DS 19 OPERATION No. DS 330-3 Overhauling a gearbox. Op. DS 330-3 203
TOOLS
a) Put the bearing (52) in the housing. Tighten the ring nut (54) to 72 ft/lbs (10 m.kg) (spanner 1771-T, see Pl. 63,
fig. 2). Lock the nut with the pointed screw (53) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spanner 1771-T
12 mm box spanner
b) Put the oil seal (55) in position, (mandrel 1772-T, see Pl. 63, fig. 2). Ease the fit of the joint in the bush and the
housing with petrol, use no other product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mandrel 1772-T
NOTE - During the manipulation of the joint, be careful not to damage the face of the oil seal. One scratch made
even with a finger nail is sufficient to cause leakage.
c) Offer up the housing thus prepared, together with the bracket (2) on the differential shaft. Put it in position,
in a press (use a tube) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tube :
Internal dia. = 30 mm
External dia. = 39 mm
Length = 200 mm
d) Tighten the nut (51) locking the bearing to 72 ft/lbs (10 m.kg) (spanner 1770-T, see Pl. 63, fig. 4) Spanner 1770-T
e) Tighten the screw (50) locking the nut.
Carry out the same operations for the other housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 mm box spanner
28 To prepare the mainshaft (see Pl. 53, fig. 1):
IMPORTANT REMARK (see Pl. 53A, fig. 1) - Since production commenced on DS 19 cars, we have fitted two
types of 3rd and 4th speed pinions (pinion on mainshaft and intermediate train). The two types of assemblies
should be carefully noted. The parts which they comprise form an assembly and should never be mixed.
1st type assembly (cars produced before July 1957) : helix angle of pinions 31˚ 50’.
2nd type assembly (cars produced since July 1957) : helix angle of pinions 33˚ 30’.
Identification of pinions
Type of gearbox 3rd Speed pinion 4th Speed pinion Intermediate train
Cars produced before July
1957 No. D 333-8 No. D 333-17 No. D 333-16
(3rd speed pinion with
31˚ 50’ helix angle) (no mark) (no mark) (no mark)
Cars produced since July
1957 No.D5333-8 No.D5333-17 No. D5333-16
(3rd speed pinion with
33˚ 30’ helix angle) 3 centre punch marks at groove at b number “33”
a or groove at c (washer between rods and pinion) stamped on face d
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