Bsa B31 Plunger Clutch Work

Another 6 spring clutch video, a few cock-ups but got it right in the end.

[@ianlawrie919]

Awesome! Great to see your thinking and resolve 👌👍

[@500dbd34]

Thanks for the comment, cheers Brian

[@mehmetbugra5069]

Amazing video mate ! Thanks

[@500dbd34]

👍

[@shingerz]

That was great to watch good stuff 👍

[@500dbd34]

Thanks.

[@iandonald5755]

Another great video, I'm currently restoring a 1946 C11 and this is one of the next jobs to do.

[@500dbd34]

Thanks, good luck with your restoration.

[@derekgee4223]

Brilliant work

[@500dbd34]

Cheers

[@nickbarber2080]

I'm prety sure all the BSA clutches I have worked on,the deep hole in the gearbox-side adjuster screw had a grease-packed ball-bearing in,for the push-rod to ride on.

[@500dbd34]

Your right, the ball bearing on mine was missing, I spotted it later and pressed in a new ball. The adjuster I made did work ok though. Thanks for the comment, never stop learning. Cheers B

[@hunterjamison4808]

Thanks for your sizing tips on the 6 spring clutch. New nylok nuts have worked well for me but 2 nuts each seems safer. I hope some day you go thru that dreaded older style gearbox. I had to replace several warn parts in my ‘51 rigid b31’s gearbox and setting the correct amount of endplay has me nervous. They don’t want much and the gaskets effect it too!😳

[@500dbd34]

Thanks for the comment, if my gearboxes work ok I tend to leave them alone, got to do one some day.

[@patricewajcberg5553]

Hello Brian. Your videos are great. I have a B31 too and I would like to know where you find your spare parts? Thanks

[@500dbd34]

Patrice, I search eBay mostley, Dragonfly are very good also. There are lots of other supplies that come up on Google. Use part numbers where you can. Good luck. Cheers B

[@retromechanicalengineer]

Great video Brian. The clutch plates were pretty poor straight from the box, Seems to be par for the course now. I wonder if you could get original BSA ones re-lined? The magnet to catch the ball was a clever trick, I'll be borrowing that. I have just uploaded my first proper D7 video, not as good as yours but I'll try to increase the quality as I go along. You could do with a pair of lock wire pliers, I've used them almost every day of my career in aviation. Mostly I engineer from a desk these days though. Best wishes, Dean in Oxfordshire. Edited for typo.

[@500dbd34]

Thanks for the comment, i'll check out those pliers, thanks again B

[@davidclapham1066]

Lovely Job. In your opinion what is the best option for clutch pushrod - split with ball bearing, split with roller bearing or solid length of silver steel. Looking forward to your next video, keep up the good work :-)

[@500dbd34]

Ive gone back to single length rod but both work OK.

[@MartynStubbsTBS]

Mr Alfonso should I grease clutch push rod before I put back ? Thanks.

[@500dbd34]

The tube through the shaft on mine was gummed up and it took a while to clear it, i polished mine and put the pushrod back with light oil. I think grease would get sticky over time but just personal preference.

[@farhanbagasaji5140]

what material is it made of?