Ruggerini Ry100, Руководство по ремонту

Страница: 17 / 36

17.0
service
00497R0990 - 15-07-2000
28
27
25
26
I n j e c t i o n I n j e c t i o n I n j e c t i o n I n j e c t i o n I n j e c t i o n I n t a k e I n t a k e I n t a k e I n t a k e I n t a k e
E x h a u s t E x h a u s t
E x h a u s t E x h a u s t E x h a u s t
F F
F F F E E
E E
E
C C
C C
C
F F
F F F
D D D D D
Rotor A Rotor A
Rotor A Rotor A
Rotor A Rotor B Rotor B
Rotor B Rotor B
Rotor B
9.11 Checking the oil pump
Make sure that the oil pump cover is in a good condition.
After demounting, examine the rotors and replace them if their
lobes or centerings are damaged. To check the degree of
pump wear, measure the dimensions of rotor A
A
A A A and rotor B
B
B B B
(fig. 25) and compare them with the values in the following
table:
E 26.205
to
26.27 26,31
F 7.97
to
7.99 7.93
Assembly mm Assembly mm
Assembly mm Assembly mm
Assembly mm Limite usura mm Limite usura mm
Limite usura mm Limite usura mm
Limite usura mm
C Ø25.97
to
25.99 Ø25,92
D Ø34.96
to
34.99 Ø34,87
OIL PUMP ROTOR DIMENSIONS AND PLAY
The entire pump must be replaced if the wear is greater.
The coupling play between the external oil pump rotor and the
housing on the cover of the timing system is:
Assembly mm Assembly mm
Assembly mm Assembly mm Assembly mm
Limite di usura mm Limite di usura mm
Limite di usura mm Limite di usura mm Limite di usura mm
0.16
to
0.215 0.345
Make sure that the oil pump recess in relation to the surface
of the timing system cover (fig. 26) is between :
Assembly mm Assembly mm Assembly mm Assembly mm Assembly mm Wear limit mm Wear limit mm Wear limit mm Wear limit mm Wear limit mm
0.03
to
0.07 0.11
Make sure that there are no impurities in the by-pass valve on
the cover on the timing system side by unscrewing the
inspection plug near the fuel flow limiter.
NOTE: NOTE: NOTE: NOTE: NOTE: make sure that the valve lifting mechanism (fig. 28, A)
is not damaged and that there is nothing to hinder its movement.
Check the dimensions of the camshaft pins (D, fig. 28) and the
corresponding housings in the casing and cover on the timing
system side. The max. xonstructional play is 0.032 to 0.061
mm.
WARNING: WARNING: WARNING: WARNING: WARNING: replace the shaft if the wear on the cams or pins
exceeds:
0.1 mm 0.1 mm 0.1 mm 0.1 mm 0.1 mm (injection cams and pins)
0.3 mm
0.3 mm 0.3 mm 0.3 mm 0.3 mm (intake and exhaust cams)
9.12 Camshaft
Make sure that the cams and bearing pins are not scored or
worn. Check the dimensions as indicated in fig. 27.
Ø17.973 Ø17.973 Ø17.973 Ø17.973 Ø17.973
to
17.984 17.984 17.984 17.984 17.984
DDDDD DDDDD
A A
A A A
Ø17.973 Ø17.973 Ø17.973 Ø17.973 Ø17.973
to
17.984 17.984 17.984 17.984 17.984
A.C. PUMP INTAKE INJECTION EXHAUST
34.3 34.3 34.3 34.3 34.3
to
34.35 34.35 34.35 34.35 34.35
28.79 28.79 28.79 28.79 28.79
to
28.81 28.81 28.81 28.81 28.81