Ruggerini Ry100, Руководство по ремонту

Страница: 29 / 36

29.0
service
00497R0990 - 15-07-2000
12.17 Injection lead
To ensure the injection lead is accurately adjusted, it is
advisable to define the shims to insert under the pump by
measuring the dimension between the pump bearing surface
and the tappet. Proceed in the following way:
1) turn the flywheel to the compression phase
2) insert the tappet pad into the housing in the engine block,
pointing the exhaust side towards the tappet roller (see fig.
30 page 18)
3) align the dynamic lead punch mark (IP IP
IP IP
IP) on the flywheel with
the reference mark of the tool code 366.24 366.24
366.24 366.24
366.24 (fig. 76)
4) using a depth gauge (fig. 77), measure the dimension
between the injection pump bearing surface and the tappet
pad.
5) subtract 51.6 mm 51.6 mm
51.6 mm 51.6 mm
51.6 mm from the dimension measured on the
gauge; the result represents the theoretic thickness of the
seals to insert under the injection pump.
NOTE: if the flywheel or a crank component is replaced, make
sure that the punch mark on the flywheel (TDC, fig. 76) and
the reference mark of the tool code 366.24
366.24
366.24 366.24 366.24, match when
the piston is at top dead center
12.16 Valve play
Adjust the play between valves and rocker arms in either a hot hot
hot hot
hot
or cold condition or cold condition
or cold condition or cold condition
or cold condition, to the following values (fig. 75):
76
75
73
74
Lead values in degrees and millimeters on the flywheel:
The punch marks on the flywheel indicate (fig. 76):
TDC = top dead center
IP = start of delivery
NOTE: NOTE: NOTE: NOTE: NOTE: To prevent oil leaks, apread sealant (Motorsil) on the
threads of the stud bolts and washer bearing surfaces in the
rocker arm chamber before tightening the nuts.
Since the automatic decompression device opens the exhaust
valve near TDC, play must be adjusted during the expansion
phase, a few degrees after TDC.
hot hot hot hot hot
cold cold cold cold cold
0.15 mm (intake/exhaust)
0.20 mm (intake/exhaust)
Insert the rocker arm casings, the partition (A, fig. 75), the
head seal and the head. Tighten the head fixing nuts evenly
and alternately (fig. 74) to the following value:
4 Kgm (39.2 Nm) 4 Kgm (39.2 Nm)
4 Kgm (39.2 Nm) 4 Kgm (39.2 Nm)
4 Kgm (39.2 Nm)
A A
A A
A
A A
A A
A
LEAD
IP IP IP IP IP
24°±1° (56.6 mm)
TDC