DS 19 OPERATION No. DS 111-4 : Work on the oil circulation. Op. DS 111-4 66
PARTICULAR POINTS
Checking the oil pressure (on the car).
1 Start the engine and leave it running in order to bring the oil temperature to 600 C.
2 Fit a pressure gauge 0 to 150 p.s.i. (0 to 10 kg/cm2) in place of the oil feed pipe to the cylinder head.
3 The pressure should read between 54 and 58.5 p.s.i. (3.8 and 4.1 kg/cm 2 ) with the engine running at 4,000 r.p.m.
Replacement of an oil pump.
Removal.
Remove the engine-gearbox assembly and leave it suspended from a pulley block.
Refitting.
10-11 Rotate the crankshaft to top dead centre of the first cylinder and fit the pump, the drive dog for the distributor is parallel to the centre-line
of the engine, the small side towards the engine after fitting.
Tightening torsions:
Pump fixing screws 11ft/lb (1.5 m.kg) and the locknuts 22 ft/lb (3 m.kg).
Pipe unions 43 ft/lb (6 m.kg) and the locknuts 29 ft/lb (4 m.kg).
12 Fitting the sump: replace the bearing cap cork joints, smear the bearing surface of the crankcase with very thin Hermetic. Do not fit the joint
between the sump and the crankcase.
14 Fill the engine with oil: 7 pints (4 litres) of S.A.E. 20 oil.
TOOLS
CHECKING THE OIL PRESSURE (on the car)
1 Start the engine and let it run in order to bring the oil temperature to 60°C approximately. Stop the engine.
2 Remove the cylinder head lubrication screw. Connect the pressure gauge feed pipe using the union MR-3705
(see Pl. 16, fig. 6).
Use a pressure gauge graduated from 0 to 150 p.s.i. (0 to 10 kg/cm 2 ) 12-17 mm box spanner
Union MR-3705
Pressure gauge
0 to 150 p.s.i.
0 to 10 kg/cm
2
)
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