| Diagram | Fig. 4 — Engine: Contact Breaker, Timing Cover, Oil Pump, Oil Pressure Relief Valve · ref 39 |
| Subsystem | engine bottom |
| Listed in parts books | 1975 |
Norton Plug
A plug listed with the timing cover and oil pump figures on Norton engines, possibly a cam chain inspection plug.
This is a plug, listed in the Norton parts records under the engine bottom end area, in the same figure group as the contact breaker, timing cover, oil pump, and oil pressure relief valve. Catalog information for this one is thin, and a title turned up in other records describing it as an inspection plug for the cam chain.
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Given where it sits in the figure listing, this plug likely covers an inspection or access point on the timing side of the engine, but our own catalog entry doesn't spell out its exact function or dimensions.
If you're chasing this part number down for a rebuild, give us a call and we can confirm what it fits before you order.
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