bright to clean up all the surfaces. Clutch turned out great!
I have a “clean” junker sled I bought last winter and the clutch has 6k miles on it and it makes noises I’ve been back and forth on rebuilding it but I might just find a used one or a new one.
Nutter that's why I buy all the p85 and p90 clutches I can new
Me too!
I agree 1000% that it's easier to look for a better primary than to pull one apart. I've seen fixtures that have been bolted to the floor and people are using 5' cheater bars to get the spider off.
Right on. I've broken spiders too. Sometimes they just can't be saved, no matter how big of a cheater bar you have :)
🇸🇪 Thank you for a helpful video. I hav that kind of clutch on a 1990 swedish Aktiv.
Should you rebuild clutches is the question. I deal with Comet clutches, but the basic design is similar. If you buy all the new parts over the counter, when you add it up, you may not be saving much. If you have acquired NOS parts considerably cheaper than the current prices, it can make sense to rebuild. I have had clutches that were too far gone to rebuild, if the fixed sheave and shaft is worn there is no way to bring things back to new specs. I have bought clutches off ebay that turned out to be very lightly used, and with a clean up and installation of application correct arms and spring, worked very well. I know guys who are willing to work on anything on a sled, but only buy new clutches, so it definitely can be a personal preference.
Right on.
Usually this is said by someone that’s unable to rebuild a clutch,
More money then brains lol
Im not gonna attempt primary rebuild 😮
It's very easy
Nutter believe it or not I've seen those fall out , I rebuilt one and it came out with in twenty minutes
Bushing fell out?
Yeah
i have same clutch,and i rebuilt itwith , all new rebuild parts.
and bought the new movable sheave bushing, With steel retaining ring. that fiber bushing went in with a little effort.
( prior cleaned with emery , etc. and cleaner) but when i tried to install spider on the fixed sheave , it will no way slide down on the fixed shaft, two men and a boy to try to get it to slide. is it a tapered bushing? no where do i see it only goes one way. i already wrecked the first bushing with chain saw file trying to get it to slide gracefully. what the ? any info is appreciated
also, the belt surface is very clean and shiney no rust did emery cloth that too.
You did the thing I would have suggested in polishing the stem. As you discovered you can't open up the clearance or it wrecks the bushing. Make sure there's a tiny chamfer on the lead in on the stem and push it on and work it around and spin it and try to seat the bushing. If it won't loosen up I don't know what to say except polish some more and then try to push it on and work it in. They are always tight at first, but I have always been able to get them to move free by polishing and working them in.
@@nuttersspeedshop i did forget to say i did polish the shaft with emery prior to placing the spider. and yes, the tiny chamfer is there and everything looks good. thanks Man , for your input. the first one , i filed bushing w/chain saw file, ruined it. cant even push it on.
How many miles would it take to wear a clutch that bad?
I'm just guessing because the hood had been changed so the speedo was probably not giving correct mileage on that sled. Probably 5000 miles + of pure neglect.
Are those steel toe crocks???
You bet LOL!