| Diagram | Fig. 2 — CYLINDER AND CRANKSHAFT · ref 31 |
| Subsystem | engine bottom |
| Listed in parts books | 1969–1970 |
BSA Engine shaft (left-hand)
A left-hand engine shaft from the crankshaft assembly, cataloged in the cylinder and crankshaft section for 1969-1970.
This is an engine shaft listed in the catalog as the left-hand piece, part of the crankshaft assembly shown in the cylinder and crankshaft section of the parts books. It's an internal engine component that lives down in the bottom end, part of what makes up the crank on these motors.
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Our record on this one is thin. The catalog shows it appearing across 1969 and 1970 listings, but we don't have enough detail here to tell you exactly which model or engine size it was fitted to. If you're trying to match this against what's in your motor, bring in the old part or give us a call so we can confirm before you order.
Given how little the books tell us beyond the figure and the left-hand designation, treat this as a starting point for identification rather than a confirmed match — we don't want to send you the wrong shaft.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
Sorry if we got something wrong here. If you think this information isn't correct, .