power steering fluid HONDA CIVIC 1999 6.G Workshop Manual

Unit of length: mm lin)
STANDARD {NEW) SERVICE LIMITMEASUREMENT
Differential
Dtri"*"t"|p'.b"gear
S"t rrg-t" b""il"s
Pinion shaft contact area LD.
Carrier-to pinion clearanceDrive shaft contact area l.D.Carrier to driveshaft clearance
BacklashLD.Pinion gear to-pinion shafl clearance
)uter race clearance
18.010 18.028'0.7091 - 0.7098)
0.023 0.057 (0.0009 - 0.0022) 0.1 (0 004)
26.025 - 26.045 (.0246 1 0254\0.045 0.086 (0.0018 - 0.0034) 0.12(0.005)
0 05 - 0.15 i0 002 0.006)18 042 18.066 {0.7103 0.7" l3)
0.055 - 0.095 (0.0022 - 0.0037) 0.15 {0.006)
0 0.15 (0 - 0.006) Adjlrst
MEASUBEMENT Wire DiaO.D. Free Length I No. of Coils
SpringsPH regulator valve spring 1 2 (0 047)
PH control valve spring 1 7 {0.067)PL regulator valve spring 0 9 (0.035)
PH'PL control valve spring 1 0 (0 039)
crutlh reduc'ns vdrve spnns ] :19 9]:lLLbrication valve spring I b (u ubJr
Shitt valve spring 1 4 (0.055)
Shift control valve spring 1 0 (0.039)
Stan clutch control valve spring 0.4 (0 016)
Pitot regulator valve spring 0.6 (0 024)
Start clutch valve accumulator spring 1 2 \0 O47)
Reverse control valve spring 1 2 (0.047)
Shift inhibitor valve spring 1 3 (0 051)
9.0 {0.354)13.4 (0.528)
1.2lO.2A3\10.0 (0.394)
16.8 (0.661)
13.4 (0.528)
8.2 (0.323)
1 .4 t0.29114.1 (0.161)
5.7 t0.224)8.3 {0.327)9.4 (0.370)
13.2 (0.520)
26.7 (1.051)
39.4 (1.551)
14.6 (0.575)
31.4 (1.236)
44.4 \1.14al51.6 (2.031)
34.1 (1.343)
19.3 (0.760)
12.1 (0.476)
9.5 (0.374)
29.8 (1.173)
31.4 (1.236)
48.3 (1.902)
r0.08.11.28.68.0
13.01.56.85.012.311.010.6
Section 14
SteeringSection 17
M/S: [,4anual steering, P/Sl Power steering*: When using a ne; bett, adjust dellection or tension to new values. Run the engine for 5 minutes then turn it off-
Readjust the deflection or tension to used belt values.
cw
MEASUREMENTSTANDARD {NEWI
Steering wheelPlay at steering wheel circumferenceStarting load at steering wheelcircumferenceN (ksf, lbf)Manual steeringPower steering Engine running
0 - 10 (0 0.4)
15 (1.5,3.3)
29 (3.0,6.6)
GearboxAngle of rack guide screw loosened M/S
from locked position P/S
Preload at pinion gear shaft N m (kglcm, lbfin) M/S
20!5"20'Max0.5 - 1.7 (5 - 17,4.3 - 14.8i
0.6 1.2 (6 - 12, 5.20 - 10.42)
Pump pressure with valve closed(oil temp./speed: 40'C (105"F) min./idleDo not run for more than 5 seconds).kPa (kgtcm?, psi)
6,400 - 7,400 {65 - 75, 920 - 1,070)
Power steeringfluidRecommended power steering fluid
Fluid capacity | {US qt, lmp q0Reservoir
HONDA Power Steering Fluid
0.85 (0.90,0.75) at disassembly0.4 {0.42.0.35}
7.5 11.0 {0.30 - 0.43)with used belt
5.0 7.0 (0.20 0.28) with new belt10.5 - 14.0 10.41 - 0.55) with used belt7.5 10.010.30 0.39) with new belt
390 540 {40 55,88 '120) wrth used bek
340 - 490 (35 - 50, 77 - 110) with used belt
740 880 (75 - 90, 170 - 200) with new belt
640 780 (65 - 80, 143-176)with newbelt
Power steeringbelt*
Deflection with 98 N (10 kgf,22 lbf)
between pulleys '99 modell 81642 Engine Type only
'96 '99 models: Other Engine TYPes
ron.ionffiN (kgf, lbf) '99 model: 81642 Engine Tvpe only'96 -'99 models: Other Engine TYPes'99 modelr 81642 Engine TYPe onlY'96 '99 models: Other Engine TYPes
3-17

