| Diagram | Fig. 30 — A70 MODEL — Except for the following, all other items are as A65 Lightning · ref 4 |
| Listed in parts books | 1972 |
BSA Tube — crankshaft sludge trap
Crankshaft sludge trap tube for a BSA twin engine, part number 71-2683.
This is the crankshaft sludge trap tube listed under part number 71-2683, described in the catalog simply as a tube for the crankshaft sludge trap. The sludge trap is the centrifugal debris catcher built into the crankshaft that spins out grit and contamination before oil gets to the rod bearings, and this tube is a component of that assembly.
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Our record for this one is thin — it shows up once, tied to the A70 model figure, which notes that other items on that engine follow the A65 Lightning listing. That points to a BSA twin rather than anything Triumph, but beyond that we don't have more detail on this one.
If you're working on a sludge trap and need this tube, give us a call and we'll confirm fitment against your specific engine 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.
Sorry if we got something wrong here. If you think this information isn't correct, .

