Belt failure - thoughts

[Behold81]

My supercharger belt had a weird failure. About 20% of 1 rib has split clean through and turned over. The rest of the belt is fine and not turn up damage else where that I can see. Side cord is not excessively worn. Just a failure on the belt or something else?

[Behold81]

[MyM8V8]

Faulty belt or check for wear on the poly V.

[Black VXR]

running (slightly) out of line? are all the bearings good

[monkfish1]

Black VXR said:

running (slightly) out of line? are all the bearings good

This ^^^^. Pulley misalignment.

[Behold81]

There is no wear elsewhere. I have run the belt on other ribs (8tib belt on 12rib pulley) and it stays true no jumping unless I nail it hard. At that point it creeps to the front due to flex.

I'm guessing its what I will just have to live with till I get a stronger bracket?

[stevieturbo]

Stronger bracket, or adjust belt tension, or use spring tensioner.

With the manual adjuster you need to apply far more static tension just to overcome the fact the belt will stretch under load as well.

Is the idler the correct width for the belt, or for a wider belt ?

[Behold81]

stevieturbo said:

Stronger bracket, or adjust belt tension, or use spring tensioner.

With the manual adjuster you need to apply far more static tension just to overcome the fact the belt will stretch under load as well.

Is the idler the correct width for the belt, or for a wider belt ?

Wider but the front edge is adjusted to just beyond the edge of the belt so it only hits if it over flexes and try's to jump.

I want to do the spring tentioner bit need to find one I can get to fit fully.

Found a uk supplier of good 12pk belts so give one a go and see if it fails the same.

It has been fine for 6-9 months.

[stevieturbo]

Behold81 said:

Wider but the front edge is adjusted to just beyond the edge of the belt so it only hits if it over flexes and try's to jump.

I want to do the spring tentioner bit need to find one I can get to fit fully.

Found a uk supplier of good 12pk belts so give one a go and see if it fails the same.

It has been fine for 6-9 months.

the likes of Hayley bearings do Gates and should be able to get most any belt.
I bought my old 12 ribs from Beeline online, but dont think they exist anymore.

I had tried Optibelt, but they seemed to stretch like fook.

[Behold81]

stevieturbo said:

the likes of Hayley bearings do Gates and should be able to get most any belt.
I bought my old 12 ribs from Beeline online, but dont think they exist anymore.

I had tried Optibelt, but they seemed to stretch like fook.

I'm trying a Goodyear gatorback. Seem to get good feedback as a solid belt. Issue I find is length is hard to find. Must be 1650-60. 60 is best as it clean clears the PAS nose.

Simply bearings seem to have a good range if belts with many major manufacturers.

[stevieturbo]

The wider you go, the less range of lengths you'll find.

But bigger companies like Hayley are able to get the belts cut from the sleeves in some cases, so might be able to get a wider range of lengths, and in any width.

10 rib is much easier to get a huge range of lengths though, but 12's are available too, just a little harder to find.

[Behold81]

Yeah simply can do the same on ribs on certain sizes easily. Bit the Goodyear is right size on the shelf. Try and see its all I can do.