power steering fluid HONDA INTEGRA 1994 4.G Workshop Manual

Standards and Service Limits
Differential (Manual transmissionlSection 15
Differential (Automatic transmissionlSection 15
Steering - Section 17
' When using a new belt, adjust detlection or tension to new values. Run the engine lor 5 minutes then turn it off.Readiust detlection or tension to used belt values.
M€ASUREMENTSTANDARD INEW) SERVICE LIMIT
DifferentialPinion shaft contact area LD. 81881 engine818C1 engineCarrier'to-pinion clearance 81881 engineB18C t engineDriveshafvintermediate shaft contact area LD.81881 engine818C1 engineCarrier to driveshaft clearance 81881 engineBlSC'l engineCarrier-to-intermediate shatt clearanceB188l engine818C1 engine
18.000 - 18.016 (0.7087 - 0.7093)18.000 18.018 (0.7087 - 0.7094)0.0r3 0.045 (0.0005 - 0.0018)0.0'13 - 0.047 (0.0005 0.0019)
28.000 - 28.021 \1.1024-1.1032128.005 - 28.025 (1.1026 1.'1033)0.020 - 0.062 (0.0008 0.0024)0.045 , 0.086 {0.0018 - 0.0034)
0.050 - 0.087 (0.0020 0.0034)0.075 - 0.111 (0.0030 - 0.0044)
o. t aron,0.1 {0.006}
Differentialprnron gearEacklasht. D.Pinion geaFto-pinion shaft clearance
0.05 0.15 (0.002 0.006)'18.042 - 18.066 (0.7103 0.7113)0.055 - 0.095 (0.0022 0.0037)
Adjust
0.15 {0.006)
Sel ring-to-bearing outer race clearance 81881 engin€0 - 0.10 (0 0.004)Adjust
Differential taper roller bearing preloadStarting torque N.m {kgfcm, lbf.in) Bl8Cl engine2.1r - 3.04 {21.5 - 3 r.0, 13.0- 18.7)Adjust
MEASUREMENTSTANDARO INEWISERVICE LIM]T
Difterentialcarfl€rPinion shatt contact area l.D.Carrier-to-oinion clearanceDriveshafvintermediate shaft contact are l.D.Carrier-to-driveshatt clearance
18.000 - 18.018 {0.7087 - 0.7094)0.016 - 0.052 {0.0006 - 0.0020)28.00s 28.025 {1.1026 - 1.1033)0.025 - 0.066 (0.0010 - 0.0026)
0.1 {0.004)
0.12 (0.005)
Differentialprnron gearBacklasht.D.Pinion gear-to-pinion shaft clearance
0.05 - 0.15 (0.002 - 0.006)18.042 - 18.066 (0.7r03 - 0.7113)0.059 - 0.095 (0.0023 - 0.0037)
Adjust
0.15 (0.006)
Set ring-to-bearing outer race clearance0 - 0.r5 (0 - 0.006)Adjust
MEASUREMENTSTANDARD INEWI
Steering wheelRotational play at steering wheel circumferenceStaning losd at steering wheel circumferenceN {kgf, lbfl Engine running
0 - 10 {0 - 0.39)
34 \3.5,7.71
GearboxAngle of rack-guide-screw loosened from lockedposition20" i 5'
PurnpPump pressure with shut-off valve closedkPa (kgtlcm,, psi)6,400 7.400 165 75. 920 - 1. r00)
Power steeringtluidRecommended fluidFluid capacity For overhaulf (US qt, lmp q0 For fluid change
Honda power steering fluid V1.06 (1.12,0.98)
0.79 (0.83,0.70)
Power steeringbelt*Deflection with 98 N (1okgt,22lhfl
between pulleys11.5- 13.5 (0.45 0.53)with used belt8.0 - 10.010.31 0.39)with new belt
Belt tension N lkgf, lbl)Measured with belt tension gauge390 - 540 (40 - 55, 88 - 120) with used belt740 880175 90. 170 200) with new belt

