air con HONDA CIVIC 2000 6.G Workshop Manual

lnstallation
1. lnsert the intermediate shaft assembly into the dif-
ferential.
CAUTION: Hold the intermodiate shaft horizontal
to prevent damag€ to the difterential oil seal'
NOTE: Clean the areas where the intermediate shaft
contacts the transmission (differential) thoroughly
with solvent or carburetor cleaner, and dry with com-
Dressed air,
2. Install the three dowel bolts, then tighten them'
DOWEL BOLTS10 x 1.25 mm39 N.m {i1.0 kgf'm, 29 lbf'ftl
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16-23

Steering Gearbox
l.r
Rack Guide Adjustment
NOTE: Perform the rack guide adjustment with the
wheels in the straight ahead position.
1. Loosen the rack guide screw locknut with the spe-
cial tool, then loosen the rack guide screw.
LOCKNUT WRENCH, 40 mm07916 - SA5000r
Tighten the rack guide screw until it compresses the
spring and seats against the rack guide, then loosen
rt.
Retighten the rack guide screw to 4 N'm (0.4 kgf m,
2.9 lbf.ft), then back it off to specified angle.
Specilied Return Angle: 30' max.
Tighten the locknut while holding the rack guide
Check for tight or loose steering through the com-
plete turning travel.
Recheck steering effort (see page 17-4).
4.
RACK GUIDE SCREW
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Removal
NOTE: Using solvent and a brush, to wash any oil and
dirt off the gearbox. Blow dry with compressed air.
1. Raise the front of vehicle, and support it on satety
stands in the proper locations (see section I ).
2. Remove the front wheels.
3. Remove the steering wheel (see page 17-35).
4. Remove the steering loint cover
Remove the steering joint lower bolt, and discon-
nect the steering joint by moving the joint toward
the column.
(cont'd)
17-5
STEERING JOINT COVER
LOWER BOLT
STEERING JOINT

Reassembly
NOTE:
. Clean the disassembled parts with solvent, and dry them with compressed air. Do not dip the rubber parts in solvent.
. Alwavs replace the non reuseable parts with new ones before assembly
. Do not allow dust, dirt, or other foreign materials to enter the steering gearbox.
-6,1
PINION OUST SEALReplace.RACK ENO BUSHING
\
^lr
r@
-6i
GEARBOX MOUNTING CUSHIONS
V."^pR,NG,3smm
tr
a/
^$'q0

")*o''o"'"'*
DISC WASHER
RACK GUIDE
(cont'd)
17-9
tJ

Steering Gearbox
Reassembly (cont'dl
LApply a thin coat of grease to the inside surface of
the rack end bushing.
Grease quantity: 1 - 3 S 10.04-0.1 ozl
CAUTION: Do not till the slots with greas€; th€y
must remain open to serve as air passages,
Install the rack end bushing by aligning the round
projection on the bushing with the hole in the cylin-
der housing
4.
Grease the steering rack teeth.
Install the steering rack into the cylinder housing
carefully to avoid damaging the rack end bushing.
CYLINDER HOUSING
17-10
11. Adjust the rack guide screw (see page 17-5).
Drive in the steering pinion in the gear housing with
the soecial tools.
ORIVER.22 mm l.D.o7716-qr20100SNAP RING, 35 mm
PINION DUSTSEALReplace.
Vinyltape
STEERINGPINION
7.
Install the 35 mm snap ring securely in the gear
housing groove.
Apply vinyl tape to the pinion shaft, then coat the
vinyltape with grease.
Install the pinion dust seal on the gear housing until
it seats properly, then remove the tape.
Grease the sliding surface of the rack guide, and
install it on to the gear housing.
Install the spring, disc washer and rack guide screw
on the gear housing.
NOTE: Install the disc washer with its convex side
facing in.
LOCKNUT
SPRING RACK GUTDE
RACK GUIOE SCREW
10.
Dtsc w,
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Pressure Control
Low assist at higher speeds:
WhensteeringresistanceIsIow,suchaswhendrivingathighspeeds,orwhendrivingstraightahead,theinputshaftis
near or in the neutral position, so there is little or no fiow ro any of the power cylinder orifices. Most oI the feed pressure
fromthepumpisbypassedtothereservoir.Becauseofthis,thepressurestaysthesameinbothsidesofthepowercy||n-
der, resulting in low or no asslst
VALVE From PUMP
SECTION A-A
RETURN PASSAGElTo RESERVOIRI
POWER CYLINDER
STEERING GEARBOX
High assist at lower speeds:
When steering resistance is high. such as when driving at low speeds' or when turning the wheel wirh the vehicle
stopped,thedifference|nang|ecreatedbetweentheinputshaftandtheVa|veopensthef|uidpassageononeside,and
c|osesthefluidpassageontheotherside,ateachpairoforifices'Thef|uidpressureincreasesinthesideo|thepower
cy|inder|edbythe|argerf|uidpassage'Thisincreasedpressurepushesontherackpiston,a|lowingthesteeringwhee|to
be turned with light effort. on the other side of the power cylinder, the return passage opens allowing the steering tluid to
returnthroUghtheinputshafttothereservoir'Thef|uidpassagestothepowercy|inderautomatica||ychangeins|ze,
increasing as the steering resrstance increases. In other words, the passages become larger and power assist increases
when the steering effort would normally be high, (for example' when parking or making low speed turns)' and the pas-
sagesbecomesma||erandpowerassistdecreaseswhenthesteeringeffortwou|dnorma||ybe|ow,(forexamp|e,when
driving at high speeds or straight ahead).
FLUIO PASSAGE TO
POWER CYLINDER
/t=\\a!-4,))
=YjJ
RESERVOIR
SECTION A-A
l'
{High fluid Pressure}

