Hello folks,

I am replacing the polybelt tensioner damper on my M102 (2.3) engine. I got the idler wheel off OK and applied a Torx 30 bit to the retaining bolt at the top of the damper. Unfortunately the tool was not of the required quality and I shredded the head.

I'm slightly at a loss as to what to do next. I don't want to pull the whole tensioner assembly but drilling the bolt out might prove tricky without removing the radiator.

What would a professional shop do?

(For readers in the UK, this star (Torx compatible) bit came from a high street chain better known for selling bicycles and is stated to be of professional quality. Well, the splines bent under firm hand pressure from a 3/8 drive....)

Thanks for any help.

Krolroger