Norton Commando Cam Bushing Information
Download the complete PDF version using the green download button at the top right of this page for detailed Norton Commando camshaft bushing comparison and installation information.
This useful Old Britts technical article compares the six different Andover Norton camshaft bushings used across Atlas and Norton Commando engines and explains their correct applications, compatibility and installation requirements. :contentReference[oaicite:0]{index=0}
The guide includes detailed information covering early tachometer drive bushings, 750 and 850 cam bushings, MK3 camshaft bushings, thrust washers and scrolled versus non-scrolled camshaft compatibility.
Important workshop notes are also included regarding oil scrolling, camshaft end play, thrust washer selection and compatibility differences between pre-Mk3 and Mk3 crankcases.
Contents Include
- 06-7538 and 06-7539 early cam bushing information
- 06-2600 1972/73 750 cam bushing details
- 06-3020 850 right-hand bushing information
- 06-5425 and 06-5428 Mk3 bushing applications
- Camshaft thrust washer comparisons
- Scrolled and non-scrolled camshaft identification
- Camshaft oil scrolling explanations
- MK3 and pre-MK3 compatibility notes
- Camshaft end play and clearance information
- Andover Norton part number references
Several comparison photographs are included throughout the guide showing the different bushings, thrust washers and camshaft journal types used across Norton twin engines.
Covered Norton Models
- Norton Atlas
- Norton Commando 750
- Norton Commando 850
- Norton Commando Mk3
A valuable technical reference for Norton engine builders, restorers and mechanics servicing classic Norton camshaft assemblies.
