Pump Pressure Check - Honda Civic 1998 Service Manual

Inspection and Adiustment
Pump Pressure Check
C h e c k t h e f l u i d p r e s s u r e a s f o l l o w s t o d e t e r m i n e
whether the trouble is in the pump or gearbox.
NOTE: First check the power steering fluid level and
pump belt tension.
CAUTION: Disconnect the high pressure hose with care
so as not to spill the power steering fluid on the ftame
and other parts.
1. Disconnect the outlet line from the pump outlet fit-
ting, then jnstall the P/S joint adaptor {pump) on the
pump outlet.
2.
Connect the P/S joint adaptor (hose) to the power
steering pressure gauge, then connect the outlet
hose to the adaptor.
3.
Install the power steering pressure gauge to the P/S
joint adaptor {pump) as shown.
6 x 1.0 mm BOLT
OUTLET HOSE FTTNNG
P/S JOINT ADAPTOR IHOSE)
07MK - 5040121
oa
07RAK - S040r20
P/S PRESSURE GAUGE
07405 - 001 000A
o l
07,106 - q)l0001
lPart of tooll
1 1 N . m
(1.1 ksf.m, I lbt'ft)
PRESSURE
CONTROL VALVE
.OFF
VALVE
PUMP OUTLET
FITTING
6 x 1.0 mm BOLT
(Part ot tooll
1 1 N m
(1.1 ksf.m,8lbtft)
5.
Open the shut-off valve fully.
Open the pressure control valve fully.
17-34
6. Start the engine and let it idle.
7. Turn the steering wheel from lock-to-lock several
times to warm the fluid to operating temperature.
8. Measure steady-state fluid pressure while idling. lf
t h e p u m p i s i n g o o d c o n d i t i o n , t h e g a u g e s h o u l d
read less than 1500 kPa (15 kgflcm' , 213 psi).
lf it reads high, check the outlet line or valve body
unit (see General Troubleshooting 17-22).
9 . C l o s e t h e p r e s s u r e c o n t r o l v a l v e , t h e n c l o s e t h e
shut-off valve gradually until the pressure gauge
needle is stable. Read the pressure.
10. lmmediately open the pressure control valve fully.
CAUTION: Do not k€€p the pressure conlrol valve
closed more then 5 seconds or the pump could be
damaged by over-heating.
lf the pump is in good condition, the gauge should
read at least 6.400 - 7,400 kPa (65 - 75 kgflcn',920 -
1.070 psi). A low reading means pump output is too
low for full assist. Repair or replace the pump.
P/S PRESSURE GAUGE
07{06 - 00'llD0A
o t
SHUT.OFF VALVE