Renault LAGUNA 2000 Manual page 35

K4M engine
Procedure for tensioning the timing belt
Fit the crankshaft accessories pulley by pretightening
the bolt (without locking the bolt, clearance of 2 to
3 mm between the bolt and the pulley).
Belt tension
Check that there is still a clearance of 0.5 to 1 mm
between the nuts and camshaft pulleys.
Shift the tension wheel adjustable 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.
Pre-tighten the tension wheel nut to a torque of
0.7 daNm.
VALUES AND SETTINGS
07-18
Remove camshaft pulley locking tool Mot. 1490.
Rotate the timing system through six revolutions in a
clockwise direction (timing side) using the exhaust
cam pulley and Mot. 799-01.
Slacken the tension wheel nut by a maximum of one
turn, holding it with a 6 mm Allen key.
Align the adjustable index (A') with the fixed index (7)
and tighten the nut finally to a torque of 2.7 daNm.
Remove the crankshaft pulley in order to fit the lower
timing cover (without the mounting bolts), then refit the
crankshaft 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.
Fit the camshaft pulley locking tool Mot. 1490 using
Mot. 799-01 if necessary.
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