BSA Owners' Club Workshop Discussions

The BSA Workshop => Singles => Topic started by: rustyboots on 12 Mar, 2025, 10:53

Title: B31 circa 1955 ish, Swing arm. Question relating to gearbox oil level
Post by: rustyboots on 12 Mar, 2025, 10:53
Hi all
B31 circa 1955 ish, Question relating to gearbox oil level .

With the bike as level as possible on main stand,
 
When i removed the oil level plug a small amount of oil drained out, about half a cupfull, is that now at the correct level or do i need to add oil?.

Had thought about draining completley and refilling with specified amount but currently cannot find the drain plug?, would much rather do this than just leave old oil in it.

Really awkward working with bike at ground level when your older.

Any tips please.

Mark
Title: Re: B31 circa 1955 ish, Swing arm. Question relating to gearbox oil level
Post by: DAVE BRADY on 12 Mar, 2025, 11:32
Hi Mark,

Did you get a workshop manual or owner's handbook with your bike?  If not, it is really worth getting some.
They show where drain plugs etc are located and the oil levels required as well as a lot of other useful stuff.

Dave. 
Title: Re: B31 circa 1955 ish, Swing arm. Question relating to gearbox oil level
Post by: rustyboots on 12 Mar, 2025, 13:13
Quote from: DAVE BRADY on 12 Mar, 2025, 11:32 Hi Mark,

Did you get a workshop manual or owner's handbook with your bike?  If not, it is really worth getting some.
They show where drain plugs etc are located and the oil levels required as well as a lot of other useful stuff.

Dave. 
I have a Haynes manual thanks
Title: Re: B31 circa 1955 ish, Swing arm. Question relating to gearbox oil level
Post by: JulianS on 12 Mar, 2025, 13:42
Swinging arm gearbox drain plug with arrow pointing to it.
Title: Re: B31 circa 1955 ish, Swing arm. Question relating to gearbox oil level
Post by: rustyboots on 12 Mar, 2025, 14:11
Quote from: JulianS on 12 Mar, 2025, 13:42 Swinging arm gearbox drain plug with arrow pointing to it.

Cheers Julian,
 that's exactly what i needed.
Mark
Title: Re: B31 circa 1955 ish, Swing arm. Question relating to gearbox oil level
Post by: DAVE BRADY on 13 Mar, 2025, 10:11
Hi,

There is quite a lot of information in the Members' Area of the BSAOC website and it is always worth having a look on youtube as there are some very useful videos of most jobs to do on a bike.

Dave.