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Norton Manx model engine

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Harrie Roos07/08/2009 18:14:56
7 forum posts
The cover of MEW 144 with a very nice pic of the Manx engine got my attention, because I have been searching for the drawings and castings so I can construct one myself.
Maybe the maker of this Manx model , B. Conner, can hopefully help me to get the relevant information.
JasonB07/08/2009 19:09:28
16907 forum posts
1817 photos
1 articles
The builder has done several classic motorcycle engines, they are all machined from solid without the use of CNC. I like his Matchless G45 the best.
I'm not sure if he uses works drawings or has access to the original engines to measure. He usually has at least one engine running at the Guildford rallys.
JimmieS07/08/2009 20:38:53
255 forum posts
1 photos
In the 10 November 1955 issue of the Model Engineer (sorry but I do not know the issue number) there is the first of a series of articles on modelling a Manx Norton by H W Hooper who 'gives detailed instructions for making a scale model of one of the world's most famous racing motorcycles'  in 1/6th scale. This engine/gearbox are non working parts.

Harrie Roos08/08/2009 16:23:26
7 forum posts
I would like to build a 1/5 scale 100cc working model, so I hope mister B. Conner will contact me on the forum to give me more info.
JasonB08/08/2009 17:52:16
16907 forum posts
1817 photos
1 articles
You will need to alter one of those figures as the capacity decreases to the cube root of the scale. Not sure of the exact spec of the engine but
80mm bore x 100mm stroke gives approx 500cc
1/5th scale = 16mm bore x 20mm stroke gives approx 4cc
3/5th scale = 48mm bore x 60mm stroke gives approx 108cc
I think that most of his models are half full size which would give 62..8cc

Edited By JasonB on 08/08/2009 18:20:40

Edited By JasonB on 08/08/2009 18:23:24

Harrie Roos08/08/2009 19:26:09
7 forum posts
Yes, you`re right, I would like to build a 90 up to 100cc model with a shortstroke crank.
Thanks for eye opener.
Johan van Zanten11/08/2009 18:57:00
52 forum posts
98 photos
There is an interesting book for sale: "  Boxer-, reihen- und V- motoren als modell "  from Hubert W.Schillings   Isbn 3-88180-133-2. 
 On page 12 You wil find some (breef)  informatin and drawings of a Norton Manx model., 24 mm  bore and 22 mm stroke. There is lots of information on I-C engine building in German language.
 I whish you succes with your engine.
Regards, Johan van Zanten.
The Netherlands. 

Edited By Johan van Zanten on 11/08/2009 19:00:09

Harrie Roos11/08/2009 20:57:57
7 forum posts
Goede Avond, G`Day
Thanks for the info, I will have a look at the lokal library, only my german is not so good.
The Netherlands
Harrie Roos12/10/2009 18:15:48
7 forum posts
Well, Johan, I`ve bought the book you recommended from Herr Schillings, like you said, It has a lot of info.
I am learning German now.
The way Hubert puts it, Internal keep it easy, Externalmake it look good.
Well, back to the drawingboard (CAD)
Many thanks and I keep you people informed.
Harrie Roos

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