Disaster! A3 Cam belt failed but not snapped
Its what everyone dreads- cruising along the m271, slowing down for the last junction and like someone has cut your ham strings, whack! my poor engine falls over. I pull over and join the RAC who kindly took me home. Tried starting the engine but no compresion at all. Starting to panic at the thought of a major engine failure i check oil and water, neither of which had mixed so i ruled out head gasket. I prise back the cover a little, look at the cam belt and it appears to be tight on the upper pully so now im confused. RAC man turns up and i turn the engine over while he looks at the top of the cambelt and it doesnt move a bit. He told me that it has most likely not snapped but stripped the teeth off the belt where the crank pulley is so the crank is moving but not turning the belt.
Looking at my service history the belt had been changed at 58k and the car had now done 98k. this leaves the belt with 20k of life before it needs changing. It was done by southampton audi.
What could have caused this? Im thinking that maybe the garage had used the wrong oil at my last service, 6 months ago? Or maybe Audi had not changed the idler pully when replacing the cam belt? Maybe the water pump seized? Either way its buggered now and i need to know who to phone up first as im sure this could have been avoided if it had either been checked at the last service or the belt was faulty or something else.
Have any of you guys heard of this kind of failure. Your help would be really appreciated. Also have any of you got a spare S3 engine kicking about which you would like to sell to me? (or if your feeling sorry for me, give to me!!?? hehehehe)
Cheers for now
Dave with a broken A3 qts
Something to consider before taking your pride and joy to Southampton Audi for a serv
Well... Got it repaired for just under 1000 smackers. Water pump had not seized, Cams had not seized, infact the only thing that was damaged was the belt. teeth stripped around the crank pulley. The belt looked like it had never been replaced. The bolts to the lower cam cover still had the original thread lock on em and showed no signs of being removed in the past. The belt was brittle and shiney. The teeth were worn into a square profile. You could actually peel them from the belt. the belt it's self was about half the thickness of the new one and was hard and had lost all of it's pliable feel. This was the original belt, Im sure.
Something to consider before taking your pride and joy to Southampton Audi for a service, im sure.
Cheers for all your help guys. She sounds lovely and quiet now too. Oh and the dammage was all 8 exhaust valves bent.