Kohler Lombardini LDW FOCS 502 Euro 2, Service Manual

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59
M
L
N
B
82
83
6
mm mm
1,947 18° 0,733 11°
1,739 17° 0,606 10°
1,543 16° 0,491 9°
1,358 15° 0,388 8°
1,184 14° 0,297 7°
1,022 13° 0,218 6°
0,871 12°
Service Manual LDW FOCS 502 automotive _ cod. ED0053027270 - 3° ed_rev. 02
16. Rotate the crankshaft anticlockwise until liquid leaks
from the pipe ( M ), and then stop turning when the
flow is constant and without air bubbles.
17. Then turn slowly the crankshaft clockwise in order to
identify the exact point at which liquid stops leaking.
In these conditions, the point which coincides with
the static injection timing can be identified.
18. Act again on lever ( L ) to lower the valve and bring it
again on the piston.
19. Measure the piston lowering value by using the dial
indicator.
20. Convert the value registered from millimetres to
degrees (see “Conversion table for establishing
injection timing”).
Important
• When converting, refer to the table value that is
nearest to the registered one (see “Conversion table
for establishing injection timing”).
• For a good engine operation, the injection static
advance must be as follows:
• Engine with maximum speed up to 3000 rpm: 13° (±
1°)
• Engine with maximum speed above 3000 rpm: 15°
(± 1°)
If the static advance does not correspond to the ideal
values, change the adjustment by means of the screw (N).
To increase the angular value (higher static advance),
turn the screw clockwise.
To decrease the angular value (lower static advance),
turn the screw anticlockwise.
Important
• Half turn of the screw equals approximately 5° of
static angular advance.
21. Disassemble all equipment when the injection static
advance is reached.
22. Fasten and tighten the nut ( B ) to a final torque of
40 Nm.
Important
• Repeat on the other cylinder.
OVERHAULS AND TUNING
Conversion table for establishing injection timing
injection
advance angle
injection
advance angle