I avoided it by exchanging my old SDI for a 2.8 TDi with its gear-driven pump!
that option is out of question for me just now as mine is snapped and i need it to go in time for weekend (or maybe i don't need for weekend after all)
went off on bike- got a belt for £20- bunged it on in the car park i was stranded in and drove it away- tensioner a bit noisy but that's another story for another day...