WORKSHOP MANUAL - lombardini service

Disassembly / Reassembly
4
Camshaft timing - Belt tightening tool
Position belt preload tool 7107-1460-049 1 over the timing belt idler
adjustment ear 2.
See "Camshaft timing - Belt Tightening and Fastening".
24
Camshaft timing - Belt Tightening and Fastening
Insert the torque wrench in the suitable tool so that the A axis of
the key fig. 25 is at 90° to the B axis of the tool in fig. 24.
Tighten in clockwise direction at 20 Nm.
Maintaining the belt tension, tighten nut 3 with another torque
wrench at 40 Nm, after having remounted the drive pulley.
Rotate the crankshaft a few times and check that the tension is as
described above.
25
The check must be carried out with the appropriate Nippon Denso
tension measuring instrument (halfway along the longest section of
the belt), the value for a cold engine must be 15±2 Kg.
Valve timing check
A = Intake valve
B = Exhaust valve
Rotate the engine in the normal direction of rotation until the No. 1
piston (flywheel side) approaches TDC- compression stroke
Check the balance of intake and exhaust valves A and B placing the
two micrometers testers on the valve collars.
26
FOCS Workshop Manual_cod. 1.5302.858_1° ed_ rev. 00
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