Lubrication Points
For the details ol lubrication points and type of lubricants to be spplied, reter to the illustrated index and various workprocedure (such as Assembly/Reassembly, Replacement, Overhaul, Instatlation, etc.) contained in each section.
No.LUBRICATION POII\ITSLUBRICAI\IT
IEngineAPI Service Grade: Use SG or SH "Energy Conserving
II" grade oil.
The oil container may also display the API Certifications€al shown below. Make sure it says'For GasolineEngines.'
SAE Viscosity; See chan below.
Transmission Manual
Automatic
API Service Grades: SF or SG
SAE Viscosity: 1O W-3O or 1O W-4O
Honda Premium Formula or DEXRON@ II
Automatic transmission fluid
3Brake line (lncludes Anti-lock brake linelBrake fluid DOT3 or DOT4
4Clutch lineBfake tluid DOT3 or DOT4
Power steering gearboxSteoring grease P/N 08733-BO7OE
Release fork (Manual transmission)Supe. High Temp Urea Grease (P/N O8798*9OO2)
8
Throttle wire end {Dashboard lower Danel holel
C.uise cont.ol actuatot wire end
{Dashboard lower Danel holel
Silicone grease
I
10'I 'l
12
13
14
15
to
17
18
Throttle cable end (Throttle linkl
Cruise control actuator cable end lActuator link)
Brake master cvlinder Dushrod
Clutch master cylinder pushrod
Engine hood hinges and engine hood latch
Batte.v terminals
Fuel fill lid
Hatch hinges or trunk hinges
Door hinges. upper and lowet
Door oDen detent
.Multi-purpose grease
19Rear brake calioersRust-p,eventive agant
20Power steering systemHonda power steering tluid-V
21Air conditioning compressorRetrigerant oit ND-otL8 |PlN 38899-pR7-A01)(For Relrigerant: HFC-134a (R-134a))
-20 0 20 r}() 60 ao loooF
-30 -20 -'to o 10 20 30 40"c
Recolnmendod engine oilEngine oil viscosity torambient tgmpelalure rangos
API CERTIFICATION SEAL

Steering
Special Tools ............. 17-2
Component Location
lndex ................ ...... 17-3
System Description
Ff uid Flow Diagram ......................... 17 -1
Steering Pump ................................. 17-5
Steering Gearbox ............................. 17-7
Troubleshooting
General Troubleshooting ................ 17-10
Noise and Vibration ......................... 17-14
Fluid Leaks ............. 17-16
Inspection and Adiustment
Steoring Operation .......................... 17 -14
Power Assist Check
with Car Parked ........................... 17-18
Steering Linkage and Gearbox ....... 17-19
Pump Beh .............. 17-20
Rack Guide Adjustment ............. ..... 17-21
Ff uid Replacement ...................... ..... 17 -21
Pump Pressure Check .................. .... 17 -22
Ffuid Leakage lnspection ................ 17-23
+ Steering Wheel
Removal ..,,,,,,,........ 17-24
Disassembly/Reassembly ............... 17 -25
fnstallation ,......,,,,,. 17-26
* Steering Column
Removaf .................17-28
Inspection .............. 17-30
Installation ............. 17-31
Power Steering Hoses. Pipes
Replacemont ......... 17-3tl
Power Steering Pump
Removal ................. 17-35
Disassembly .......... 17-35
Reassembly ........... 17-'10
lnstallation ........,..., l7-tltl
Steering Gearbox
Removaf .,.,............. 17-45
Disassembly .......... 17-/E
Reassembly ........... 17-53
lnstallation ............. 17-63
Ball Joint Boot Replacement .......... 17-65
SUPPLEMENTAL RESTRAINT SYSTEM {SRSI
The Integra SRS includes a driver's airbag. located in the steering wheel hub, In addition, all models except the
RS model for Canada have a front passenger's airbag located in the dashboard above the glove box. Information
necessarv to safely service the SRS is included in this Service Manual. ltems marked with an asterisk {') on the
contents page include, or are located near, SRS components. Servicing. disassembling or replacing these items
will require special precautions and tools, and should therefore be done by an authorized Acura dealer.
a To avoid rsndering ths SRS inoporative, which could load to po.sonal iniury 01 d€ath in th€ event ot a ssvare
lrontal collision, all SRS service work muat be performod by an authorizod Acura deal6t.
a lmploper service procodules. including incorloct romoval and installation of the SRS, could lead to personal iniu-
ry caused by unintontional activation ot the airbags.
a All SRS elsctdcal wiring harnesses ara covorod with ysllow insulation. Rolalod compon€nts 8re locatsd in tho
stse ng column, tront console, dashboard, and dashboard lower panel, and in the dashboard above the glove
box. Do not use oloctrical tost equipmoni on thosa cilcuits.
NOTE: The original radio has a coded thett protection circuit. Be sure to get the customer's code number before
- disconnecting the battery.- removing the No. 32 (7.5 A) tuse from the under-hood fuse/relay box.
- removing the radio.
Alter service, reconnect power to the radio and turn it on. When the word "CODE" is displayed' enter the cus-
tomer's 5-digit code to restore radio operation.

