Renault LAGUNA 2000 Manual page 33

K4M engine
Procedure for tensioning the timing belt
nd
2 PROCEDURE
The second procedure is used for the replacement
of all components requiring the slackening of one
or more of the camshaft pulleys.
All the camshaft nuts must be replaced during this
operation.
Adjusting the timing
WARNING: it is essential to degrease the
following: the end of the crankshaft (timing side),
the bore of the timing pinion, the bearing faces of
the accessories belt as well as the ends of the
camshafts (timing side) and the bores of the
camshaft pulleys, to prevent there being any slip
between the timing, crankshaft and camshaft
pulleys which would risk destroying the engine.
Position the camshaft grooves, as illustrated below, by
tightening the two old camshaft pinion nuts on the
studs at the end of the camshafts.
VALUES AND SETTINGS
07-16
Fit tool Mot. 1496, on the end of the camshafts.
Position the camshaft pulleys pretightening the new
nuts (without locking the nuts, clearance between
the nut and pulley of 0.5 - 1 mm).
Check that the crankshaft is resting on the Top Dead
Centre pin (crankshaft groove (5) upwards).
07