CITROËN ID 19 Repair Manual page 69

1 ID19
26
27
28
29
30
31
32
33
34
OPERATION No. ID 112-4
: work on the cylinder head
REPLACEMENT OF AN INLET VALVE SEALING RING
Removal (see Pl. 1).
Remove the cylinder head cover (see paragraph 15 to 17, this operation).
Unscrew the inlet rocker assembly fixing screws. Lift the rocker assembly and remove the rocker push-rod of the
valve in question. Put the rocker assembly back in position and retighten the fixing screws. When tightening,
make sure that the spherical ends of the adjpsting screws engage in the sockets .on the push-rods . . . . . . . . . . . .
Release the rocker at the side, place the collar MR-4244 in position (see Pl. 17, fig. 4).
With the piston of the valve in question at T. D. C. compress the valve springs (spring compressor 1614-T, see P1.5).
Remove the split totters, the upper spring housing cup, the springs and the sealing rings (30) (see Pl. 3, figs. 2 and 3).
Assembly (see Pl. 3).
Make sure that the spring thrust washers (31) and (32) are in position. Place the sealing ring (30), the springs and
the upper spring housing cups in position.
Place the split totters in position (collar MR-4244-T, spring compressor 1614-T, see Pl. 17, fig. 4). . . . . . . . . . . . .
Remove the cylinder head fixing screws (43) right-hand side, and the inlet rocker assembly and cylinder head fixing
screws (3).
Raise the inlet rocker assembly and replace the rocker push-rod which was removed in accordance with paragraph 29.
Insert the cylinder head fixing screws and tighten (torsion spanner 2471-T, see Pl. 7, fig. 2).
1st tightening to 21. 75 ft.lbs (3 m. kg) - 2nd tightening to 43.5 ft.lbs (6 m. kg).
Never in any circumstances exceed a torque of 43.5 ft. lbs (6 m. kg).
Adhere to the correct order of tightening (see Pl. 7, fig. 1). During the tightening operation, make sure that the
sockets on the rocker arm push-rods are properly engaged on the spherical ends of the rocker arm adjusting
screws. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NOTE: It is necessary to retighten the cylinder head screws after the car has run 300 miles (500 km) to I200 miles
(2000
km). (See Op. ID 112-1,
para 18 of Note).
Check the valve rocker clearance (0.008" (0.20 mm) for the inlet valve and 0.010" (0. 25 mm) for the exhaust valve).
Make any necessary adjustments (see Op. ID 112-O).
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TOOLS
14 mm box spanner
Collar MR-4244
Spring compressor 1614-T
Collar MR-4244
Spring compressor 1614-T
Torsion spanner 2471-T
14 mm socket