| Also known as | E4747 |
| Diagram | Fig. 6 — TIMING COVER, CONTACT BREAKER AND COILS · ref 23 |
| Subsystem | engine bottom |
| Listed in parts books | 1963–1968, 1970–1971 |
Pillar bolt
A pillar bolt that secures the contact breaker points plate inside the timing cover.
The 70-4747 pillar bolt is a small fastener that mounts the contact breaker points plate inside the timing cover. It shows up across the catalog under the figure titles for the timing cover, contact breaker, and ignition coil assemblies, so its job is holding the points baseplate in position so the gap stays set correctly. The legacy alias E4747 is the same physical part under the earlier numbering.
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This is a piece that's easy to lose track of when the timing cover comes off for points service, and it's worth having a spare or two on hand rather than reusing a stripped or buggered one. The catalog spans a run of years across multiple appearances, which tells you this bolt stuck around in the parts books for a good while without a major redesign.
If you're chasing a rattly or misbehaving points plate, check these bolts before you blame the points themselves — a loose pillar bolt lets the plate shift and throws off your timing. Confirm which bolts your specific bike calls for before ordering, since the figure titles show this part crossing several related assemblies.
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