Ruggerini RY 103 - Injection Advance Adjustment; Injector

58
17-04-2003
01
15-01-2004
DATE
COMPILER TECO/ATI
REG. CODE
1-5302-584
MODEL N°
50871
DATE OF ISSUE
REVISION
ENDORSED
116
117 118
X
119
RY 70
75
103
110
RY 50
FUEL SYSTEM
Injection advance adjustment
Injection advance beyond the thickness of gasket A is determined
by the thickness of the pad inside the injection tappet.
To alter the value of injection advance the pad must be replaced
with another of a suitable thickness (see fig. 117-118).
To extract pad B, use a rod with a suction cap or magnet at one
end.
The replacement pads supplied have 10 different thicknesses
(between 4.0 and 4.9mm).
To alter the value of injection advance the pad must be replaced
with another of a suitable thickness (see fig. 117-118).
If reference point B does not coincide with A follow the examples in
fig. 117-118.
1) Example of delayed injection advance (fig. 117): to make B match
up with A, replace the pad with a thicker one (fig. 116).
2) Example of early injection advance (fig. 118): to make B match up
with A, replace the pad with a thinner one (fig. 116).
Note: When the thickness of the pad varies by 0.1mm under the
pump, B is delayed or brought forward by 1° on the flywheel.
Injector
Components:
1 Body
2 Union
3 Adjusting shim
4 Spring
5 Pressure rod
6 Pin
7 Nozzle
8 Nozzle cup
9 Needle valve
10 Tip
11 Duct
12 Return hole
After re-assembly, tighten ring nut 8 to a 50 Nm torque value.