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New N15 project, new to Norton #793765 12/24/19 1:26 am
Joined: Feb 2017
Posts: 9
ron herman Offline OP
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I'm starting a new build-it's my first Norton- and I'd appreciate some advice as I decide the direction this project will take.
I've got a 1967 N15cs motor/transmission that I've had for a long time-its from a bike that belonged to my younger brother who's (the bikes') rolling chassis was stolen while the motor was at a shop for re-build (he gave it to me for Christmas some 20 years ago).
I got a rolling chassis that's from a '67 Matchless G15 Mark II from Ed at Morrie's' Place last year (same Matchless frame as an N15). Since the original bike for this motor was an N15cs I'd like to build it as an N15cs rather than a G15, but I'm not sure about the things I'll need to look out for. This is especially true because there are no illustrations for the parts books for these bikes (a first for me-what a pain!)
Comparing part numbers I can get a feel for the differences, but any input from people who know these bikes would be welcome. For instance, I know the front wheel dia. is different (while the hubs seem to be the same), which doesn't bother me since both rims are shot, but is the offset different between the 2 models? Is the change to the longer stanchions a simple switch, and do I need to change the damper rods to a longer type to match the longer stanchions? The parts numbers seem to be the same for both.
I also see that the crown and column assemblies have different part numbers, but can anyone tell me what the difference between them is?
I'll be taking my time on this build especially since sourcing the cycle parts will be a lengthy process, but if those who have faced the challenge of working on one of these hybrid "red-headed step-children" of the Norton/Matchless world can suggest what to look for/avoid I'd really appreciate it.

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Re: New N15 project, new to Norton [Re: ron herman] #793778 12/24/19 4:24 am
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Rohan Online Content
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I don't know those finer details at all, and I suspect you'll be an expert by the time you have finished !!
We'll be watching with much curiousity, this subject (of the differences) has been bashed about quite a bit,
and its still a work in progress.

Found this pic off the interweb thingy, obviously more road based than the compy models.

Have fun, keep us posted !

P.S. Since the final outcome will be as much Matchless as Norton, you may get more input on the Matchy forum.
Several folks have lotsa these, and may know the nitty gritty of the stuff you need to know.
The Jampot forum also has lots of posts on this stuff, but the old pics are disappearing, so not as helpful as it once was.

Moderated by  Dave Comeau 

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