| Diagram | Fig. 7 — INNER TIMING COVER, GEARCHANGE MECHANISM · ref 42 |
| Subsystem | engine bottom |
| Listed in parts books | 1969–1970 |
BSA Retainer, gearchange plunger
Retainer for the gearchange plunger, located in the inner timing cover/gearchange mechanism area of the bottom end.
This is the retainer for the gearchange plunger, part number 57-2630. It shows up in the parts book under the inner timing cover and gearchange mechanism figures, which puts it down in the bottom end where the gearchange quadrant and its spring-loaded plunger live.
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The plunger and retainer work together to hold the gearchange mechanism in its detents as you shift, giving the lever that positive feel between gears. The retainer's job is simply to keep the plunger and its spring located in the housing so they can do their work.
Our catalog record ties this one to appearances spanning 1969 to 1970. If you're working on a different year, check the part against what's actually in your timing cover before ordering.
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