[johnbuckley]

In about 100000 miles of A driving over a couple of decades I have had 1 fibre gear mash up and 1 fibre gear loosen on the central metal section. So from then on it has metal gears only for me. Les Andrews book diagaram p 1-325 is also slightly wrong .. Here'sa picture from Tom Wesenberg showing correct relation of crank keyway to timing marks. Miff... I wrote an article on how to change the timing gear a few years ago, if you want me to email it you let me know.