Idler pulley has wear marks at 300 miles - it's coming off!

[BLUEKNIGHT911]

This isn't about wear marks, but don't discount the tensioner as I did.

When I purchased my F3-T 3 years ago I had no intention of ever putting a belt tensioner on it. The ride was smooth with no vibrations at any speed. Fast forward to a month and a half ago. I took my Spyder to have new tires installed and when I picked it up the dealer told me they adjusted the belt tension. Well on the ride home I had vibrations that were not there before the new tires and I knew they weren't tire vibs so I assumed that the belt adjustment caused them. I borrowed the tools from another member on this forum and set out to see what my belt tension was running at. Lo and behold, when I removed the side panels I found a BRP factory belt tensioner installed!!! I never knew it was there. Yes, I have had the big side panel off but never the smaller one behind it. At any rate, after reading all the posts on here about tensioners I removed it not planning to reinstall it when I got my belt tension correct. I adjust the tension and alignment which was WAY off and then took it for a spin around the block. All seemed good. I did a longer trip the next week and noticed a buzz in the 60 mph range. On a whim, I ordered LaMonsters upgraded roller to see what difference it would make. It arrived and I installed the new roller on the tensioner and then reinstalled the tensioner. Went for a ride this past Sunday and what a difference it made. The buzz was gone at 60 mph, and it was very smooth at all other speeds. I'm leaving it on, and now that I know it's there, I'll check it every oil change.

My 2 cents.

Bill

So what Exactly is your belt tension now ......Thanks .... Mike :thumbup:

 

[Haze]

I have the LaMonster vibration damper on my F3T.
I see the same twin marks on my belt after 1K miles.
No vibration but the marks make me nervous.

 

[Southpaw58]

Taking into account all the suggested tensions from others, the service manual (168 lb. plus/minus 33 lb.) and the paperwork Ron sent with the Krikit II, I set mine around 175 lb.


Cheers
Bill

 

[RayBJ]

I put the LM tensioner on at 3k mi and after running it for 15k since, I noticed 2 minor ruts on the roller surface. Not as pronounced as the pics above but since it had 15k, I swapped it out. The bearings feel like new so I saved the old one as a spare. I only ride 1-up with minimum load (200lbs rider & gear) and ~50lbs in the airbag. No clue why the wear since belt looks mint.