Troubleshooting
General Troubleshooting
Check the following before you begin:. Has the suspension been modified in a way that would affect steering?. Are tire sizes, tire variety and air pressure correct?. lsthe steering wheel original equipment or equivalent?. lsthe powersteering pump belt properlyadiusted?
. ls steeringfluid reservoirfilledto proper level?. ls the engine idle speed correct and steady?
Hard Steering (Check the powor assist. se€ page 17-3o. lfthe torce is over 29 N (3.0 kgf, 6.6lbo, Procede with this troubleshootinq.)
Abnormallluid pressure
{fluid pressureis too high)
Faulty valve body unit
Relief pres-sure too low
Abnormal
Faulty llow control valve(Replace the pump es anassembly)
Ch€ck the feed snd return circuit lin€s ano nosebetw6€n the gearbox and pump for clogging andd€lormation.
Normal line and hose
Check the pump fluid pressure(soe page 17-34).l/easure steady-state tluid pres-s!re while idling with the bothvalves tully open.It should be 1.500 kPa (15 kgf/cmr,213 psi) or below.
Normal
Check th€ flow control vslve (see page 17-42).. Chock the valvo lor smooth movement in the hous-ing.. Check the reliefvalve for leaks.
Check the pump fluid pressure
{see page 17-34).Measure pump relief pressurewhile idling with the pressure con-trol valve Iully closed.It should be 6,400 - 7,400 kPa (65 -
75 kgflcm,,920 - 1,070 psi)
Normal relisf pressure
17-22
Go to page 17-23Faulty pump assembly

I
AbnormalDeformed
Faulty cylinder lines
Adiustment OK
Faulty valve body unit
Normal
IICompair the steering to another alike
vehicle.
/
Check the force required to turn
the wheel (see Page 17 30i
Start the engine and measure the
force required to turn the wheel
to the right and left. Difference of
the lorce required to turn the
wheel to the right and to the Ieft
should be 2.9 N 10 3 kgf, 0.7 lbf)
or below.
Check for bent rack shaft
Check rack guide adiustment (see
page 17-33).
(cont'd)
17 -23
1,,

