I just talked to Myron at SLP on my clutch balance and he said he was really surprised how close to being a good balance my clutch was when it came in. I cant say with 100% certainty but will assume if peeps say "i just got a rare good one" it musta been the balance on the clutch that made it survive. Moral of the story is spend the 50 bux to get your clutch balanced it may be money well spent.
Reason I think my 05 is still spinning factory crank at 2200 miles!
- Thread starter Himark
- Start date
2800 ish miles on my 03 Escape and no snap of the crank... yet. New primary this season because the old one was pooched. Oh yeah, the previous owner ran it with an SLP single and never even put torque stops or push arms on it.
slp clutch balance
I had SLP do the same on mine that is one factor the other is replacing your clutch bolt everytime you pull the clutch and keeping it torqued!
I had SLP do the same on mine that is one factor the other is replacing your clutch bolt everytime you pull the clutch and keeping it torqued!
C
Cpt.Ron
Well-known member
My 2005 900x159 had 3280 miles on it when the first crank failed. My original clutch had been changed out around 1000 miles due to the weights conflicking with the spider on the early model 900's.
This second clutch flew off immediately, (20 miles), after after the Dealership rebuilt the engine, they never replaced the clutch bolt when the crank had failed, (the clutch was wobbling on the end of the broken shaft at idle when I took it in, the outer crank web was held on only by the clutch bolt). This was an oversight from the Dealer, (even though I suggested that they change it prior to picking up the sled). The Dealer came good for another clutch and bolt without any questions.
I now have 9600 miles on this sled, the engine has not been apart since the crank install. (Polaris updated the crank to the 06 style as well as the pistons at this time) I recently had to replace another exhaust valve billows, but other wise it hasn't been apart. I check it frequently and maintain the sled well, ...and it has served me well!!!
If Polaris ever offered the 900 RMK as a new sled again, I would buy one!!!
Cheers
CR
This second clutch flew off immediately, (20 miles), after after the Dealership rebuilt the engine, they never replaced the clutch bolt when the crank had failed, (the clutch was wobbling on the end of the broken shaft at idle when I took it in, the outer crank web was held on only by the clutch bolt). This was an oversight from the Dealer, (even though I suggested that they change it prior to picking up the sled). The Dealer came good for another clutch and bolt without any questions.
I now have 9600 miles on this sled, the engine has not been apart since the crank install. (Polaris updated the crank to the 06 style as well as the pistons at this time) I recently had to replace another exhaust valve billows, but other wise it hasn't been apart. I check it frequently and maintain the sled well, ...and it has served me well!!!
If Polaris ever offered the 900 RMK as a new sled again, I would buy one!!!
Cheers
CR
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WOW cpt Ron! My hats off to you my friend. You prolly have the record to the best of my knowledge
3550 miles and stock crank and clutch! I did the top end 500 miles ago to get rid of the 05 pistons! I have had the clutches off half dozzen times and I use the same cluch bolt (didnt know to replace it lol) put in spi pistons and all is good. I drive it like I stold it but it just wont break lol. knock on wood!
D
Danbot
Well-known member
I got 1000 miles on engine #1: dropped mag side piston skirt and took out the crankcase and 1 cylinder.
Engine #2 used engine, 900 claimed miles when I installed it: put another 1000 miles on it, and just last week I lost a chunk of mag piston exhaust side just under the ring land, Only top end damage.
Zero crank issues to date. Other than my piston failures I have chased some wiring issues and tps bad spots, no other engine related problems
Dan
Engine #2 used engine, 900 claimed miles when I installed it: put another 1000 miles on it, and just last week I lost a chunk of mag piston exhaust side just under the ring land, Only top end damage.
Zero crank issues to date. Other than my piston failures I have chased some wiring issues and tps bad spots, no other engine related problems
Dan
C
Cpt.Ron
Well-known member
My son and I sno checked our 900's at the same time, everything that happened to one of them happened to the other in a very short order. The crank went out on my sons on April 14th 2006, myself and a friend pulled his sled out of Turtle to get back to the truck. We had friends in town and were commited to ride the next day, so I borrowed a sled from a friend. Wouldn't you know it, the crank on mine broke the very next day, on April 15th...... They both broke at the same place, at the PTO end. The sleds speedos were within a 100 miles of each other.
We also had broken exhaust valves at a later date, PTO side, within 100 miles of each other.
Beyond this, we have not had any further engine problems. My son sold his two years ago and is on a Turbo Nytro these days. I am still riding my old high miler,....lol.
We had all the usual teething problems like everyone did, TPS's, wiring, broken motor mounts and bolts, disovling fuel tank floats, belts belts belts.... We got all of that sorted out in time, ...my 900 is very reliable these days, runs hard and strong, with no grief.
I suspect that we had some of the very early production models, as I have heard of other 900's that did'nt have the crank problems, and particularly, the primary clutch problems with the shift weights contacting the spider. Polaris quickly sent out new primarys that had wider spacing in the spider for the thicker 900 weights. I have not heard of this as a common problem for a lot of the 900's however, but it was very evident on ours, and Polaris did not waste anytime sending out new clutchs, I still have the originals under the bench.
As I mentioned on another thread, it is too bad that Polaris did not stick it out with 900, as once the teething problems were fixed, they really have been very good. I look around the mountains here and speculate what I would buy if I was to replace my 900 and nothing stands out. The XP Doo's had their share of grief, perhaps now they have it dialed, but there are so many of them around. The new M8 looks to be working, but not any particular amount better than my 900, ...and I just don't care for the feel of the Cats. Of course I could buy a D8, but then I would miss the torque of the 900 and the D8's seem to have piston problems...... For now I think I will just keep riding my 900!!!!
Cheers
Cr
We also had broken exhaust valves at a later date, PTO side, within 100 miles of each other.
Beyond this, we have not had any further engine problems. My son sold his two years ago and is on a Turbo Nytro these days. I am still riding my old high miler,....lol.
We had all the usual teething problems like everyone did, TPS's, wiring, broken motor mounts and bolts, disovling fuel tank floats, belts belts belts.... We got all of that sorted out in time, ...my 900 is very reliable these days, runs hard and strong, with no grief.
I suspect that we had some of the very early production models, as I have heard of other 900's that did'nt have the crank problems, and particularly, the primary clutch problems with the shift weights contacting the spider. Polaris quickly sent out new primarys that had wider spacing in the spider for the thicker 900 weights. I have not heard of this as a common problem for a lot of the 900's however, but it was very evident on ours, and Polaris did not waste anytime sending out new clutchs, I still have the originals under the bench.
As I mentioned on another thread, it is too bad that Polaris did not stick it out with 900, as once the teething problems were fixed, they really have been very good. I look around the mountains here and speculate what I would buy if I was to replace my 900 and nothing stands out. The XP Doo's had their share of grief, perhaps now they have it dialed, but there are so many of them around. The new M8 looks to be working, but not any particular amount better than my 900, ...and I just don't care for the feel of the Cats. Of course I could buy a D8, but then I would miss the torque of the 900 and the D8's seem to have piston problems...... For now I think I will just keep riding my 900!!!!
Cheers
Cr
