Wednesday 4 October 2017

 
It is not obvious but the oil drain on a Norton single is not a straight drilling...due to the fact the head and the crankcase do not align due to the fact they used the same crankcase for the 350 and 500.

 
 
I acquired a very old ES2 barrel and am now boring it out to 85 mm...removed top fin and the rope under the fin is to reduce ringing when on the lathe. The cloth under it is to catch it when it comes off the chuck -at slow revs!

 
Plan 'B' is to fit a Vincent barrel with a spacer on the sleeve .