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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
What More Do I Need To Know About The G49 and Its Adjustment
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<blockquote data-quote="oexing" data-source="post: 161280" data-attributes="member: 1493"><p>Still I believe this is only second best place to have stops in the gear change linkage. Look at lever lengths, the stops which squeeze the centralizing leaf springs at the G 49 alu bracket, sit very close to the pivot of the gear change lever. And when you think of those roughs with their heavy boots hitting into first gear, all that force is four times higher at these stops . Not great for the leaf spring and same for the alu bracket. Additionally, any wear and adjustment will produce four times the position change at the end of the actuating arm with consequence to the rest of the components concerned with gear changes in the box. Also you´d hope for the G 49 to stay put in its settings despite all brute force from the gear lever, any wear of other components following these stops will compromise the behaviour of gear changes. So keeping all matters in mind I decided on the dowelled alu stops as close to the gearbox action as possible, at the G 59AS faces. Loads from heavy boots will not be higher at the G 66 actuating arm end so no big deal for my alu stops there and a durable design hopefully. In my engines all adjustments of components from there along the linkage train towards the foot lever are only used for setting springs at their middle position of up and down shifts, but no other stops used, so not critical in their settings, wear in various components no factor - unlike with stops as shown above in the G 49. So a no-no for me, "the better is the enemy of the good" .</p><p></p><p> Vic</p><p></p><p>[ATTACH=full]52595[/ATTACH]</p><p></p><p>[ATTACH=full]52596[/ATTACH]</p></blockquote><p></p>
[QUOTE="oexing, post: 161280, member: 1493"] Still I believe this is only second best place to have stops in the gear change linkage. Look at lever lengths, the stops which squeeze the centralizing leaf springs at the G 49 alu bracket, sit very close to the pivot of the gear change lever. And when you think of those roughs with their heavy boots hitting into first gear, all that force is four times higher at these stops . Not great for the leaf spring and same for the alu bracket. Additionally, any wear and adjustment will produce four times the position change at the end of the actuating arm with consequence to the rest of the components concerned with gear changes in the box. Also you´d hope for the G 49 to stay put in its settings despite all brute force from the gear lever, any wear of other components following these stops will compromise the behaviour of gear changes. So keeping all matters in mind I decided on the dowelled alu stops as close to the gearbox action as possible, at the G 59AS faces. Loads from heavy boots will not be higher at the G 66 actuating arm end so no big deal for my alu stops there and a durable design hopefully. In my engines all adjustments of components from there along the linkage train towards the foot lever are only used for setting springs at their middle position of up and down shifts, but no other stops used, so not critical in their settings, wear in various components no factor - unlike with stops as shown above in the G 49. So a no-no for me, "the better is the enemy of the good" . Vic [ATTACH type="full" alt="P1070908.JPG"]52595[/ATTACH] [ATTACH type="full" alt="P1070914.JPG"]52596[/ATTACH] [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
What More Do I Need To Know About The G49 and Its Adjustment
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