| Diagram | Fig. 4 — Engine: Contact Breaker, Timing Cover, Oil Pump, Oil Pressure Relief Valve · ref 11 |
| Subsystem | engine bottom |
| Listed in parts books | 1975 |
Norton Washer, Crankcase Stud
A washer used on a crankcase stud in the lower engine assembly.
This is a washer that fits over a crankcase stud, used to seat down against the case or a nut as the stud is drawn up tight. The catalog lists it under the crankcase, timing cover, and oil pump area of the engine, so it's part of the hardware holding the lower end together.
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The part number here carries a Norton-style prefix, and the catalog description doesn't name a Triumph model anywhere, so treat this as a Norton engine fastener rather than a Triumph part. Our records show it turning up across a few different figure groups on the crankcase and timing side of the motor.
It's a small, simple piece of hardware. If you're rebuilding a bottom end and need to know exact size or material, give the shop a call before you order so we can confirm it matches what's on your engine.
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