Manuale Officina LGW 523-627 - lombardini service

4Disassembly / ReassemblyOil pump - disassemblyThe FOCS oil pump is supplied as an assembly. Lombardinitherefore recommends that the oil pump be handled as an assemblyfrom a service standpointLombardini does not recommend that the oil pump be disassembled,then reassembled for purposes of installation on the engine exceptduring emergency situations.Rotate the crankshaft until the crankshaft timing pulley keyway isvertical as shown. Remove the oil pump assembly retaining bolts.When the crankshaft timing pulley keyway is vertical, the oil pumpdrive keyway (A) will be at 3:00 o’clock allowing removal of the oilpump assembly via relief (B).51Oil pump - ReassemblyThe pump rotors should be coupled on the same side, seereferences 2 and 3.Replace the O-ring 1. Tighten the fastening screws to the crankcase at 25 Nm and thoseof the plate at 10 Nm. See page 69 for technical details.52Rocker arm coverThe engine control components are all on the cylinder head.The cover contains part of the lubrication duct of the camshaft andof the rocker arms, as well as part of the engine vent system.Components:1 Oil preassure switch2 Camshaft lubrification port3 Rocker arm lubrification port4 Oil exhaust hose from sump vent system5 Air valve with oil decanting wire gauze53 54Note: During remounting be careful with oil exhaust hose 4 thatneeds to be properly inserted into its housing on the cylinderhead.- 42 - FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06