CITROËN ID 19 Repair Manual page 197

ID 19 OPERATION No. ID 39 l-3
: Overhauling the suspension pump Op. ID 391-3
191
9
10
11
12
13
14
15
16
NOTE - When exchanging the return spring (11) the above operations must be carried out except paragraph 5
(determination of the thickness of the shim).
In this case use the shim found when dismantling.
The ring seals and the valve must be renewed everytime
of re-assembly.
Check very carefully that the seating of the cylinder in the body has not been damaged by the end of the coils
of spring.
NOTE - Before running, in order to prime the pump,
it is absolutely necessary to refill with fluid through the
inlet pipe.
I
OVERHAULING A SUSPENSION PUMP
(Curs produced since. Februay 1960).
Dismantling (see Pl. 84A).
Remove the roller and tappet assembly.
Hold the pump in a vice and tighten moderately. Remove cover (l), release the valve spring (2), the valve (3),
the cover seal (4), the shim or shims (5) for setting the cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove the pump from the vice. Insert a brass rod in place of the tappet and hold the pump vertically; push
the body of the pump downwards, and hold the parts at the top to prevent them from scattering when the
sleeve is released.
Withdraw the piston (8) from the sleeve. Remove the seal (10) from the groove in the sleeve. Remove the
spring (1 I), the circlip (12) and the spring cap (13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove the intermediate piston (14) from the pump body, by means of a brass rod.
If the intermediate piston must be replaced,
the pump body will also need replacing . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clean the parts in alcohol. Dry by compressed air. Ensure that holes (a) and (b) are not blocked.
Assembly (see Pl. 84A).
If the valve seat is slightly scratched, rub it against a No. 600 abrasive paper moistened in alcohol; the paper
should be rested on a surface plate.
(It is recommended that the seat (6) should be replaced in all cases).
Clean in alcohol and dry by means of a jet of compressed air.
The valve must be replaced if it is scored.
Check the seating of the seal (4)
on the seat and in the pump body, the seating of the seal (7) on the sleeve and
the seating of the sleeve seal (10) in the pump body. There must be no scratches.
If the spring (11) is found to be broken, it should be removed very carefully to avoid scoring the pump
body.
TOOLS
12 mm box spanner
20 mm dia. brass rod
Length = 100 mm
7 mm dia.. brass rod
Length = 150 mm