Here are a couple of pics of the valve spring compression tool I made.
It is a 3/4" x 4" pipe nipple that I bought at the local hardware store for 0.89$ + taxes = 1.03$ (Canadian) and a woodworking bar clamp.
Cut a slot down each side of the nipple about .25" - .375" wide and made the end which will sit on the spring a little larger, like a pear or tear drop.
Drill a hole thru the nipple at the other end so you attach it to a bar clamp with some wire, allowing you to have two hands to compress the spring.
Ken Van Barneveld