Originally Posted by onehundred80
I am assuming you mean aligned to the other pulleys. In which case it will not really prove anything if the grooves are a different distance to the front face.
Whoever made these pulleys had best look at their design and dimensioning and if that is OK look at the machinist who is making them.
From what I have seen they consist of two parts bolted together. Each part should have a datum face and all the machining dimensions should come from the datums.
My guess is that the design is correct and the machinist is in error.
These things cost a lot of money for what is a simple item, with no damper they should only cost about $350 to $400 to make and the rest is gravy.
Let's face it this is not rocket science, just a simple turning, milling and broaching exercise any competent technical student could do.
My understanding is that the pulley has a mechanical dampening system built in....not just a simple AL wheel on a steel hub....
I do agree that is sounds like the machinist may be making some kind of error... there have been a few of these reported.
My original 181 had an undersized hole(~.002"-.003")on the steel hub and would not go on the crankshaft... the replacement slipped right on.