Nissan Terrano model r20 series 2004. Instruction — part 298
Inspection
HOSES AND CONNECTORS
I
Check condition of vacuum hoses and connectors.
I
Check vacuum hoses and check valve for air tightness.
CHECK VALVE
I
Check vacuum with a instruction vacuum pump.
Connect to booster
side
Vacuum should exist.
Connect to engine
side
Vacuum should not exist.
VACUUM WARNING SWITCH
Test continuity though vacuum warning switch with an ohmmeter
and vacuum pump.
Vacuum
Less than 26.7 kPa
(267 mbar, 200 mmHg,
7.87 inHg)
0
Ω
33.3 kPa
(333 mbar, 250 mmHg,
9.84 inHg) or more
Ω
YBR447
YBR448
SBR007A
VACUUM HOSE
BR-22
VACUUM PUMP (TD27Ti ENGINE)
1. Install vacuum gauge.
2. Run engine at 1,000 rpm or more.
3. Check vacuum.
Specified vacuum:
93.3 kPa
(933 mbar, 700 mmHg, 27.56 inHg) or more
VACUUM PUMP (ZD30DDTi ENGINE)
Refer to EM section, “INSPECTION” in “VACUUM PUMP —
Removal and Installation”.
NBR004
VACUUM HOSE
Inspection (Cont’d)
BR-23
Removal and Installation
I
Drain oil from vacuum pump before removal.
Instructionly rotate fan belt clockwise to discharge any oil which
may have accumulated in vacuum pump.
I
Install vane so that its round surface faces pump housing.
I
After installing vacuum pump assembly, apply 5 m
(0.2 Imp fl
oz) of engine oil into vacuum pump assembly. Then, make sure
that pulley can be smoothly rotated by hand.
Inspection
Clean all parts and check them as follows:
I
Check for wear or scratches on mating surfaces of rotor and
vacuum pump housing and on rotor and center plate. If wear
or scratches are noted, replace those parts.
I
Check for wear or scratches on vanes. If necessary, replace.
NBR131
NBR132
NBR133
VACUUM PUMP (TD27Ti engine model)
BR-24
I
Check inner wall of vacuum pump housing for wear. If
necessary, replace.
I
Check rotor shaft for wear. If necessary, replace.
I
Check valve locations and copper washers for bends or defor-
mation. If necessary, replace.
I
Check that valve operates smoothly when slightly pushed.
Replace if necessary.
I
Check for air leakage with 98 to 490 kPa (1.0 to 4.9 bar, 1 to
5 kg/cm
2
, 14 to 71 psi) of air pressure.
Replace if necessary.
NBR134
SBR194
SBR195
VACUUM PUMP (TD27Ti engine model)
Inspection (Cont’d)
BR-25
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст