After eliminating all other possible causes, bearings etc, I traced the cause of the noise to what I thought was the problem ,a worn pulley wheel. However after removal of both I could see no signs of obvious wear. I preceded to replace the pulley wheel and noticed that it went on easily but had a pronounced waggle when on the spline before replacing the fixing bolt. My question is should the pulley wheel be a tight fit before fitting the bolts and should there be no movement at all, ie side to side.
