| Diagram | Fig. 3 — CYLINDER BLOCK – PISTONS – CRANKSHAFT · ref 16 |
| Subsystem | engine bottom |
| Listed in parts books | 1973 |
MAIN BEARING SET (4) 3CYL .010 USA
Main bearing set of four, .010 undersize, for the triple-cylinder engine, USA-market listing.
70-9027 is a main bearing set for the triple-cylinder engine, machined to .010 undersize and covering the full set of four main bearings. This is a USA-market listing, so if you're working from a UK-issue parts book you may see it cross to a different number, but it's the same physical set.
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Main bearings carry the crankshaft in the crankcase, so this set is for a rebuild where the crank journals have already been reground and need an undersize bearing to match. Because it's an oversize/undersize fitment part, you want to have your journal measurements in hand before ordering rather than guessing.
We don't have much more on file for this one beyond what's in the description. If you're not certain .010 is the right undersize for your crank, call the shop and we'll help you confirm before you order.
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