| Diagram | Fig. 3 — Engine: Contact Breaker, Timing Cover, Oil Pump, Oil Pressure Relief Valve · ref 12 |
| Subsystem | engine bottom |
| Listed in parts books | 1975 |
Norton Bolt, Contact Breaker Cam
The bolt that holds the contact breaker cam onto the auto-advance unit in the timing chest.
This is the bolt that secures the contact breaker cam to the auto-advance unit on the timing side of the engine. The catalog entry ties it to the contact breaker and timing cover area, right where the ignition timing components live inside the timing chest.
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It's a small fastener but an important one - the contact breaker cam has to stay seated correctly on the advance unit for the ignition timing to stay consistent. If this bolt works loose or goes missing, the cam can shift and throw the timing off.
Our catalog record for this part is limited to a single listing tied to the 1975 model year. If you're not sure this is the exact bolt your engine needs, give the shop a call and we'll confirm fitment before you order.
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