Replacement Of A Timing Chain Or Timing Gears - CITROËN ID 19 Repair Manual

ID
19 OPERATION No. ID 120-l
: Work on timing gear
Op. ID 120-l
71
REPLACEMENT OF A TIMING CHAIN OR TIMING GEARS
To remove :
Remove the engine and gearbox assembly (see Op. ID 100-1, paragraphs 1 to 26).
Remove thetiming case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keep the crankshaft and camshaft pinions in position with the setting gauge 1680-T (see Pl. 15, fig. 2).
Turn back the locking tabs and unscrew the pi&on fixing nuts (spanner 1731-T for camshaft nut, see Pl. 15, fig. 3
and spanner 1667-T for crankshaft nut, see Pl. 15, fig. 1).
Withdraw the setting gauge 1680-T.
Withdraw the timing gear and chain assembly from the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
To refit:
Place the crankshaft and camshaft pinions on the bench.
Align the reference marks on the two pinions.
A straight edge passing through the centre lines of the two pinions
must pass through the reference mark (punch mark on a tooth) of the camshaft pinion and through the reference
mark (punch mark between two teeth) of the crankshaft pinion.
Setting gauge 1680-T may also be used
(see Pl. 15, fig. 2).
This tool is marked with a centre line enabling the reference marks to be aligned.
Then fit the chain on the two pinions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
To fit the timingchain and gear assembly :
a)
Move the two end pistons to the T. D. C.
b)
Without displacing the pinions put the chain and gear assembly into position on the engine.
Rotate the camshaft by means of its pinion so that keyways on the pinions and shafts correspond.
cl
Fit the chain and pinion assembly making sure that the keys-are properly located on the camshaft and on the
crankshaft..
Wedge the crankshaft by means of the setting gauge 1680-T (see PI. 15, fig. 2).
Tighten the camshaft nut to 110 ft.lbs (15 m. kg)
( p s anner 1731-T, see Pl. 15, fig. 3) (insert tabwasher).
Tighten the crankshaft nut to 145 ft.lbs (20 m. kg) (spanner 1667-T, see Pl. 15, fig. 1) (insert a tabwasher).
Withdraw the setting gauge 1680-T and turn down the tabs on the nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fit the timing case, inserting a gasket.
Tighten the fixing screws to 11 ft. lbs (1.5 m. kg)
and insert a brass washer,
under each of the three screws projecting inside the timing case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fit the engine and gearbox assembly on the vehicle (see Op. ID 100-1, paragraphs 28 to 57).
TOOLS
12 mm box spanner
Setting gauge 1680-T
Spanner 1731-T
Spanner 1667-T
Setting gauge 1680-T
Setting gauge 1680-T
Spanner 1731-T
Spanner 1667-T
12 mm box spanner