NST (NonStopTuning) Pulleys. Info, Specs, User Data...

[fmicle]

Originally Posted by Aothachos

so eventually overtime I will have to replace the pulley? Is there a set certain amount of miles that NST recommends to replace it if so? It has been about 25-30 thousand miles since I installed these. I think it is also why my belt is squeaking everytime i start up because it is loose due to friction engraving its place in it lol

Hmm, honestly, I don't know, but then aluminum is lighter and softer than steel, so I wouldn't be surprised at all if it wears off much quicker. Can you really see/feel a groove where the belt sits? If it's just polished shiny I wouldn't worry too much. It would be interested to compare with an older OEM water pulley, see if you get the same wear after a while.

My belt is squeaking too, 1 in 10 starts I'd say, because I couldn't get it as tight as it should be. But I'm working on adapting the Scion xD belt tensioner to the Yaris and if I can make it work, I'll post the DIY