The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => Gearbox, Clutch, Primary => Topic started by: anjimehra on 14.10. 2015 14:21

Title: 1961 Super rocket gearbox casing
Post by: anjimehra on 14.10. 2015 14:21
Hi guys
Don't have a sample to check, but will the gear box shell of a swinging arm BB 31 / 33 be a match for the Super Rocket box. Something other than oil has run in the box !!
Anji
Title: Re: 1961 Super rocket gearbox casing
Post by: chaterlea25 on 14.10. 2015 14:40
Hi, Anji,
Quote
will the gear box shell of a swinging arm BB 31 / 33 be a match for the Super Rocket box.

Yes same part, same gearbox (STD)

HTH
John
Title: Re: 1961 Super rocket gearbox casing
Post by: Rocket Racer on 15.10. 2015 01:54
The only obvious changes to the swing arm A/B gearboxes are between early and late boxes which have a slightly different clutch cable abutment. The early ones have a slot and are threaded, while the later ones have just a hole and no threaded clutch cable adjuster at the gearbox end.
Title: Re: 1961 Super rocket gearbox casing
Post by: anjimehra on 15.10. 2015 16:34
Hi, Anji,
Quote
will the gear box shell of a swinging arm BB 31 / 33 be a match for the Super Rocket box.

Yes same part, same gearbox (STD)

HTH
John
2

Hi John
Thanks a ton. Those are more easily available here. Bought this bike in 1964 for Pounds 40 or so & rode it back to India in 1965 with a classmate & his brother . Sold it in 1968 for 150 quid & bought it back in 1983 for 700 quid. 4 or 5 owners in between 68 & 83
Ride safe
Anji
Title: Re: 1961 Super rocket gearbox casing
Post by: anjimehra on 15.10. 2015 16:35
The only obvious changes to the swing arm A/B gearboxes are between early and late boxes which have a slightly different clutch cable abutment. The early ones have a slot and are threaded, while the later ones have just a hole and no threaded clutch cable adjuster at the gearbox end.

Thanks Rocket racer. Will start the hunt now
Anji