Large size Whitworth/British Standard wrench sizes needed for Commando?

APRRSV

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Hi All,
Do any of you have an encyclopedic memory of the Whitworth/BS or other English system wrench sizes needed for a Commando? and where they are used? I am only interested in any sizes larger than 9/16 W/5/8 BS.

Thanks,
Ed
 
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Hi All,
Do any of you have an encyclopedic memory of the Whitworth/BS or other English system wrench sizes needed for a Commando? and where they are used? I am only interested in any sizes larger than 9/16 W/5/8 BS.

Thanks,
Ed
The fork tube top bolts are- 3/4W.
Final drive sprocket nut - 7/8W (close to 1.5 inch)
 

L.A.B.

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The fork tube top bolts are- 3/4W.
My original cap bolts are 1-5/16 (1.313") AF.

3/4W (1.300") socket is too small.


 

drp

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I just took mine off last night. I used a 3/4 whitworth socket (a 1-5/16 will also work but it's a little looser) and got nut below with a thin 9/16 tappet open wrench from my "old flathead ford V-8 tool box".

Other than the ones previously mentioned the other "large" sockets/wrenches required are for the large sump drain plug (I've used an 1-1/2 box wrench but it's a little sloppy) and the axle nuts where I use a 15/16 box wrench
 
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My original cap bolts are 1-5/16 (1.313") AF.

3/4W (1.300") socket is too small.


Since a pic tells more than a thousand words..
15/16 does fit , but is a bit sloppy,
I am certain that mine are original, so Norton must have used different material.
 

APRRSV

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Thank you Peter, L.A.B. and drp. I placed an order for a 3/4 W socket and a 7/8 W combo wrench from BF. I'll see how the 3/4 W works for my fork top nuts.

Ed
 
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at the risk of heresy; a 33mm socket is a very nice fit for the fork top nuts.
 

APRRSV

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Thank you Concours, Dave and Dave,
The slimline wrench from MSC looks very interesting. I do have a 1 5/16 socket if needed. The 33 mm socket I don't have.
I will see what I need. The slim line wrench looks good for checking tightness without removing handlebars. Seems to me I have one somewhere. I'll search.

Ed
 
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