DS 19 OPERATION No. DS 100-3 : Overhauling an engine 57
TOOLS
i) Smear the assembly faces of the two half shells with Festinol around the fixing screw holes.
Offer up the bearing caps together with their bearings. Put the sump gaskets in position, the end under the front
and rear bearing caps. Smear these areas with Festinaol. Tighten the bearing screws to 72 ft/lbs (10 m.kg) (torsion
spanner 2471-T, see Pl. 7, fig. 2).
There are no lockwashers under the heads of the screws.
Tighten the assembly screws (11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Torsion spanner
2471-T
IMPORTANT NOTE – Do not turn the crankshaft after it has been fitted. Actually, the valves are not under control,
and if one of them is raised, the piston of the corresponding cylinder cannot pass top dead centre without fouling it.
NOTE – Festinol is sold by Societe Ripolin.
36 To adjust the end float of the crankshaft (see Pl. 1) :
a) Fit the bearing thrust ring (9) with the groove engaged on the retaining pin, an adjusting shim (10) 0.05 mm thick,
the thrust washer (12), the crankshaft pinion (temporarily without key), tighten the nut (spanner 1667-T, see
Pl. 15, fig. 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spanner 1667-T
Push the crankshaft towards the bearing, timing side, by means of a lever or wedge placed between a throw of the
crankshaft and the cylinder block.
b) Measure the clearance between the thrust ring (9) and the thrust washer (12) (at “g”).
This clearance should be between 0.03 and 0.09 mm. Select from the shims sold by our Spare Parts Department,
one which will allow the correct clearance to be obtained.
Remove the pinion.
37 To fit the timing gear :
a) Fit the timing chain lubricator (16) with the hole located on the centre line of the crankshaft, tighten to
7.5 ft/lbs (1 m. kg) and the locknut to 10 ft/lbs (1.4 m. kg).
Fit the oil-way plugs together with their joints. Smear the threads with Hermetic . . . . . . . . . . . . . . . . . . . . . . . .
21-23 mm box spanners
b) Place the two pinions for the crankshaft and camshaft on a bench.
Align the two reference marks : a straight edge passing through the centre line of the two pinions should pass
through the mark (centre punch on one tooth) on the camshaft pinion and in between the teeth marked by a centre
punch (see Pl. 15, fig. 2). This tool has a centre line marked on it to enable the reference marks to be aligned . . . Setting gauge 1680-T
c) Fit the chain and pinion assembly. Without displacing the pinions, offer up the chain and pinion assembly : turn
the camshaft by means of the pinion so as to bring the keyways in the pinions and shafts opposite one another.
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