| Diagram | Fig. 1 — CYLINDER AND CRANKSHAFT · ref 76 |
| Subsystem | primary |
| Listed in parts books | 1969–1972 |
BSA Dowel, inner timing cover to crankcase
A locating dowel that aligns the inner timing cover to the crankcase, part number 66-3074.
This is a dowel that locates the inner timing cover against the crankcase, part number 66-3074. It's a small fitment part but an important one: dowels like this keep the timing cover indexed square to the crankcase mating face so the cover seats correctly every time it's removed and refitted, rather than relying on the cover bolts alone to hold alignment.
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In the catalog this part turns up across a wide spread of figures - crankcase, gear cluster, clutch, cylinder head, footchange, and both primary and inner timing cover drawings - which tells you it's one of those small parts that gets called out repeatedly wherever the timing side and primary side of the engine come together. That breadth is normal for a dowel; it doesn't mean the part itself does more than the one simple job of alignment.
Given how small and inexpensive parts like this tend to walk off or get lost during a rebuild, it's worth having a spare or two on hand before you pull the timing cover. Our catalog record doesn't tie this specific dowel to an exact model, so give us a call and we'll confirm fitment 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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