| Also known as | E9747 |
| Diagram | Fig. 2 — CRANKCASE · ref 7 |
| Subsystem | engine bottom |
| Listed in parts books | 1969 |
CRANKCASE TIMING SIDE
Timing-side crankcase half for the engine bottom end, listed under the CRANKCASE figure, 1969 catalog appearance.
70-9747 is the timing-side crankcase half, one of the two main castings that make up the bottom end of the engine. This is the casting on the timing side, the side that carries the timing gears and the oil pump drive, and it mates up with the drive-side case to form the complete crankcase assembly that holds the crankshaft and camshafts.
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The catalog lists this under the CRANKCASE figure with the older E9747 number as an alias, which is just the pre-1969 letter-prefix form of the same part carried forward into the numeric system. Our record ties it to 1969 appearances only, so if you're working on something outside that year, check your parts book or give us a call before you order.
A crankcase casting is not something you swap on a whim — it's line-bored and fitted to its mate as a matched pair on most of these engines, and it's machined for specific bearing and bushing sizes. If you're replacing one half you'll want to think hard about whether the other half and the internals need attention too. Confirm fitment against your specific engine before buying.
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