Crank shaft bearing sizes for D6 pony motor. It’s an opposed cylinder twin. I’m looking for journal sizes. Also looking for recommendations for a source for replacement bearings and piston rings. The crank has spun one rod bearing. The good journal measures out at 1.875” and the spun journal is 1.870x1.850/oval. What’s the largest oversized bearing that are available for the rods on these? I’m assuming the standard size is 1.875 since I could not find any oversized marking on the old bearing shells. An .030 cut should clean this crank up as long as I can get .030 bearings. Thanks in advance.
0.030 is the largest undersize Check here...https://www.machinerytrader.com/parts/search?PartNumber=1H2784&SearchType=Start 1.8745 - 1.8750 is the standard rod journal size.