Posted by Chris Case [76.212.213.22] on Thursday, July 19, 2012 at 12:13:21 :
In Reply to: Crank Pulley? posted by CSCameron [68.228.198.56] on Tuesday, July 17, 2012 at 00:03:20 :
A big groove at 0 and a smaller one at 5° advanced. All of mine had the stamped indexes pitted away so bad they were unreadable by flashing light.