Details
| Diagram | Fig. 2 — Engine: Cylinder, Cylinder Head and Fittings · ref 14 |
| Subsystem | engine top |
| Listed in parts books | 1971–1973 |
Norton Valve Collar
A valve collar for the cylinder head valve gear assembly.
PN · NMT186
NMT186 is a valve collar that shows up in the engine top-end catalog entries covering cylinder, cylinder head, and valve gear work. A valve collar sits with the valve spring assembly at the top of the valve stem, part of what keeps the spring retained and the valve seated correctly as the engine runs.
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