So today I finally got to really cleaning and painting the pile of rusty, greasy parts that I'm hoping to assemble into a functional car... also took a look at the mess of pulleys I had and tried to make sense of it all. It looks like on a late standard V-8, the crank pulley is about 6.5" and the water pump pulley is about 7" - so the solid fan turns a little slower than the crank. On a car with a viscous fan, it looks like the crank pulley is about 7-1/4" unless you have a R1 damper in which case it is 7", and the water pump pulley is 6-1/4" so the water pump is actually turning FASTER than the crank. Is this correct?
After looking in the parts book some more, it appears that there is a different part number for the power steering pulley on JT engines than for regular engines, but the PS pulley from my old engine seems to fit fine. (and I spent enough time derusting it, too...) SASCO does not list any stock of the JT pulley. Is this really a big deal? what's the difference, anyway? The P/S pulley only drives the P/S pump so as long as it won't throw belts I really don't care if it's 100% correct...
Still trying to see if I'm able to find an A/C pulley that works on the crank. Based on the numbers above, with the R1 damper and the viscous drive fan pulley, and the A/C fan pulley being about 6-1/8" I would need a crank pulley for the A/C about 6-3/4" - actually a shade larger, but my measurements weren't the most precise as I was estimating pitch diameter...
this is all assuming of course that all the parts I have are what I think they are...
nate