British Wrenches for Norton Commandos

Size

Open

Box

Socket

Fits

3/16 W - 1/4 BS

YES

YES

OPT.

- Auto advance retaining bolt (threading into camshaft)

- Exhaust valve cover nuts

- Valve adjuster lock nuts

- Later versions of under-the -exhaust-port head nuts

- The two smaller cylinder base nuts

- Gearbox/primary chain adjuster lock nuts

1/4 W - 5/16 BS

YES

NO

YES

- Fuel line banjo bolt (to float bowl)

- Oil line junction block bolt (timing side, oil lines from tank)

- Most head bolts and nuts

- Most cylinder base nuts

- Gearbox inner cover nuts

5/16 W - 3/8 BS

YES

YES

OPT.

- Intake valve cover nut

- Top end oil line banjo bolts

- Fuel line to fuel tap nuts

- Speedo and tach cable nuts

3/8 W - 7/16 BS

YES

NO

NO

- Fuel tap lock nuts (against tank)

7/16 W - 1/2 BS

NO

OPT.

YES

- Clutch retaining nut and adjuster lock nut

- Top gearbox fixing (clamp) nut

1/2 W - 9/16 BS

NO

N0

YES

- Crankshaft nuts, both timing and drive sides