961 Norton – Crank Case Splitting Manual
Download the complete PDF version using the green download button at the top right of this page for a detailed Norton 961 crank case splitting guide created by Richard Coote. This illustrated workshop manual shows how the crank case can be separated while the engine remains in the motorcycle frame, making it a valuable reference for owners and mechanics carrying out deeper 961 engine service work without fully removing the engine assembly.
The guide begins by noting that the transmission should be removed first, then identifies the eleven crank case bolts that must be taken out before the case can be separated. Clear photographs show the bolt groups, their locations, the use of protective rags around the pistons and connecting rods, and the two recommended prying areas used to ease the case apart carefully without damaging the aluminium surfaces.
Further pages document gasket removal, separation of the case half from the engine, and detailed views of the exposed crank case, shafts, bearings and internal case casting once the assembly is apart. The final image pages provide useful photographic reference of the removed case section from multiple angles, which helps readers understand the structure of the Norton 961 crank case and the areas involved during this level of engine work.
Contents Include
- Norton 961 crank case splitting in the frame
- Transmission removal reference before case separation
- Eleven crank case bolt locations
- Bolt grouping and outside versus inside case identification
- Protecting pistons and connecting rods during work
- Recommended prying points for separating the case
- Electrical tape protection note for pry bar use
- Gasket cutting and removal guidance
- Case half removal photographs
- Exposed crank case, bearing and shaft reference images
- Multiple views of the separated 961 crank case section
