gear set markings

[Colin Wilks]

In my recent search for a sports engine camshaft gear I had a chat with Vince Leek, who had had some timing gears manufactured in the early 2000s. He told me they were all the same spec, taking no account of the differing centres between the crankshaft and the camshaft, and that he got no complaints. He said the backlash he went for was .004”, achieving this by shimming the dynamo housing and selecting the crankshaft gear to suit.

The timing marks on my gears are “0 0” on the camshaft gear and “0” on the crankshaft gear.