When is a Norton not a Norton …


 

SG– … when it is a South Australian Railways copy! 

Many due to Leon for a profusion of photographs – and data – relating to the 557cc SAR engine courting from about 1910 to 1915.  It appears they had been fitted to small railway upkeep vans and fairly just a few of them had been available again within the sixties and seventies.  However now, they’re fairly uncommon.  

Though the crankcase castings incorporate substantial additional mounting lugs, it is vitally clearly a Norton copy. Whether or not Nortons had been paid any type of premium to be used of their fundamental design isn’t identified. The photographs of the cylinder barrels – Norton on the fitting in all instances – reveals the design similarity and the cams/followers look very similar to these employed through the twenties.