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Norton Commando Mk111 engine number #754645
10/31/18 9:27 am
10/31/18 9:27 am
Joined: Aug 2013
Posts: 6
England
Servodyne Offline OP
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Servodyne  Offline OP
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Joined: Aug 2013
Posts: 6
England
Hi all,
I've recently purchased quite a nice Norton Commando Hybrid, in as much it's a Mk11a frame with a Mk111 engine wrapped up in Fastback styling. Unfortunately the engine number is giving me a few sleepless nights worrying whether it's legitimate, although both frame and engine numbers do tally with the V5 log book.
The engine number starts with 850 followed by 537*** with the same six digit number on the Mk111 gearbox. I am led to believe from what I have seen on various websites including Norvil that the Mk111 engine should have a number starting 325*** .
Has anyone seen this before?
Many thanks
Jim

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Re: Norton Commando Mk111 engine number [Re: Servodyne] #754646
10/31/18 9:46 am
10/31/18 9:46 am
Joined: Mar 2006
Posts: 3,825
Norfolk, UK
L.A.B. Offline
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L.A.B.  Offline
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Joined: Mar 2006
Posts: 3,825
Norfolk, UK

Originally Posted by Servodyne
I am led to believe from what I have seen on various websites including Norvil that the Mk111 engine should have a number starting 325*** .


Yes (but not all). The 'last' 850 Mk3 Commando was 336539.


Last edited by L.A.B.; 10/31/18 9:48 am.
Re: Norton Commando Mk111 engine number [Re: Servodyne] #754652
10/31/18 10:58 am
10/31/18 10:58 am
Joined: Dec 2004
Posts: 9,607
Scotland
kommando Online content
BritBike Forum member
kommando  Online Content
BritBike Forum member

Joined: Dec 2004
Posts: 9,607
Scotland
If you post a pic of the numbers then it can be gauged whether the stamps are factory or not, 537*** sounds out of range.

It should look like this as long as you have a photobucket fix in place

[Linked Image]

Note the 3 circles with horizontal lines.

Re: Norton Commando Mk111 engine number [Re: Servodyne] #754654
10/31/18 11:14 am
10/31/18 11:14 am
Joined: Aug 2013
Posts: 6
England
Servodyne Offline OP
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Servodyne  Offline OP
BritBike Forum member

Joined: Aug 2013
Posts: 6
England
Unfortunately I don't have photobucket at the moment, but the numbers look to be in the same format with the three circles and the radial machine marks on the casing.

Re: Norton Commando Mk111 engine number [Re: Servodyne] #754655
10/31/18 11:31 am
10/31/18 11:31 am
Joined: Dec 2004
Posts: 9,607
Scotland
kommando Online content
BritBike Forum member
kommando  Online Content
BritBike Forum member

Joined: Dec 2004
Posts: 9,607
Scotland
If you are seeing the photo then the photobucket fix is in place on your PC, post you pics with some digits covered to

https://postimages.org/

and then link to them here.

There will be a story to how your numbers are what they are but no doubt a lost story. I am struggling to think of a nefarious reason for the numbers you have so suspect it was a spare engine used as a factory replacement and a number used that they expected would never be on a production bike off the line.


Moderated by  Dave Comeau 


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