Interesting 600cc sidevalve stationary engine on UK ebay.
Note the fins on the head - crossflow, for fan cooling. ?
Similar M20 or M21 BSA engines are around, but Norton ones must be fairly uncommon. ?
Wonder how many they made ?

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 0757608711

I think it's basically a Big 4 engine with a slighly smaller bore. Big 4 was 82mm that one is 80mm. Big 4 was made from 1932 (or earlier) up to 1954, so I should think there are quite a few still going. It was Nortons sidecar machine of choice.

Ian

I don't think that any production records have survived but the Norton powered Trusty tractors and cultivators were quite well known and reasonable sellers in the late 1940s / early 1950s and there were other makes which used the engines too.

In order to use in a bike, the drive side mainshaft would have to be replaced as well as the head. However, cam gear is as per the 1938 - 47 engine which was also used in the WD Big 4 side car wheel drive outfits and I've heard recently of a rusty Trusty being pulled from a farm hedge to assist in the resurrection of a sidecar outfit.

I see he's updating to 16hp. What did the Trusty Norton produce.
Now if that was in Aust, He would probably consider a 350 ci Chev engine, then run her in the
Mini Tractor Pull, competition.
But seriously, It gives another avenue to Norton pleasure. Don't know if they were sold here.
Would it be.. rope start, or crank. ?
AC.

Dad picked up a Norton Villers air compressor the other day at an old machinery auction and I found the manual online

I think I saw recently that Norton Villiers are still going in Ballarat, I think they were operating as a foundry. Villiers had an outpost there for many a year, I think someone said they were making engines there, not just assembling them from imported bits. There were little Villiers industrial engines about, looked just like the BSA ones. And the Briggs&Stratton and now Honda ones....

Thanks for the replies on the Trusty, looks neat (almost said 'cute').
Thanks for the pic LAB, can't say I've heard of them before.
Another part of Norton history revealed.

In some times/places, a 600cc engine would have been rated as 6 hp, so its possible a 16 horse may be a fair bit bigger. Note that thats 'rated' hp, not developed hp, it would probably give 15 or 16 on the dyno.

P.S. I notice this advert for a Trusty garden Tractor on aussie ebay
http://i.ebayimg.com/00/$(KGrHqIOKk!E27 ... w~~_12.JPG

Obviously they came in different forms. This one is said to have a 5hp JAP engine in it.
This is more the form I would have expected for the Norton one ?

P.S. there is a lot of info out there about garden tractors.
In one place, it mentions the Norton as 14hp, so maybe its not rated hp after all.
16hp doesn't sound much bigger then....

Norton Villiers do exist in Australia. 810 Norman Street Ballarat, and advertise as metal work and foundry. (I googled them) looks like a big place too.

Maybe they haven't heard the news about the parent company?