haft, where it lubricates all connecting rod and wrist pin bearings. See Figure 2. rtANKSHAFT BEARING HOUSING 1 OIL PRESSUR: [ RELIEF VALVE OIL PRESSUR _ GUAGE n SHIM GASKET(' f OIL PUMP r DRIVE PIN PRESSURE _ ADJUSTING SCREW OIL PUMP OIL PUMP BUSHING SUCTION SPRING -V±t 'PRr; RELI