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Lubrication circuit

2.10.1 Lubrication circuit diagram


The oil pump is driven by the crankshaft on the timing system side.
On the parts of the systems shown in green on In the parts in green, the oil is in intake, in the parts in red, the oil is under pressure and
in those in yellow the oil is returning towards the oil sump 2 (not under pressure).


Tab 2.21

COLOUR DESCRIPTION
  Oil in intake
  Oil under pressure
  Oil returning to the oil sump


Tab 2.22
POS. DESCRIPTION
1 Oil pump rotors
2 Oil sump
3 Crankshaft
4 Camshaft
5 Turbocharger
6 Rocker arm pin
7 Hydraulic tappets
8 Rocker arm cover
9 Cylinder head
10 Upper crankcase
11 Lower crankcase
12 Oil filter
13 Oil Cooler
14 Housing

Fig 2.16


Fig 2.17

NOTE: Click by side to play the procedure.

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2.10.2 Oil pump
The oil pump rotors are trochoidal (with lobes) and are activated from the crankshaft by means of the key.
The pump body is situated inside the distribution guard.
It is imperative to assemble the rotors with reference A visible by the operator.


Tab 2.23

POS. DESCRIPTION
1 Internal rotor
2 External rotor
3 Oil pump crankcase
4 Pump control key
5 Timing system crankcase
6 Crankshaft

Fig 2.18

2.10.3 Oil filter and Oil Cooler

 

Fig 2.19

NOTE: unscrewing the cartridge holder cover makes the oil in support 7 flow towards the oil sump by means of the drain duct 4.
Tab 2.24
POS. DESCRIPTION
1 Oil arriving from the pump
2 Oil cooling
3 Oil filtering
4 Oil drain duct (oil sump return)
5 Oil returning into the circuit
6 Outgoing fitting from filter
7 Oil filter support
8 Cartridge holder cover
9 Oil filter cartridge
10 Oil Cooler
11 Crankcase
12 Oil directly from the cartridge
13 Coolant
14 Oil drain duct closure gasket
15 Oil filtering chamber closure gasket
16 Cartridge holder cover gasket


Tab 2.25 Cartridge characteristics.
DESCRIPTION VALORE
Filtering surface 2.300 cm2
Degree of filtration 2 µm
Max operating pressure 4.0 Bar
Max flow rate 190 litres/hour
 
Fig 2.20

 

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