Something else you need to check on your pro

[pura vida]

not sure how many have followed my other thread, "crank failure", but the issue turned out to be a motor plate problem.

the bolts holding the mag side motor plate back out causing the motor to become loose. the bolts can actually fall completely out. found one of mine rolling around by the clutches. the other one was halfway backed out. this obviously causes the clutches to come out of alignment among other bad things. worse, when the bolts are loose they oblong the bolt holes, pretty much ruining the motor plate. when loose enough the motor will slap against the plate causing a noise that sounds the clutch is rubbing or a bad crank rod bearing.

to check for this issue lift up on the recoil. if the motor moves without much effort, you have an issue. i thought mine was an isolated issue but there has been three local sleds with this same problem.

pv

 

[800xtreme]

Did you do the 2012 Motor Mount update kit? I went back and looked at your "crank failure" thread. You stated that you had done the update. Did the dealer do the update for you? Did they not use the recommended loctite? Did they not torque them properly?

I just replaced all of my bolts on 2011 Assualt with the update kit. The kit calls for a SPECIFIC kind of loctite - 243. I had to order it online. I torqued all the bolts to the specs they suggest. In addition, I added the SLP torque arm. I hope I don't have the same issues you did...what a pain in the a**.

 

[pura vida]

two different issues. i did the 2012 motor mount update earlier in the season for other reasons. easy to do, and no problems with those. this is an issue with the bolts that hold the motor PLATES on, not the motor mounts. the plates are what bolt directly to the bottom of the motor case. and yes, it is a PITA. now i'm just waiting to see how long my sled is going to be down... decided i would do the the work myself b/c even with how good my dealer is, i'm sure it would be a week or more before they could get to my sled (they are busy), then they would have to order the part, then put it back together. since there are two of us, at least, that need the part we are going to try to red label it, split the cost, and try to be back on the snow by the weekend. still going to miss some good riding this week...

pv

 

[Rev Kev]

Thanks for the update, enclose a few photos to help those who don't quite grasp what your talking about, as they say, pic is worth 1000 words. I just recently did the motor mount upgrade. My question, is it possible to get to those bolts without pulling the motor? I May want to put a wrench on them before we head to Cooke City in a week.

 

[jdw1]

Thanks for the heads up!

 

[pura vida]

here is a pic of the bolt hole in the case. not my case but good example. i got lucky, my case is good to go. no, i don't think you could really check these without pulling the motor. you have to get to the underside of the case. can't do that without lifting up the motor. i have a vid on my iphone that i'll try to get posted up. i should also note that the three motors with this issue i have heard about were only by chance. no idea how many others have had this issue or have this issue and don't know about it.

pv

 

[AkLogan]

Mine is doing the exact same thing. Havnt got a chance to pull the motor out yet but did lose one bold completely and the other was really loose when i noticed something was wrong.

 

[theultrarider]

Mine is doing the exact same thing. Havnt got a chance to pull the motor out yet but did lose one bold completely and the other was really loose when i noticed something was wrong.

It was yours that helped me figure out that Pv had the same thing going on. Now Chad lost his too and it took out his cases. The bolt holes in the bottom of the case are toast. I'm afraid yours most likely are as well.

 

[AkLogan]

easy there. dont ruin my weekend just yet lol

 

[pura vida]

i got lucky. my cases seem fine. i'm not missing any threads. here is chad's video that show what the issue is and how to check it.

http://vimeo.com/34271751

and this is what my sled looks like after tearing it down far enough to get to the plates on the bottom of the motor.

pv

 

[icr]

great, one more thing to worry about now that I don't have warranty. I'll check mine when I get home, if they're wobbled I'm buying a cat.

 

[skibreeze]

It was yours that helped me figure out that Pv had the same thing going on. Now Chad lost his too and it took out his cases. The bolt holes in the bottom of the case are toast. I'm afraid yours most likely are as well.

I would think that worst case scenario the threads would need a helicoil.

I had 1 bolt snap on my 08. I can't believe that Polaris didn't use locktite on the newer bolts.

 

[theultrarider]

I would think that worst case scenario the threads would need a helicoil.

I had 1 bolt snap on my 08. I can't believe that Polaris didn't use locktite on the newer bolts.

Or cases warrenteed along with a dab of red locktite?

 

[AndrettiDog]

great, one more thing to worry about now that I don't have warranty. I'll check mine when I get home, if they're wobbled I'm buying a cat.

And if the Cat has a problem are you going to buy a Doo? Then onto a Yami? I hope you are kidding. This sport requires a little wrenching.

 

[Demo250]

Wonder if Poo fixed this for 2012. Anyone know if this is just a 2011 issue? Hopefully they decided to use locktite on the '12s.

 

[theultrarider]

Wonder if Poo fixed this for 2012. Anyone know if this is just a 2011 issue? Hopefully they decided to use locktite on the '12s.

Only been the 11's around our neck of the woods.... so far.

 

[IQRIDR]

The pictures and video are of my motor. Thanks for posting them up PV.

If anyone hears a weird fluttering or rubbing noise, especially when touching the skis back down, check this immediately. My cases are indeed toast. Thankfully I have a great dealer and I'll be up and running by the weekend. What are the chances my dealer had a set of cases in stock?

 

[pura vida]

icr is just a little justifiably frustrated as of late. he has had a few issues and his dealer pretty much sucks. (ie. i won't step foot in there) i probably could have gotten a slightly better price from carl's and shipping was covered but i was more than happy to spend a few hundred more at my local dealer for the outstanding service i get from hpp.

back to topic, there was clearly some sort of locktite on all the bolts, including the ones that backed out. there is plenty of threads so i'm going to add lock washers along with fresh red locktite on all four bolts. hopefully that will prevent it from happening again. not sure how common of a problem this is or will become. so not sure if this would even be a known issue to be fix?

pv

 

[Murph]

I'm going to have to pull my motor and check this also.

If you absolutely want those bolts to stay put, safety wire them.

 

[friscospices.com]

You are supposed to use oil resistant blue locktite