Norton Service Release Database N3/28

SERVICE RELEASE N3/28

NATURE OF RELEASE: Improved Clutch Capacity MODELS AFFECTED: Commando (All Models) DISTRIBUTION: General Distribution (Worldwide) EXPLANATION: A new type of clutch friction plate was introduced on to production models at engine number 212278. The new plate comprises two sintered bronze friction discs bonded to either side of a plain steel plate. Extra clutch capacity is provided by the inclusion of 5 friction plates in place of the original four fibre material type. Additional changes are the incorporation of an additional plain driving plate and an identical but heat treated and hardened clutch centre, together with a new thinner section pressure plate.   ACTION: The new clutch components are fully interchangeable as indicated: NOTE: The new hardened clutch centre 063979 can be used with earlier clutch assemblies, but under no circumstances'should the new sintered faced driven plates be used unless in conjunction with the new 063979 hardened clutch centres (identified by its darker "Heat Treatment" coiouration). November 1972 Norton Villers Canada Limited