- Dit onderwerp bevat 4 reacties, 3 deelnemers, en is laatst bijgewerkt op 3 jaren, 8 maanden geleden door .
-
<i class="fa fa-comments-o" aria-hidden="true" style="font-size: 20px;"></i>
-
Hello, lately i came across a problem with a belt that wears out too quickly. Firstly it wears from the side like it was too wide and then it wears all lenght and breaks. The setup is standard 50cc, vario polini hi speed, standard rear coupling, sito + exhaust.
Polini hi speed used in the setup. It uses some parts from original vario.
So one belt didn’t last 200 km and another one below 50 km. I don’t see any wear on the vario pulleys (but maybe i can’t recognize them). Recently i did move engine farthest to front of the frame – could it be the reason or is it a faulty vario?
what brand belt are you using?
Im riding flawlessly for a long time now with a Gates beltwhat brand belt are you using?
Im riding flawlessly for a long time now with a Gates belt
I was using Malossi belt and next RMS belt. Both for use with Si and Grillo, 13mm wide.
The name of the vario is wrong, the one you have is a Polini Utah and not the Hi-speed or Speedcontrol. But this seems not to be the problem. Did you check if the belt is running freely?
It might be it is scratching on some obstacle’s on your subframe or the motorscreen.The name of the vario is wrong, the one you have is a Polini Utah and not the Hi-speed or Speedcontrol. But this seems not to be the problem. Did you check if the belt is running freely? It might be it is scratching on some obstacle’s on your subframe or the motorscreen.
I didn’t notice any scratching. It seems like it’s running freely. But i have an idea what may be the cause; there is a copper bushing (that is used in Polini vario) in stock vario (picture below) and it may cause the belt to tear.
The belt looks like it wears mainly from one side, the same side as the copper bushing.
But the belt may touch this bushing only at idle or low speeds. At higher speeds it goes higher on variator half pulleys so i don’t know if my theory is right. I saw that someone grinded a bit of this bushing and it is not visible.
It is possible that the belt wears, because it is too short for this vario and clutch 100m?
- Je moet ingelogd zijn om een reactie op dit onderwerp te kunnen geven.