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Another Broken Primary Clutch!!

die hard poo

Well-known member
Lifetime Membership
Well guys I have been plagued with the Broken Primary clutch issue. The Primary broke right in half as you can see in the pics.
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Thank God it just spun on itself and not hit anything else like my secondary or motor. It took three trips back 15 miles in Whittier, AK in big country to get it out. First rescue mission attempt was an epic fail. We rode in double(Bro in law in pic) in on my Dragon and a friend on his Pro.
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We tried to pull off the stuck sheave with a 11" puller, that didn't work at all, even with heat.
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Then we decided to cut it off piece by piece. We didn't really come prepared for that. All we had was a dewalt drill with a cut off wheel and two batteries. We drained those right when got the hardened steel shaft.
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So we decided I would run back to the town of Whittier and try to get charged batteries. Well unfortunately my Dragon(Wife's Sled) decided to crap a piston on the way there. Not sure how it did this, it has a PCV and it only did this on the mag piston. Looks to me like a lean condition.
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But let me tell you I was impressed that it made it out of there on One Piston! This is big country and lots of mountains to climb with a sled that was one lungin' it! But it made it!
So tried again, but got weathered out, so we didn't make it back to it.
Third attempt was successful with a 2500 watt Generator strapped to my buddy's Pro, and doubling on my other friend's Pro with my Father in law with 50lbs of tools strapped to it's back.
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I was able to cut off the remaining clutch off with a cut off wheel on an angle grinder. Clean up the crank shaft and slap a new clutch on it and ride it out.
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Here it is riding out on its own power.
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So I haven't taken to the dealer yet cause I had to go to work, but I know it was a manufacturer defect and I hope to get a new crank too due to the nicks and burrs to the end of the crank and added stress to the crank from the incident. Obviously a new primary also needed. It also messed up my belt. Do you guys think that is too much to ask? This happened at about 920 miles.

Here is a few pics of the terrain for your enjoyment
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Is the sled all stock? What if anything has been done to the sled? When you get a new primary on, run your sled with the track in the air and watch your secondary to make sure it didn't get bent when the primary broke.
 
Quite the adventure! You'll be telling that story for awhile. Thanks
 
Beautiful country. Way to git'er done. Hope you have a great dealer, don't think poo is gonna be happy to spring for the crank, but you deserve it. These snapp'in primaries are getting old. Wonder if poo really knows the whys and lots affected, would be nice if they shared, wouldn't it?
 
WHY

What were you thinking- and why would you go through all of this trouble of grinding the clutch?? you could have towed it out and be done with this issue.
Allot of trouble for nuttin-- Man the pic's are good but what you went throught is way beyond what is expected,,,,,,,:nono:

S.C.
 
Is the sled all stock? What if anything has been done to the sled? When you get a new primary on, run your sled with the track in the air and watch your secondary to make sure it didn't get bent when the primary broke.
Only mods were a PA head, SLP Blue/Pink Primary spring, Black/purple sec. Spring, 60/42/.36 Helix, and a BMP Can.

Bum Deal,
Were there any warning signs?
Right before it blew, I felt a vibration and I checked my belt, all good. I then drove 50 ft and then she let go. That was it...
Beautiful country. Way to git'er done. Hope you have a great dealer, don't think poo is gonna be happy to spring for the crank, but you deserve it. These snapp'in primaries are getting old. Wonder if poo really knows the whys and lots affected, would be nice if they shared, wouldn't it?
Ya I know it is a long shot on the crank, but I just want it back to the way it was. And I think there was a few bad P-85s built and now showing up.

What were you thinking- and why would you go through all of this trouble of grinding the clutch?? you could have towed it out and be done with this issue.
Allot of trouble for nuttin-- Man the pic's are good but what you went throught is way beyond what is expected,,,,,,,:nono:

S.C.
Well towing out wasn't really an option. All in all we had 4-5 hours fixing in the field. It would of took forever and a lot of belts and pulling/hurting other sleds trying to tow this thing out of there 15 miles through some nasty terrain.

How long has the Head been on??
100 miles, and to be honest, I didn't see as much of a gain as I hoped for. Yes there was better throttle response, but that was about it...
 
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this snapping clutch issue sucks and I'm wondering "when" mines gonna go and where it'll be. I believe you're entitled to a new crank, but doubt you'll get it. I bet the dealer techs nick the cranks a little too when they have to cut one off.
 
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