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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Gearbox Problem 1950 Twin
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<blockquote data-quote="greg brillus" data-source="post: 37420" data-attributes="member: 597"><p>Hey Rob, Yes you are correct....perhaps when the sleeve got jammed on top of the selectors..it may have put a burr on the tubular part of the fork and now it is stuck. Just support the selector fork over the jaws of a vice or similar and tap the G30 shaft out with a soft hammer. Deburr the selector fork and your good as gold. Remember to offer the cluster and selector forks/ camplate all together, using a long screwdriver or tapered pry bar inserted in the hole in the end of the layshaft (the one in your left hand...) to support the shaft whilst you guide it all back in. Remember to set up the camplate in 1st gear...looking from the top, the plate rotated hard around anticlockwise. The first gear detent on the plate visible pointing straight out at you on the left hand side. But firstly Put the G40/1 Shaft into place on the right side through the G50 plate bearing and hang a spanner or light fitting visegrips on the other end facing to the rear of the bike, so that the weight of the spanner keps the bevel G39AS HARD AROUND so as to line up 1st gear, this is to get the "Timing" of the bevel gears correctly in mesh.....veeeeery important..this one.........cheers 4 now...Greg.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 37420, member: 597"] Hey Rob, Yes you are correct....perhaps when the sleeve got jammed on top of the selectors..it may have put a burr on the tubular part of the fork and now it is stuck. Just support the selector fork over the jaws of a vice or similar and tap the G30 shaft out with a soft hammer. Deburr the selector fork and your good as gold. Remember to offer the cluster and selector forks/ camplate all together, using a long screwdriver or tapered pry bar inserted in the hole in the end of the layshaft (the one in your left hand...) to support the shaft whilst you guide it all back in. Remember to set up the camplate in 1st gear...looking from the top, the plate rotated hard around anticlockwise. The first gear detent on the plate visible pointing straight out at you on the left hand side. But firstly Put the G40/1 Shaft into place on the right side through the G50 plate bearing and hang a spanner or light fitting visegrips on the other end facing to the rear of the bike, so that the weight of the spanner keps the bevel G39AS HARD AROUND so as to line up 1st gear, this is to get the "Timing" of the bevel gears correctly in mesh.....veeeeery important..this one.........cheers 4 now...Greg. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Gearbox Problem 1950 Twin
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