Last night I went to put the pulley back on the power steering pump but found the shaft on the rebuild was a touch bigger than the pulley. I took a small sanding drum on a dremmel and took a couple passes on it. Now it slides on snugly with a few taps of a hammer. Will this be okay, or did I screw up here? I didn't want to exert too much effort on the pump and this was all I could think of. Tonight a buddy told me about a zero clearance fitment where you chill one part and heat the other to make them work.

 

Is this a pulley with a keyway and nut or a press-on pulley? If the former, no problem. If the latter, big problem.

 

does the pump shaft have external or internal threads?

 

Yes the shaft is (woodruff) keyed, and externally threaded for a large crown nut to retain the pulley. So I might be okay then?

 

You should be fine, just curious why it did not fit right in the first place.

 

ditto

 

I expected a tight fit too, but found there was a slight difference when I checked the shaft and pulley with a caliper. Not wanting to exert too much force on the pump, I opted for a quick pass with the small sanding drum on a dremmel tool. Apparently, I got just enough to make it go on. Perhaps I should have just taken it to a machine shop instead.