http://s1302.photobucket.com/user/graham28slater/media/C7ED7936-990B-4965-B3C2-0FA67ED5810B-22858-00000472E0FDE7C5_zpsc476bfd4.mp4.html
As above, is this normal? Neither the key or the pinion show any signs of wear.
When I came to put the timing pins in, with the crank locked the cam pulley was about a tooth away from lining up. Suppose the slack on the key could have caused it. Any help appreciated. Graham