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FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06
51
52
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4
Oil pump - Reassembly
The pump rotors should be coupled on the same side, see
references 2 and 3.
Replace the O-ring 1.
Tighten the fastening screws to the crankcase at 25 Nm and those
of the plate at 10 Nm.
 See page 69 for technical details.
Oil pump - disassembly
The FOCS oil pump is supplied as an assembly. Lombardini
therefore recommends that the oil pump be handled as an assembly
from a service standpoint
Lombardini does not recommend that the oil pump be disassembled,
then reassembled for purposes of installation on the engine except
during emergency situations.
Rotate the crankshaft until the crankshaft timing pulley keyway is
vertical as shown. Remove the oil pump assembly retaining bolts.
When the crankshaft timing pulley keyway is vertical, the oil pump
drive keyway (A) will be at 3:00 o’clock allowing removal of the oil
pump assembly via relief (B).
Rocker arm cover
The engine control components are all on the cylinder head.
The cover contains part of the lubrication duct of the camshaft and
of the rocker arms, as well as part of the engine vent system.
Components:
1 Oil preassure switch
2 Camshaft lubrification port
3 Rocker arm lubrification port
4 Oil exhaust hose from sump vent system
5 Air valve with oil decanting wire gauze
Note: During remounting be careful with oil exhaust hose 4 that
needs to be properly inserted into its housing on the cylinder
head.
Disassembly / Reassembly
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