Search found 3 matches

by dynadavid
22 Jun 2009 14:36
Forum: Tre e mezzo
Topic: 3 1/2 engine rebuild
Replies: 3
Views: 4606

Well, I finally got to the bottom of the problem- I marked up the flywheel and carefully counted crank revolutions while turning the back wheel and disengaging the clutch/moving the gear lever. The action is nowhere near as slick or positive as some Japanese boxes I have worked on, but all the cogs ...
by dynadavid
18 Jun 2009 12:34
Forum: Tre e mezzo
Topic: 3 1/2 engine rebuild
Replies: 3
Views: 4606

No, I didn't disturb the selector stop plate- I left it bolted into the rhs crankcase half. I can't figure it out- I don't even know if the lowest gear I can engage is actually first gear or not. Does anybody know how many times the crankshaft rotates for one revolution of the rear wheel when the bi...
by dynadavid
18 Jun 2009 10:00
Forum: Tre e mezzo
Topic: 3 1/2 engine rebuild
Replies: 3
Views: 4606

3 1/2 engine rebuild

Hi folks, I have just rebuilt the engine on my 3 1/2 drum brake sport and I have a problem with gear selection. The motor is back in the bike with everything back on apart from the barrels. I followed the manual very carefully when building the moter- the gear cluster and selector forks are in perfe...