Counter shaft pulley...again

[docdoru]

Ah, OK, that's how I do it, didn't know bikers referred to it as double clutching.

Or double dutching :2thumbs:

 

[SpyderWolf]

Or double dutching :2thumbs:

I wanted to try that, but can't seem to get the front wheels of my SE5 off the ground enough to start the game. :roflblack:

 

[Firefly]

Downshifting and blipping the throttle so the RPM matched the road speed. :doorag:

Assuming you're NOT using the clutch during this process then?

 

[Firefly]

The big question to me is which happens first? There are some that say the bolt cracks and loosens first, allowing the splines to wear, while others feel the spline wear allows play, which eventually damages the bolt. If the splines wear first, due to improper design, improper alloys, or improper heat treating...a stronger bolt, or Loctite, would be of little value. If the bolts are going away, there is still a question as to why the splines wear so badly, and why all the damaged pulleys I have seen were worn to the same point...none had slipped out farther on the shaft and left the outside ends of the splines (except the very outer edge) intact. I intend to Loctite the bolts, and even replace them with a higher grade, but I suspect the problem lies elsewhere.

I think it's the splines and then the bolt goes when it's trying to 'pick up the slack'.

 

[widowmaker2011]

The big question to me is which happens first? There are some that say the bolt cracks and loosens first, allowing the splines to wear, while others feel the spline wear allows play, which eventually damages the bolt. If the splines wear first, due to improper design, improper alloys, or improper heat treating...a stronger bolt, or Loctite, would be of little value. If the bolts are going away, there is still a question as to why the splines wear so badly, and why all the damaged pulleys I have seen were worn to the same point...none had slipped out farther on the shaft and left the outside ends of the splines (except the very outer edge) intact. I intend to Loctite the bolts, and even replace them with a higher grade, but I suspect the problem lies elsewhere.

Very astute Scotty , thus the vibration Dampner on the RT...nuff said. :doorag:

 

[Roaddog2]

I see your problem.... It's made in the usa, the pic says it allhyea:

But it is made to their Engineering specs probably at there Johnson plant :gaah:

 

[docdoru]

Very astute Scotty , thus the vibration Dampner on the RT...nuff said. :doorag:

Only at RT's semi-automatic.

 

[SpyderWolf]

Where would the dampener be?:dontknow:

Here:

http://www.spyderlovers.com/forums/showthread.php?t=17685

 

[Recluze]

"I think the answer probably lies in stronger materials for the shaft, pulley, and bolt...."

Would not taking some of the tension out of the belt solve a lot of these problems? I am not certain that it has to be as tight as it is but then I am not an engineer.

 

[bjt]

I think that the high belt tension along with the fact that the pulley has no outside bearing support is putting a diagonal or side load on the pulley splines and bolt. Don't know if anyone has ever compared belt tension throughout the limits of rear wheel travel, but I wouldn't be surprised if some shock loads are also induced during suspension travel.

As the splines start to wear, those side loads would be transferred to the bolt, which in turn would become work hardened or brittle over time, and fracture. Once the bolt breaks, obviously the pulley splines would wear much more rapidly.

As someone who's gone through the same problem, I think HDX's theory makes a whole lot of sense.

I think the answer probably lies in stronger materials for the shaft, pulley, and bolt.......opcorn:

How about if the pulley and shaft were one machined piece? Then we eliminate the splines and the bolt. Or go to a shaft drive. opcorn:

 

[krb1945]

Bones hit the nail on the head...

just need to add a stronger larger bearing to the stronger shaft, bolt and gear. /Ken

 

[smokster]

This happened to me as well, left me stranded.
Is there a service bulletin on this?

 

[RoadHammer]

This happened to me as well, left me stranded.
Is there a service bulletin on this?

apparently there is but i havn't seen it.

 

[cmarsala]

Front pulley failure

I've been following s many forums that I can concerning this problem, I've read that there's a new TSB out on it from BRP. The dealer here won't share the info, so does anyone have the TSB and if you do can you post it on the forum. SO far I haven't had any problems, just want to be up to speed when I do! Thanks:doorag:nojoke