| Diagram | Fig. 1 — CYLINDER AND CRANKSHAFT · ref 70 |
| Subsystem | engine bottom |
| Listed in parts books | 1969 |
BSA Top collar, valve spring
A top collar for a valve spring, part of the valve gear on the cylinder top end.
This is a top collar for a valve spring, listed under part number 40-1019. It's one of the small pieces that make up the valve gear on the top end of the engine, sitting where the valve spring seats against the cylinder head or valve assembly.
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The catalog record ties this to a 1969 listing under a CYLINDER AND CRANKSHAFT figure, but that's about as far as our information goes. We don't have more detail on this one beyond the description and figure heading.
If you're trying to match this against a specific engine, give the shop a call and we'll work through fitment with you before you order.
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.
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