I think you are right, It has done just under 300 000KM, but have not come across this happening before,, changed the housings over today, had to take out the crankshaft pulley on both the engine I took the housing off and on the one in the car
When I looked at it after it broke it had not sieze but was a bit noisy, I do not know how constant the tension is from the tensioner, if it is back more does it put a bit more tension on belt? other thing I will look at is are all the pulleys in line? but think it is just old age but always good to ask to see if anyone else has had samething
How hard was it changing the housing?
not too hard to change, needed to get crank shaft pulley off which was hardest bit,changing casing not hard about 8 bolts, and a stud on the cylinder head that I took out so I did not need to take sump off but then I dropped the sump anyway as I could not get new casing in and be sure sump gasket was in right place, I have not managed to refit fan as it seams to be catching bottom guard, I will check engine mountings, they have only been in about 3 years but wander if they have allowed the front of engine to drop a bit, might be what caused the problem with fan.
Yes there was one there but it had came out, not sure if it came out at the time of the problem or had came out before, but think it most likely pulled out as the bearing came out
