Details
| Also known as | E3998 |
| Diagram | Fig. 1 — CRANKSHAFT AND CONNECTING RODS · ref 2 |
| Subsystem | engine bottom |
| Listed in parts books | 1964–1968 |
Crankshaft
Crankshaft for the unit-construction engine, part number 70-3998 (also E3998).
PN · 70-3998
This is the crankshaft, catalog number 70-3998, also carried under the older E3998 designation. It's the rotating heart of the bottom end, sitting in the crankcase where it takes the reciprocating motion of the connecting rods and turns it into the rotational drive that runs the rest of the engine.
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