Nanni T4.155 seriers, Workshop Manual

Page: 29 / 191

60300140 (
indice A
) 4 CYLINDERS WORKSHOP MANUAL 29/191
REPLACING THE TIMING BELT
EVERY 1000 HOURS or 2 YEARS
REMOVING THE TIMING BELT
(refer to the component part illustration for removal and reinstallation)
1) REMOVE THE TIMING BELT PROTECTION COVER
Remove the four assembly bolts, the sealing washers, the two fasteners, the
timing belt protection cover and the gasket.
2) PUT No.4 CYLINDER IN TOP DEAD CENTER POSITION ON ITS
COMPRESSION STROKE
Rotate the crankshaft fully clockwise to make the notches in No.1 and No.2 cam
shaft pulleys coincide with the top dead center (TDC) timing marks.
3) WHEN THE TIMING BELT IS RE-USED, MAKE A MARK ON THE
TIMING BELT
ADVICE:
If the timing belt is re-used, make a mark in the rotation direction on the
timing belt (engine rotation direction mark) then make timing alignment
marks on the timing pulleys and the timing belt by working as shown in the
figure opposite
.
4) REMOVE THE TIMING BELT TENSIONER
Loosen alternately the two assembly bolts and then remove them and remove the
timing belt tensioner.
5) REMOVE THE TIMING BELT INTERMEDIATE PULLEY
Remove the assembly bolt using a 10 mm hex head wrench, intermediate timing
belt pulley and the flat washer.