Timing Belt Walk

[Simon-S14]

Got a prob with my neo 25, started it up and it made a weird as hell noise. traced it down to the timing area and took the cover off and found the belt to be walking forward all the way and rubbing on the cover.

recently had a new water pump and timing belt on. tensioner and idler new also. What could be the issue? im suspecting bent idler stud at this stage causing idler to be on an angle.

[MBS206]

I'd be going with the bent stud or bolt.

Mine walked off majorly when the tensioner didn't sit flush.

Pull it all off and check it.

[R31Nismoid]

Yep - as you changed the idler/tensioner, i would be looking there.

[Cartman]

aswell as bent idler or tensioner bolt/stud, are both plates still on the proper way down on the bottom pully

[Don Dada]

+1 check the plate on the crank that is designed to hold the belt in place...will have to take off the balancer tho

[Simon-S14]

cheers guys i'll pull it all apart this arvo.. was a bit too hot to do it yesterday... damn alloy rads.. get so warm!

[Fry_33]

Just backing up what others have said already, check that everything is straight and in line. Also check the flanges on the crank sprocket/pulley are hard up against the sides of it. All timing belts will track to one side or the other due to the way they are manufactured, the flanges are their to keep them from tracking off. If one of the pulleys or idlers etc are misaligned then it will force the belt to track incorrectly. If part of the belt is running over the edge of a pulley do not drive it as the belt could become damaged and fail.

Good Luck.

[Simon-S14]

all sorted, was the idler stud, had a slight bend in it and the idler was not sitting flush with the block. New stud and put back together and its sweeeeeet as now