Author Topic: gearbox to standard  (Read 134 times)

Online bsa-bill

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gearbox to standard
« on: 11.06. 2020 12:38 »
I have all the bits from a standard (Flash S/A) gearbox, my brother has a goldie and thinks he would prefer a standard box in it, just wondering if there are any reasons the standard bow internals would not fit into the Goldie box shell, bushes spring to mind
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online JulianS

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Re: gearbox to standard
« Reply #1 on: 11.06. 2020 13:02 »
Use the Gold Star layshaft and thrust washers with the STD layshaft pinions.

The STD mainshaft and pinions should fit OK.

The RRT2 mainshaft will not fit the STD sleeve pinion.

Speedo will probably be a bit out using the RRT speedo gears.


Online bsa-bill

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Re: gearbox to standard
« Reply #2 on: 11.06. 2020 13:25 »
Thanks, Jullian

All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online berger

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Re: gearbox to standard
« Reply #3 on: 11.06. 2020 14:11 »
bsa bill if it is just first gear that is a problem he could fit a 26t A65 layshaft gear and get a std box 17t gear turned down to make the shoulder that fits in the sandwich case next to the main shaft small ball race.  I have done this and even though it's a little bit taller than 16t and 27t it is better than 19t -24t rrt2 first gear

Offline chaterlea25

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Re: gearbox to standard
« Reply #4 on: 11.06. 2020 18:55 »
Hi Bill,
As mentioned by Julian
DO NOT mix the Speedo gears
It is possible but not easy to swop the layshaft worm from one to the other

John
1961 Super Rocket
1963 RGS (ongoing)

Online bsa-bill

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Re: gearbox to standard
« Reply #5 on: 11.06. 2020 20:22 »
Thanks guys - I think it's going to be a bit more work than he wants to do and he was talking of the five speed option also, I just wondered as I have the std internals whether it would  be possible to just swap, but think I already suspected there would be more to it.

Once again many thanks
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco