Renault LAGUNA 2000 Manual page 31

K4M engine
Procedure for tensioning the timing belt
Refit:
– the timing belt,
– the pulley by tightening the mounting bolt using
Mot. 1368 (to a torque of 4.5 daNm for information
only).
Belt tension
Shift the adjustable tension wheel index (A') by 7 to
8 mm beyond the fixed index (7), using a 6 mm Allen
key (in B).
NOTE: position (A) corresponds to the adjustable
index at rest.
VALUES AND SETTINGS
07-14
Pre-tighten the tension wheel nut to a torque of
0.7 daNm.
Fit the crankshaft accessories pulley by moving the
bolt away from the pulley (2 to 3 mm clearance
between the bolt and the pulley).
NOTE:
– the crankshaft accessories pulley bolt can be reused
if the length under its head does not exceed 49.1 mm
(otherwise replace it),
– do not oil the new bolt. However, bolts must be oiled
if they are being reused.
Tighten the crankshaft pulley bolt to a torque of
2 daNm then angle tighten to 135° ± 15° (crankshaft
resting on the Top Dead Centre pin ).
Remove tool Mot. 1496 for clamping the camshaft and
Mot. 1489 Top Dead Centre pin.
Turn the crankshaft clockwise twice (timing end), and
before the end of the second turn, tighten the pin
Mot. 1489 in the cylinder block and move the
crankshaft slowly and smoothly to rest on the pin.
Remove the Top Dead Centre pin.
Slacken the tension wheel nut by a maximum of one
turn, holding it with a 6 mm Allen key.
Align the adjustable index with the fixed index and
tighten the nut fully to a torque of 2.7 daNm.
07