•  The crankshaft is a half balance type and made of forged manganese steel.

•  The crankshaft is a five-journal type.

•  Oil passages are provided inside of the crankshaft.

•  The main bearings are made of aluminum alloy. The upper bearings have oil grooves. The lower bearings have no grooves.

•  The thrust direction force is received by the No.4 upper main bearing.

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