Hi all,

 

My 2002 Skoda Octavia TDI, keeps on snapping alternator belt pulleys :( I have had 4 now, and a new alternator and its just snapped again!  I really am getting fed up of them snapping now. Has anyone got any ideas what can be causing this? 

 

 

I have spoke to the garage who keep fitting the pulleys, and TBH they seem at a loss. They are now saying replace everything what is ran on that belt to cure it? thing is this would not be cheap. 

It may be worth mentioning, it never snapped any pulleys until I had a full cambelt kit fitted, once that was fitted the tensioners started to snap :( The mechanics when fitting the cambelt, snapped the first pulley, since then its been snapping them the whole time. I am unsure how they snapped the first pulley, but it was during fitting the cambelt 

 

 

 

Thanks

CK

 

If the problem is the auxiliary belt tensioner arm snapping, it's usually the one way clutch in the alternator pulley seizing that causes the tensionor arm  to break. 

If the belt's too long, the tensioner can come into contact with the alternator pulley.

The crankshaft pulley is also a vibration damper. In theory, it only goes on one way but if a 'mechanic' is determined enough it doesn't seem to stop them :(

Yea I think we are a loss of what else it can be, as everywhere I look seems to point at the alternator. But I replaced the alternator once, then took the new one back under warranty due to this fault and had that replaced. So it has carried on doing this with 2 brand new different alternators.

Ive replied to this on seatcupra.net

It should have a one way clutched alternator pulley has this been changed?

Theres a roller under the alternator that seizes has this been changed.