/
Uneven or rough steering
Steering wheel kicks back
during wide t!rns.
ll,
)
Adjust the rac* guide (see page 17-3).
lf the problem is not corrected bY
adjusting the rack guide, replace
the gearbox.
Adiust the belt tension. Feplace the
belt, il necessary (see Page 17 32).
lfthe engine stalls when the wheel
is turned while car is stopped or
moving at low speed, adjust the
idle spe€d (see section 11)
ldle speed low or erratic.
Check power sleering fluid level lf
the level is excessively low, check
lor leaks in the system. Add lluid
to the specified level.
Air in reservoir, or check Powersteering Iluid level.
lf ltuid level is OK, check O-rings
and seals on both ends of thepump inlet hose, and the P/Spump housing mating surfaces
and the pumP shaft oil seal for
suction leaks. RePlace Parts as
nocessary.
Adjust the belt tension (see Page17 32)or replace belt.Pump belt sliPPing on PLrlleY(pump stops momentarilY)
Check if pump press{rre is normal
and the gauge needle travel is 500
kPa (5 kgl/cm?, 7l Psi) or less.
Chock the flow control valve if the
needle travel exceeds 500 kPa (5
kgflcm', 71 Psi). l{ the flow control
valve is normal, replace the PumPas an assemoly.
Install the power steering pressure
gauge, Close the Pressure contrcl
valve fully and m6ssure the PumPpressure {s€e page 17-34}.
17 -25,

IRack Guide Adjustment
NOTE: Perform rack guide adjustment with the wheels
in the straight ahead Position.
1. Loosen the rack guide screw locknut with the
cialtool.
'96 - '97 models:
Loosen the rack guide screw
'98 - '00 models:
Remove the rack guide screw and remove the old
sealant off of the threaded section.
Apply new sealant all around the threads. Loosely
installthe rack guide screw
Tighten the rack guide screw to 25 N'm (2.5 kgf'm.
18 lbf.ft), then loosen it.
Retighten the rack guide screw to 3 9 N'm (0.4 kgim,
2.9 lbf.ft), then back it off to specified angle.
Specified Return Angle: 20" max.
Tighten the locknut while holding the rack guide
screw.
Check for tight or loose steering through the com-
plete turning travel.
Perform following insPections:
. Steering operation (see page 17-30).
. Power assist with vehicle parked.
4.
LOCKNUT WRENCH, 40 mm
lr
17-33
Fluid Replacement
Check the reservoir at regular intervals, and add fluid as
necessary.
CAUTION: Always us€ Genuine Honda Power Stearing
Fluid-V or S. Using any other type of power sto€ring
tluid or automatic transmission lluid can cause
increased wear and poor steering in cold weathor.
SYSTEM CAPACITY:
0.85 liter 10.90 US' qt,0.75 lmp'qt)
at disassembly
RESERVOIR CAPACITY:
0.4 liter (0.42 US. qt, 0.35 lmP.qt)
LEVEL LINE
LOWER LEVEL LINE
1. Raise the reservoir, then disconnect the return nose.
2. Connect a hose of suitable diameter to the discon-
nected return hose, and put the hose end in a suit-
able container.
CAUTION: Take care not to spill tho fluid on the
body and parts. Wipe off any spill€d fluid at oncs'
3. Start the engine, let it run at idle, and turn the steer-
ing wheel from lock-to-lock several times When
fluid stops running out of the hose, shut off the
engine, Discard the fluid.
4. Reinstall the return hose on the reservoir'
5. Fill the reservoir to the upper level line.
6. Start the engine and run it at fast idle, then turn the
steering trom lock-to-lock several times to bleed air
trom the system.
7. Recheck the fluid level and add some it necessary.
CAUTION: Do not fill the reservoir beYond the
upper l€vel line.
HOSE

lnspection and Adjustment
Pump Pressure Check
Check the fluid pressure as follows to determine
whether the trouble is in the pump or gearbox.
NOTE: First check the power steering fluid level andpump 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/Sjoint adaptor (pump) as shown.
ourlEr HosE FnrNo ,t"ll lrilu"ott
P/S JOINT ADAPTOB IHOSEI07RAK - S0i10l2rol07RAK- 50{{)120
P/S PRESSURE GAUGE07406 - 001000Aor07406 - 0010001
4. Open the shut-off valve fully.
5. Open the pressure control valve fully.
17-34
(Pa.t of tooll11 N.m11.1 kgt m, 8 lbf.ftl
PRESSURECONTROL VALVE
SHUT.OFFVALVE
PUMP OUTLETFITTING
6 x 1.0 mm BOLTlPart of tool)11 N.m11.1 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
the pump is in good condition, the gauge should
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).
Close the pressure control valve, then close the
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 GAUGE07{16 -@1@OA
oi
SI{UT.OFF VALVE