The Genuine Buddy 170 crankcase diagram shows the complete engine crankcase assembly, including the left and right crankcase halves, crankcase gasket, crankshaft bearing seats, main bearings, oil seals, oil drain plug, internal bushings, studs, alignment dowels, and integrated lubrication passages. This diagram is used to identify OEM replacement parts for engine bottom-end service, crankcase sealing repair, and full engine rebuild work on Buddy 170 models.
The crankcase is the structural foundation of the engine, housing and supporting all major internal rotating components including the crankshaft, transmission interfaces, and lubrication system. It also maintains oil containment and proper internal pressure while ensuring precise alignment of all moving parts. Common repairs include replacing worn or leaking crankcase seals that cause oil loss, servicing damaged bearing seats that lead to crankshaft play or vibration, replacing stripped drain plugs that prevent proper oil service, and repairing cracked or warped crankcase halves that compromise engine integrity and performance.