ILubrication Points
For the details of lubrication points and types of lubricants to be applied, refer to the lllustrated Index and various workprocedures (such as Assembly/Reassembly, Replacement, Overhaul. Installation, etc.) contained in each section.
No.LUBRICATION POINTS
Engine
LUBRICANT
"Energy Conserving" grade oil,The oil container may also display the Apl Certification markshown below. Make sure it says ,,For Gasoline Engines.,,SAE Viscosity: See chart below,
I
TransmissionManualGenuine Honda MTF*1
Genuine Honda Premium FormulaAutomatic Transmission Fluid (ATF)*,
Genuine Honda CVT Fluid*3
Genuine Honda DOT3 Brake Fluid*a
Automatic
CVT
3Brake Line
ClL,tci t""e4
I
Genuine Honda DOT3 Brake Fluid*aPower steering gearboxSteering grease P/N 08733 - BO70EShift lever pivots (manual transmission)Grease with molybdenum disulfide7-:ti
9
10'l'l
l3
14
't7
18
19
20
2122
Release fork (manual trancmi Steering bootsTailgate hinges and latches (2-door HatchbacklSteering ball joints
Shift lever (automatic transmission)Pedal linkageBrake master cylinder pushrod
Super High Temp Urea crease (p/N 08798 - 9OO2)
i Multi-purpose grease
I
I
Honda White Lithium Grease
Multi-purpose grease
Silicone grease
@
Trunk hinges and latch (4-door Sedan and 2-doorCoupe)Door hinges upper and lowerDoor opening detentsHood hinge and hood latch-FUet T ter ttd
Clutch master cylinder pushrodThrottle cable end and throttle linkageRear brake shoe linkagesSteering wheel (back side)
23
E-
Caliper piston seal, dust seal,caliper pin. pistonThrottle cable end (dashboard lower panel)
Power steering system (for cars with p/S)
Air conditioning compressorComDressor oil:SANDEN: SPlo P/N 38897 - p13 -A01AH or 38899 - p13_ A01{For Refrigerant: HFC-134a (R-134a))
CERTIFICATION SEAL
ffi
NorE: The items m arked * 1, *2, +3, *4 and +5 on above chan are described as folows:*1: Always use Genuine Honda Manual Transmission Fluid (MTF). Using motor oil can cause stiffer shifting because itdoes not contain the proper additives.*2: Always use Genuine Honda premium Formula Automatic Transmission Fluid (ATF). Using a non-Honda ATF can affectshift quality.+3: Use Genuine Honda cVTfluid only usingotherfluid can affect tra nsmission operation and may reduce transmission life.*4: Always use Genuine Honda DoT3 Brake Fluid. Using a non-Honda brake fluid can cause corrosion and dec.ease the lifeof the svstem.*5: Always use Genuine Honda Power steering Fluid. using any other type of power steering fluid or automatrc transmissionfluid can cause increased wear and poor steering in cold weather.
4-2
Recommended Engine Oil
Engine oil viscosity forambrent temperature ranges
API SERVICE LABEL

20. Remove the shift cable (CVT)
WASHER
Pt-Aslc
21. Disconnect the Power
switch connector, and
cramp.
LOCKNUT29 N.m {3.0 kgf m,22lbf'ft}
steering pressure (PSP)
remove the wire harness
CLIP
ll
I
Remove the radiator caP.
!!!@ usa care when l€moving the tadiator
Ap to avoid scalding by hot coolant or steam'
Raise the hoist to full height.
SHIFT CABLE
(cont'd)
25.
26.
27.
24. Remove the front tires/wheels and splash shield.
u x l.u mm SHIELD9.8Nm(1 0 kqt'm,
7.2lbf.ftl
Drain the engine coolant (see page 10-7). Loosen
the drain plug in the radiator.
Drain the transmission fluid Reinstall thedrainplug
using a new washer (see section 13, 14).
Drain the engine oil. Reinstall the drain bolt using a
new washer (see page 8-6).
28. Remove the shift rod and extension rod (M/T)
SHIFT ROD
EXTENSIONROD
8 x 1.25 mm22 N.m t2.2 kgf'm, 't6lbtft)
ER
6x1.0mm

