Renault LAGUNA 2000 Manual page 41

VALUES AND SETTINGS
07
F4P engine
Procedure for tensioning the timing belt
Adjusting the timing
WARNING:
it is essential to degrease the end of the crankshaft (timing end), the
bore and the bearing faces of the timing pinion, the bearing faces of
the accessories pulley and the ends of the camshafts (timing side),
the bores and the bearing faces of the exhaust camshaft pulley and
the inlet camshaft dephaser; to prevent there being any slip between
the timing, the crankshaft, the exhaust camshaft pulleys and the inlet
dephaser, which would risk destroying the engine.
NOTE:
to make it easier to position the grooves horizontally, position the pulley and
dephaser, then tighten the old nut of the pulley and the old bolt of the
dephaser to a torque of 1.5 daNm MAXIMUM. Check that the pistons
are positioned at mid-stroke (to prevent any contact between the
valves and the pistons).
Position the grooves of the camshafts horizontally as shown in the
diagram below (rotating the camshafts using tool Mot. 799-01 if
necessary).
07-24