Whitworth Fasteners?

Status
Not open for further replies.

Dan1950

1974 MK II Roadster
VIP MEMBER
Joined
Aug 19, 2021
Messages
1,369
Country flag
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?
 
You'll know. Engine & gearbox.


 
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.

 
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.
 
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.


 
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.
 
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...).
 
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.
 
I am planning on purchasing or fabricating tools to remove the entire primary drive.
 
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.
 
The clutch compression tool cam with the motorcycle.
 
Is there a tool for pulling the engine sprocket?
 
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!
 
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?
 
Status
Not open for further replies.
Back
Top