BSA Owners' Club Workshop Discussions

The BSA Workshop => Twins => Topic started by: chrisx1 on 30 Oct, 2023, 11:25

Title: Torqueing cylinder nuts
Post by: chrisx1 on 30 Oct, 2023, 11:25
How does everyone torque their cylinder barrel nuts? I can only get an open ended spanner on them. Do people have an old spanner welded onto a socket to achieve this?, and if so are there any re-calculations involved?
Title: Re: Torqueing cylinder nuts
Post by: JulianS on 30 Oct, 2023, 11:44
This what BSA said.
Title: Re: Torqueing cylinder nuts
Post by: chrisx1 on 30 Oct, 2023, 12:01
Thanks Julian.
Title: Re: Torqueing cylinder nuts
Post by: chrisx1 on 29 Feb, 2024, 15:39
In the above equation it has 12x3 as = 15. Now Im terrible at Math so can someone explain why the answer isn't 36?
Title: Re: Torqueing cylinder nuts
Post by: chrisx1 on 29 Feb, 2024, 15:46
12 x 30 divided by 12 x 3 = 10
I've tried doing this calculation different ways but the answer always comes out at 10 not 24
Title: Re: Torqueing cylinder nuts
Post by: chrisx1 on 29 Feb, 2024, 15:52
unless you type in 12x30divided by 12x3 then the answer is 90
I always wanted to be good at Math
someone please explain, I can't get 24 what ever I do
Title: Re: Torqueing cylinder nuts
Post by: JulianS on 29 Feb, 2024, 16:00
It is not written very well on the service sheet. Go back to where it says "How to calculate"

That is a fraction.

The next bit "The above represents"  It is also a fraction, the numerator, the top bit is written correctly as 12 x 30 but the denominator, the bottom bit is written incorrectly and should read 12 + 3 (not 12 x 3). They have also put in a second equals sign which makes it even more confusing, so ignore that second equals sign and you get the fraction 360/15=24.
Title: Re: Torqueing cylinder nuts
Post by: Dean Southall on 29 Feb, 2024, 16:32
See also
https://www.youtube.com/watch?v=LQiOA7euaYA
Title: Re: Torqueing cylinder nuts
Post by: chrisx1 on 29 Feb, 2024, 17:11
Thanks for the explanation. Also love the Talking Heads video.
Title: Re: Torqueing cylinder nuts
Post by: Mike Farmer on 05 Mar, 2024, 21:37
 :) :) :) :)

I now religeously use a totque wrench. I'm not sure why this is so as for many many years I never knew they existed. I dont recall ever having a problem.

Mike 8) 8) 8)