I just bought a third crank shaft pulley for my 350 chevy to line up my power steering pump, I have removed the three bolts holding the two existing pulleys,but it appears that the damper bolt washer is holding those pulleys on also, any ideas how I can add this pulley without trying to get the damper bolt off , as the motor is in the car and there is no room to get an impact wrench in there, it's an automatic car so using a socket and breaker bar won't work, thanks in advance for any ideas
You could open the center hole up but I'd caution you against doing this because the outer pulley center hole has a lip that locates it to the existing pulley so they run true. Without the center hole locating the outer pulley, the bolts would be all there is to locate/center the pulley, and the holes are loose enough that the pulley could have some run-out.
So, best bet and correct way is to remove the damper bolt. The way suggested above is as good as any, if you have a helper.
Have you tried loosening the bolt w/the belts all in place? Often that's enough (along w/the engine compression) to allow the bolt to be loosened. If you have a manual trans, put it in high gear, apply the E-brake/chock the wheels and give it a try.
If not, an old trick is to remove the plug from an easy-to-reach cylinder and bring it up to TDC on the compression stroke. Then turn the crank CW some more (past TDC), and using clothes line cord or similar, fill the cylinder up w/the cord. Rotate the engine CCW until it stops turning, then you can loosen the bolt.
