Re: 147 cambelt mileage change notification
Dear All the problem I have been able to deduce from an ex Alfa tech employee is that the affected TS engine's lower pulley is a small diameter and with the load of the head cams it is prone to strip the teeth on the belt and not physically snap (however same result occurs). Alfa cannot rectify this on the engine hence their decision for replacement to occur at 36k intervals due to high number of failures and as most start to fail from around 40k (mine went at 46k). The points I am challenging Alfa is I purchased the car with stated service intervals and costs but find I am having to pay for an extra cam belt change. This is almost a warranty issue as its the engine design that's at fault. Plus they did not send anything from head office, the dealership with regards to this which is to my mind almost a recall notice.
If anyone does have a failure and the head is replaced or rebuilt it is strongly recommended that they also replace the crank shells as these can also be damaged and can fail shortly after the head change. This will result in another large bill which would have been cheaper if done with the head. I believe the JTD is a different design so not the same problem, the 36k check being visual on the belt, water pump and tensioner.