Dismantling & Inspecting The Norton Commando Gearbox
Download the complete PDF version using the green download button at the top right of this page for detailed Norton Commando gearbox dismantling, inspection and rebuilding preparation procedures.
This detailed Old Britts workshop guide by Fred Eaton walks through the complete dismantling and inspection process for the Norton Commando gearbox including gear removal, bearing inspection, layshaft checks, kickstart shaft inspection and gearbox shell preparation.
The guide contains extensive step-by-step workshop photography together with detailed explanations covering stubborn fastener removal, gearbox holding methods, bearing extraction procedures and inspection of worn gears and internal transmission components.
Special attention is given to common Commando gearbox problem areas including layshaft bearing wear, loose gearbox bearings, worn kickstart pawls, damaged gear dogs and inspection of shafts, bushes and selector components.
Contents Include
- Gearbox removal and secure bench mounting methods
- Mainshaft and countershaft nut removal procedures
- Outer cover and inner case dismantling
- Kickstart spring and kickstart shaft removal
- Selector fork and cam plate removal
- Mainshaft and layshaft inspection procedures
- Bearing extraction and gearbox shell heating techniques
- Gear wear and damaged dog inspection
- Kickstart pawl and spline wear diagnosis
- Cleaning, preparation and gearbox case inspection
The guide also explains the use of homemade gearbox tools, lockring sockets, chain holding methods and workshop setup techniques helpful when rebuilding or servicing Norton Commando transmissions.
Covered Norton Models
- Norton Commando 750
- Norton Commando 850
- Norton Commando Roadster
- Norton Commando Interstate
- Norton Commando Hi-Rider
- Norton Commando Fastback
- Norton Commando MK3
