Norton Service Release Database N37

SERVICE RELEASE N37

NATURE OF RELEASE: Effect of Isolastic engine mountings during servicing MODELS AFFECTED: 1971 Commando (all models) DISTRIBUTION: Worldwide (for general distribution) EXPLANATION: The patented engine mounting system allows for a certain amount of clearance between the engine/gearbox/swinging arm assembly and the main frame. For 1971 the centre stand is mounted directly onto the engine plates with the effect that the front wheel and the engine unit (through the centre stand) are in contact with the'ground at the same time during servicing. This can result in some difficulty with accurate shimming of the mountings.   ACTION: During servicing operations such as shimming, it is recommended that the complete motorcycle is supported by a stand or stout box under the frame or footrests allowing the engine unit to be self-suspending and free from ground interference. Febuary 1971 Norton Villiers Canada Limited