Gear box gear shift selector forks

[a101960]

OK everybody, here is an update. I have now spoken to Len Haggis, and he thinks that the problem that I am having is more likely to be due to wear on the teeth of the quadrant (67-3347) so I have ordered one of those and the two gear shift selector forks. They have to come out to gain access to the quadrant so while I am at it I will change them anyway for peace of mind. The total cost is £45 that is for to new selector forks (£15 each) and the quadrant also £15. As a matter of interest the selector forks that were offered on Ebay were priced at $99 (£78) for just one, plus shipping and taxes. Quite a big saving by buying from Len Haggis! Thank you all for the interest you have shown, and for your help, and suggestions.
John

[duTch]

 

so I have ordered one of those and the two gear shift selector forks. They have to come out to gain access to the quadrant so while I am at it I will change them anyway for peace of mind.

 For what it's worth, I think the quadrant (67-3347) is in the inner cover/biscuit/sandwich/sammidge....similar to, but different from Plungie box...so no need to remove the selector forks to change it...but your call

[a101960]

For what it's worth, I think the quadrant (67-3347) is in the inner cover/biscuit/sandwich/sammidge....similar to, but different from Plungie box...so no need to remove the selector forks to change it...but your call

Dutch you are quite right. Just checked out the BSA gearbox dismantling instructions, and as you say no need to remove the selector forks. I told you I had no mechanical apptitude!

[duTch]

 

I told you I had no mechanical apptitude!

 Neither did I until I owned a BSA, and still only know enough to be dangerous. .. 

 But if changing the quadrant doesn't fix it,  and you go for changing the selectors, then is a clutch off to remove the mainshaft to access the selectors....