I've heard that the cam can be damaged by using a cam locking tool to
hold the cam while tightening or loosening the cam nut.  Be forewarned!

-Dana-

> steel 3/16" X 6" long as a camshaft timing tool. 3/16 inch thick is a
> really close just file the edge a bit for a perfect and smooth fit. It
> also works great for keeping the cam from turning when tightening or
> loosening the cam sprocket bolt.