9-7-2026

Which Way Does the Connecting Rod Go
	First determine if your rod is off set or symmetrical. Offset rods are usually made that way to clear a counterweight on the crankshaft. So this is easy to figure out which way it goes.
	Symmetrical rods, like this example, must be examined carefully to determine if the lower bushing is countersunk.
	On this example you can see a slight countersink on the bronze bushing. This side of the rod will go toward the throw or the cheek of the crankshaft. The countersink is there to clear the small radius left when the crankpin is precision ground. I have seen some rod that are countersunk on both sides. In this case if the oil holes are symmetrical the rod may be placed either direction. If the oil holes are not symmetrical I usually suggest that the oil hole should go in the direction to pick up oil on the upward stroke. Although some people argue to the contrary.

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