anyone had this tensioner fail? This may be useful to those that are handy with a spanner! Mine recently developed a rumble and I could visibly see the pulley wobbling when the engine was running. Priced up a new tensioner which worked out around £130 online, however I decided to dismantle the one I had and see if I could replace the bearing. Bought a new high speed 6303 skf bearing for £4.50 you remove the tensioner mounting bolts x2 lock the tensioner using a drill bit or small screwdriver loosen the large centre bolt, its a male torx remove the pulley and drill the 5 pressed rivots, the pulley will now split in half and you can remove the bearing, replace with the new one and assemble again. I used 5mm rivots to join the pulleys again. Job jobbed and £125 saved! The other belt tensioner uses the same bearing although is a plastic pulley, I havnt yet tried to replace it!