Member postings for Mike Penwolf

Thanks guys , but all credit to Colin who had the idea of the slot

Here's an update on repair progress

I bored out some nylon to hold the pinion while i carefully bored out original brass bushes , stopping when wafer thin and peeling out last bit , then hammered in some 24mm nylon66 and bored that to match the cleaned up support bushes.

Then slotted pinion 3/16 to match spline in drive shaft , shaped and hammered in new key .

I have ordered oilite bushes to replace nylon and will put tiny TIG welds to replace retaining bolts at that point

the drive shaft needed minimal filing in a few spots to clean up , and its all running really well now

when that key wears out I can extract and replace

thanks again for all advice

Yep , I think mystery solved , I think you guys are right .

the key has worn away completly , and not shown in the drawing because of the angle , but can see in the forward /reverse handle diagram a key in the sleeve

Hi I have just aquired a Bantam 1600 (AA 3061) and am trying to fix the lack of carrige drive and cross feed .

I have removed the apron and the gearbox ,although showing its age, does work.

Everything engages as it should except for the wormdrive pinion (labeled A in photo, and part 201-141 in diagram ). I cannot see how it was supposed to engage with the drive shaft (labeled B) inside it is smooth with no sign of a missing key , and the diagram does not show a key so if anyone knows how this was supposed to work I would be really grateful for some help . thanks , mike