Tom,

It is possible the valve is bent, but I'm able to move the valve about an inch up/down and spin it without any binding or excessive rubbing with valve guide. I'm pretty sure it didn't jump time because I can rotate engine manually without valve/piston contact even with #4 exhaust valve sticking open about a 1/4 inch.

Chuck,

Yes, there is a gap between rocker arm/puck when the valve should be closed and cam/rocker/puck are not holding valve open.

The valve stops suddenly and spins freely without any binding.

The valve guide appears to be straight and is inserted into the cylinder head up to the circlip that prevents guide from going into head further (I believe this indicates the proper depth when installing valve guide).

I will compare valve guides hopefully later today.

Thanks for your suggestions!

Justin