Pump Pressure Check - Honda Civic Service Manual

lnspection and Adjustment
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 pr$sure hos€ with care
so as not lo spill the power sieering tluid on tha frame
and other parts.
1. Disconnect the outlet line from the Dumo outlet fit-
ting, then installthe P/S joint adaptor (pump) on the
Dumo 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.
ourlEr HosE FnrNo ,t"ll lrilu"ott
P/S JOINT ADAPTOB IHOSEI
07RAK - S0i10l2r
ol
07RAK- 50{{)120
P/S PRESSURE GAUGE
07406 - 001000A
or
07406 - 0010001
4. Open the shut-off valve fully.
5. Open the pressure control valve fully.
17-34
(Pa.t of tooll
11 N.m
11.1 kgt m, 8 lbf.ftl
PRESSURE
CONTROL VALVE
SHUT.OFF
VALVE
PUMP OUTLET
FITTING
6 x 1.0 mm BOLT
lPart of tool)
11 N.m
11.1 kgf m, 8 lbtftl
7 .
Start the engine and let it idle.
Turn the steering wheel from lock-to-lock several
times to warm the fluid to operating temperature.
Measure steady-state fluid pressure while idling. If
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 kgf/cmr, 213 psi).
lf it reads high, check the outlet line or valve body
unit (see General Troubleshooting 17-22).
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 oressure.
lmmediately open the pressure control valve fully.
GAUTION: Do not keep lhe prossure control valve
clos€d more then 5 soconds or the pump could be
damagod by over-heating.
lf the pump is in good condition, the gauge should
read at least 6,400 - 7,400 kPa (65 - 75 kgflcm,, 920 -
1,070 psi). A low reading means pump output is too
low for full assist. Repair or replace the pump,
9 .
P/S PBESSURE GAUGE
07{16 -@1@OA
oi
SI{UT.OFF VALVE