11A
-
23
TOP AND FRONT OF ENGINE
Timing belt
L90, and K7J, and 710
11A
Fit the auxiliary timing belt tensioner tool (Mot. 1135-
01)(12).
Tighten the timing belt, by pivoting the tension wheel
with tool (Mot. 1135-01) anti-clockwise.
Adjust the belt tension with tool (Mot. 1505) or (Mot.
1715) to the value 165 Hz
±±±±
10, (see Technical Note
3786A, Engine and peripherals, 10A, Belt tension
tester: Use).
Tighten to torque the tension wheel mounting nut
(5 daNm).
Rotate the crankshaft clockwise through two revolu-
tions.
Set the engine at Top Dead Centre using tool (Mot.
1489).
Remove the TDC setting rod (Mot. 1489).
Refit the timing belt pretensioning torque tool (Mot.
1501) on the camshaft sprocket
Apply pretensioning torque to the timing belt section,
with a low torque wrench adjusted to torque 1
daNm
Remove the tool (Mot. 1501).
Check using tool (Mot. 1505) or (Mot. 1715), that the
timing belt tension is 165 Hz
±±±±
10.
If the tension value is outside tolerances, adjust it by
starting the tensioning process from the beginning.
Angle tighten to torque the crankshaft pulley
mounting bolt (3 daNm + 80˚
±±±±
5), by blocking the
flywheel with a screwdriver.
Coat the upper timing cover mounting bolts with
LOCTITE FRENETANCH.
Torque tighten:
- the M10 mounting bolts of the upper timing co-
ver (4.4 daNm)(13),
- the M8 mounting bolts of the upper timing cover
(2.2 daNm)(14),
- the lower timing cover mounting bolts (0.8
daNm),
- the suspended engine mounting cover moun-
ting bolts (6.2 daNm).
Refit the accessories belt (see 11A, Top and front
of engine, accessories belt).
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