Norton 650cc Dominator. Manxman Piston STD 68mm 1961-1970 Pairwith Piston Rings, Circlips and Gudgeon Pin DM: 11/16" = 17,46mmCompression Hight: ~40,8mmPiston Clearence 0.12mm or 45thouPlease look at all picturesJP Piston Made in Australia
The Functional Working of the Petrol Engine by L.Mantell
Printed 1919, fourth edition
Lovely condition very informative
A Manual of Motor Mechanics and Efiiciency Tuning
Pages: 233