Shop/Category/Fig. 4 — CRANKCASE - TIMING GEARS - OIL FILTERS/Spring – auto advance unit (Lucas 54417992)
Details
| Diagram | Fig. 4 — CRANKCASE - TIMING GEARS - OIL FILTERS · ref 28 |
| Subsystem | engine bottom |
| Listed in parts books | 1973 |
Spring – auto advance unit (Lucas 54417992)
Auto advance unit spring, Lucas 54417992, for the timing gear/ignition advance mechanism.
PN · 99-1234
This is the auto advance spring listed under the Lucas number 54417992, found in the crankcase and timing gears section of the parts book. Auto advance units use a pair of these springs to control how the mechanism moves the points cam as engine speed rises, working against the flyweights inside the advance unit itself.
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