l.
t
Steering
Speciaf Tools ....."'.....17-2
Manual Steering
Component Locations
lndex ................ ....... 17-3
Inspection and Adiustment
Steering Operation "'......"............... 17-4
Rack Guide Adiustment ................... 17-5
*Steering Wheel
(See power steering section)
*Steering Column
(See power steering sectionl
Steering Gearbox
Removal ................. 17-5
Disassembly ......."" 17-7
ReassemblY ..'......... 17-9
lnstallation ............. 17-13
Power Steering
Component Locations
lndex "......."..... """' 17-15
System DescriPtion
Fluid Flow Diagram .........""............. 17'16
Steering Pump ............'... "........"'...-- 17 -17
Steering Gearbox .".................'...'.'.' 17-20
Troubleshooting
Generaf Troubleshooting ..........--.... 17'22
Noise and Vibration ......................... 17 -26
Ffuid Leaks .............17-28
Inspection and Adiustment
Steering Operation'......."'........'...... 1 7-30
Power Assist Check
With Vehicle Parked .."................ 17-30
Steering Linkage and Gearbox ....." 17-31
Pump Beft ...--.""".. 17-32
Rack Guide Adiustment .'.......'.......'. 17'33
Fluid Replacement .....'.."................. 17-33
Pump Pressure Check .............'....-. " 17 -34
'Steering Wheel
Removal .."'........'... 17-35
lnstallation ............. 17-35
Disassembly/Reassembly ......'.....'.' 17-36
*Steering Column
Removal/lnstallation ....'........... ---.... 17'37
lnspection .............. 17'38
Power Steering Hoses, Lines
Fluid Leakage Inspeetion ............'.... 17-39
Replacement ......".. 17-39
Power Steering PumP
Removal/lnstallation .'.'..'..'............. 17-40
Disassembly ".........17-41
fnspection .......---'." 17'42
Reassembly ..'.........17-44
Steering Gearbox
Removal ....'........."' 17'47
DisassemblY ..........' 17-49
Reassembly '........... 17-55
lnstallation ............. 17-65
Ball Joint Boot Replacement .......'.. 17-68
Ir/
lp

System Description
Fluid Flow Diagram
The system is a compact rotary-valve-type power steering, connected to the steering gearbox. The fluid pressure is pro-
vided by a vane-type pump which is driven by the engine crank pulley. The amount of fluid and pressure is regulated by
the flow control valve built into the pump. The fluid pressure from the pump is delivered to the valve body unit around the
pinion of the steering gearbox. The valve inside the valve body unit controls the hydraulic pressure and changes the direc-
tion of the flow. The fluid then flows to the power cylinder. where rack thrust is generated. Fluid returning from the power
cylinder flows back to the reservoir, where the fluid is "filtered" and supplied to the pump again.
RESERVOIR
VALVE BOOY UNIT
SUB.VALVE
FLOW CONTROL VALVESTEERING GEARBOX
17-16

System Description
Steering Gearbox
The rack-and-pinion type steering gearbox has a valve body unit incorporated with the pinion to control the steering fluidpressure. Steering fluid from the pump is regulated by a rotary valve in the valve body unit and is sent through the cylin,der line to the power cylinder, where hydraulic pressure is applied. The steering fluid in the other side of the power cylin,der returns through the cylinder line and valve body unit to the reservoii.
VALVE EODY UNIT
CYLINDER LINE
To RESERVOm +-From PUMP -;
POWER CYLINDER
Valve Body Unit
Inside the valve body unit is the valve, which is coaxial with the pinion shaft, and controls the steering fluid pressure. Thevalve housing is connected with the fluid line from the pump, the return line to the reservoir, and the two cylinder linesfrom the respective power cylinder. The pinion shaft is double - structured with the input shaft connected to the piniongear, both of which are interconnected with the torsion bar.
The pin inserted in the valve and the pinion shaft groove engage; this allows the pinion shaft to rotate together with thevalve. Because of this construction, the difference in angle in the circumferential direction between the input shaft and thevalve becomes larger according to the torsional strength of the pinion or steering resistance. However, maximum torsionbetween the shafts is regulated by the engaged splines of the shafts at the pin engagement section to hold the torsion barwithin the set value,
This allows the steering system to function as an ordinary rack-and-pinion type steering if the steering fluid is not pressur-
ized because of a faulty pump,
VALVE
Difforence in angle botwoon theinput shaft and pinion shsft
PINION SHAFT
lo
INPUT SHAFT
-l
a
17-20
INPUT SHAFT

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

/
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,

Inspection and Adjustment
Steering Operation
Place the front wheels in the straight ahead position,
and measure the distance the steering wheel can beturned without moving the front wheels.
ROTATIONAL PLAY: 0 - 10 mm l0 - 0.39 inl
lf the play exceeds the service limit. perform rack guide
adjustment (see page 17-33).
lf the play is still excessive after rack guide adjustment.inspect the steering linkage and gearbox as describedon the nel(t pag€.
ROTATIONAL PLAY
17-30
Power Assist Gheck with
Vehicle Parked
1. Check the power steering fluid level (see page 17-33) and pump belt tension (see page 17-32).
2. Start the engine, allow it to idle. and turn the steer-ing wheel from lock-tolock several times to warm
up the fluid.
3. Attach a spring scale to the steering wheel. With theengine idling and the vehicle on a clean, dry floor,pull the scale as shown and read it as soon as thetires begin to turn.
The scale should read no more than 29 N (3.0 kgf.
6.6 lbf). lf it reads more, check the gearbox andpump,
D0