QUOTE FROM EARLIER POST: "Now there is a new twist to as what may have been the real culprit of the belt failure........Yes no doubt there was substantial oil contamination.....but....the 10mm nut on the adjuster was able to be removed while bolted in place with my fingers. 2 to 3 turns and ....Boing went the spring......" The cam belt tension is basically constant, it is locked down by the bolt that goes through the center of the tensioner bearing. Once the tensioner is "set" during belt installation...bearing cannot move unless the center bolt loosened - and that would be an immediate disaster. While it is VERY disturbing to hear that the 10mm nut was only several turns onto the threads...it is probably not the root cause of the belt failure. The shearing off of belt teeth as shown in the pictures...suggests a failure of the belt material itself.