DS 19 OPERATION No. DS 112-1 : Replacement of a cylinder head or a cylinder head gasket.. Op. DS 112-1 72
TOOLS
24 To fit the carburettor (see Op. DS 142-1).
Refit the accelerated idling pipe to the hot spot cover plate (spring washers) . . . . . . . . . . . . . . . . . . . . . . 7 mm box spanner
25 Connect the water hose to the inlet manifold hot spot, to the water pump and to the heater return pipe.
Fit the hose clips.
26 Connect the low pressure pump return pipe.
Fit the clips (rubber bush).
27 Connect the heater outlet pipe to the water pump cover.
28 Fit the fan. Start the screws by hand, then tighten to 6.5 to 7.25 ft/lbs (0.9 to 1 m.kg). Do not exceed this
tightening torsion. Fit the radiator tie-rod (plain and spring washers).
Connect the feed pipe to the reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12-14 mm box spanners
29 Connect the exhaust pipe to the manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 mm box spanner
30 Fit the sparking plugs (spanner 1603-T, see Pl. 16, fig. 7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spanner 1603-T
31 Fit the water return pipe. Fit the clips.
32 Adjust the rockers (see Op. DS 112-0).
33 Refit the steel cups and the sealing joints on the sparking plug tubes. Refit the cylinder head cover. If the
gasket is renewed, stick it with Hermetic on the cylinder head cover only. Make sure that the gasket and
the bearing face of the cylinder head are properly clean.
Tighten the nuts (plain and leather washers). Fit the bakelite and rubber caps on the sparking plug tubes.
Connect the sparking plug leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 mm box spanner
34 Refit the air cleaner. Tighten the clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 – 1 mm box spanners
35 Refill the radiator with water. During this operation, unscrew the bleed screw and open the heater control vane.
36 Start the engine. Unscrew the pressure control valve bleed screw, leave the engine running for a few minutes
and retighten the bleed screw. Check the union for leakage.
Adjust the slow running (see Op. 142-0).