Whitworth Fasteners?

[Dan1950]

From what I have been able to gather from various YouTube videos, there are both SAE and Whitworth fasteners on the MK II Commando.

Is there some sort of list or chart that spells out where these various discrepancies exist?

 

[concours]

You'll know. Engine & gearbox.

8 Piece Socket Set, Whitworth for Triumph, Norton & BSA 6 Point

8 piece Whitworth 12 point 3/8 drive socket set. If you are working on any British motorcycle or car pre 1971. Its good to have some British tools. We sell sockets an other tools for working on British motorcycles. Also, we can help you if you have any questions when working on your bike, please...

vintagetriumphsupply.com

Whitworth Combination Wrench Sets by King Dick

Whitworth Combination Wrench Sets by King Dick

mossmotors.com

 

[L.A.B.]

From what I have been able to gather from various YouTube videos, there are both SAE...

Unified, (UTS).

Unified Thread Standard - Wikipedia

en.wikipedia.org

...and Whitworth fasteners

Not all British threads are 'Whitworth' (BSW) as there are also BSF, BSC, BA, BSP, ME and a few special fine Whitworth (Whit form) threads on a Commando.

 

[Dan1950]

Unified, (UTS).

Unified Thread Standard - Wikipedia

en.wikipedia.org

Not all British threads are 'Whitworth' (BSW) as there are also BSF, BSC, BA, BSP, ME also a few special fine Whitworth (Whit form) threads on a Commando.

I'm aware of that. I am primarily concerned with using the proper tools for the bolt head size.

 

[L.A.B.]

I'm aware of that. I am primarily concerned with using the proper tools for the bolt head size.

Ok, as your question seemed to have been about fasteners so (non-Unified) fasteners require Whitworth/BS hexagon sized tools.

Spanner Jaw Sizes

Useful guide on spanner to nut/bolt relationships, and the selection and use of spanners and socket sets

www.crawford-space.co.uk

 

[ashman]

Where ever the spanners you have that don't fit, but that don't worry me as I have spanners and sockets for every thing, I have WW, AF and metric from sockets, open end spanners, ring spanners, combination spanners you name it I have everything, but I went years without a WW set and got by without but am glad I now do have the right tools for everything, only took me 46 years to get it right.

 

[Dan1950]

Where ever the spanners you have that don't fit, but that don't worry me as I have spanners and sockets for every thing, I have WW, AF and metric from sockets, open end spanners, ring spanners, combination spanners you name it I have everything, but I went years without a WW set and got by without but am glad I now do have the right tools for everything, only took me 46 years to get it right.

I went through a similar metamorphosis with my '67 A65T. I ordered some wrenches and sockets on eBay.

Norton 8 Piece Socket Set Whitworth Koken | eBay

WHITWORTH 8 PIECE SOCKET SET. IF YOU ARE WORKING ON ANY BRITISH MOTORCYCLE OR CAR PRE 1971.

www.ebay.com

BRITISH STANDARD WRENCH SET 8 PIECE TRIUMPH NORTON BSA MOTORCYCLE WHITWORTH | eBay

WHITWORTH 8 PIECE WRENCH SET. IF YOU ARE WORKING ON ANY BRITISH MOTORCYCLE OR CAR PRE 1971.

www.ebay.com

 

[L.A.B.]

Assuming this is (mainly) to do with changing the layshaft bearing (without removing the gearbox?) then sockets for 1/2"W (mainshaft nut although 15/16" AF should be close enough?) and 1/4"W (inner cover nuts) would be required.

 

[Schwany]

The gearbox lockring tool would be handy as well.

 

[Mart UK]

Off topic, but my 1/4W fits one of the Amal carb bolts (drain or banjo, forget which). Std imperial were definitely wrong. I bought ring spanners and sockets and get both out of the tool drawer, with my imperial set, before I get down on my knees (to tend the bike, not in prayer, although sometimes...).

 

[L.A.B.]

Off topic, but my 1/4W fits one of the Amal carb bolts (drain or banjo, forget which).

Banjo is 1/4"W.

 

[Dan1950]

The gearbox lockring tool would be handy as well.

I am planning on purchasing or fabricating tools to remove the entire primary drive.

 

[maylar]

I am planning on purchasing or fabricating tools to remove the entire primary drive.

The 1/4 Whit is definitely the most common, along with a few 3/16 W (close to 7/16"). The other nuts & bolts fit SAE tools, though some are oddball sizes. My first Whitworth socket and wrench sets were only 5 pieces and they cover just about everything.

 

[concours]

I am planning on purchasing or fabricating tools to remove the entire primary drive.

Motorcycle parts and spares for Norton motorbikes - Andover Norton Spare Parts - Andover Norton Motorcycles Parts - Original Andover Norton Parts

Motorcycle parts and spares for Andover Norton motorbikes: Andover Norton manufactures and supplies all Factory Spare Parts for Norton motorcycles built before 2002.

andover-norton.co.uk

Motorcycle parts and spares for Norton motorbikes - Andover Norton Spare Parts - Andover Norton Motorcycles Parts - Original Andover Norton Parts

Motorcycle parts and spares for Andover Norton motorbikes: Andover Norton manufactures and supplies all Factory Spare Parts for Norton motorcycles built before 2002.

andover-norton.co.uk

 

[Schwany]

I only mentioned the lockring tool because every time I change or check oil level in my gearbox I see where the original owner used a punch on the lockring. It looks like hell. The lockring tool would make the job simple and clean. You could make one. I could not. I don't have the machinery to do it. Much easier to just buy tools in my case. Good luck with the project. Should be easy enough. Your back is really going to appreciate that bike stand.

 

[Dan1950]

Motorcycle parts and spares for Norton motorbikes - Andover Norton Spare Parts - Andover Norton Motorcycles Parts - Original Andover Norton Parts

Motorcycle parts and spares for Andover Norton motorbikes: Andover Norton manufactures and supplies all Factory Spare Parts for Norton motorcycles built before 2002.

andover-norton.co.uk

Motorcycle parts and spares for Norton motorbikes - Andover Norton Spare Parts - Andover Norton Motorcycles Parts - Original Andover Norton Parts

Motorcycle parts and spares for Andover Norton motorbikes: Andover Norton manufactures and supplies all Factory Spare Parts for Norton motorcycles built before 2002.

andover-norton.co.uk

The clutch compression tool cam with the motorcycle.

 

[Dan1950]

Is there a tool for pulling the engine sprocket?

 

[baz]

I only mentioned the lockring tool because every time I change or check oil level in my gearbox I see where the original owner used a punch on the lockring. It looks like hell. The lockring tool would make the job simple and clean. You could make one. I could not. I don't have the machinery to do it. Much easier to just buy tools in my case. Good luck with the project. Should be easy enough. Your back is really going to appreciate that bike stand.

Yep I've often seen this on Norton gearboxes!

 

[Mart UK]

Is there a tool for pulling the engine sprocket?

Yes, it works well too. Got mine from aandover Norton

 

[baz]

Is there a tool for pulling the engine sprocket?

Yes there is it screws into two 5/16 holes on the engine sprocket
Easy to make if you have facilities you can also use a 3 legged puller if you remove the primary chain I seem to remember?