System Description
Fluid Flow Diagram
The system is a compact rotary-valvs-type power stssring, connocted to the st€oring gearbox. Th6 fluid pressure is pro-vided by a vane-type pump which is driven by the engine crank pulley. The amount of fluid and pressurs is regulsted bythe flow control valve built into ths pump, The fluid prssaurs from th6 pump is dolivsred to tho valve unit sround the pin-ion of the steering g€arbox. The vslv€ inside the valvs unit controls the hydraulic prossur€ End changos the direction otthe flow. The fluid then flows to the power cylinder, where rack thrust is gen6rat6d. Fluid returning from th6 powsr cylin-der flows back to the .eservoir, where the fluid is 'filtered" and supplied to the pump Egain.
17-4

System Description
Steering Gearbox
The rack-and-pinion type steering gearbox has a valve unit incorporated with the pinion to control the steering fluid pres-
sure. Steering fluid from the pump is regulated by a rotary valve in the valve unit and is sent through the cylinder pipe to
the power cylinder, where hydraulic pressure is applied. The steering fluid in the other side of the power cylinder returns
through the cylinder pipe and valve unit to the reservoir.
VALVE UNIT
CYLINDER PIPE
POWEB CYLINDER
Valve Unit
Inside the valve unit is the valve, which is coaxial with the pinion shaft, and controls the steering fluid pressure. The valve
housing is connected with the fluid pipe from the pump, return pipe to the pump, and the two cylinder pipes from the
respective power cylinder.
The pinion shaft is double - structured with the input shaft connected to the pinion gear, both of which are interconnected
with the torsion bar.
The pin insened in the valve and the pinion shaft groove engage; this allows the pinion shaft to rotate together with the
Because of this construction, the difference in angle in the circumferential direction between the input shaft and the valve
becomes larger according to the torsional strength of the pinion or steering resistance. However, maximum torsion
between the shafts is regulated by the engaged splines of the shafts at the pin engagement section to hold the torsion bar
within the set value.
This allows the steering system to lunction as an ordinary rack-and-pinion type steering if the steering fluid is not pressur-
ized because of a faulty pump.
VALVE
Difforcnco in .ngl. bo{w€cn thainput shalt rnd pinion !h.tt
ln-1
B
lEngag€ with the pinionshaft groove)

17-8
INPUT SHAFT

Pressure Control
Low assist at higher speeds:
When steering resistance is low. such as when driving at high speeds. or when driving straight ahead, the input shaft is
near or in the neutral position, so there is little or no flow to any of the power cylinder orifices, Most of the feed pressure
trom the pump is bypassed to the reservoir. Because of this, the pressure stays the same in both sides of the power cylin-
der, resulting in low or no assist.
vaz =- S\->/-\7/RETURN PASSAGE(To RESERVOIRI
VALVE UNITINPUT SHAFT
High assist at lower speeds:
When steering resistance is high, such as when driving at low speed, or when turning the wheel with the car stopped, the
difference in angle created between the input shaft and the valve opens the fluid passage on one side, and closes the fluid
passage on the other side, at each pair of orifices. The fluid pressure increases in the side of the power cylinder fed by the
larger fluid passage. This increased pressure pushes on the rack piston, allowing the steering wheel to be turned with light
effon. On the other side of the power cylinder, the return passage opens allowing the steering fluid to return through the
input shaft to the reservoir. The fluid passages to the power cylinder automatically change in size, increasing as the steer-
ing resistance 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 passages become smaller and
power assist decreases when the steering effort would normally be low, (for example, when driving at high speeds or
straight ah€ad).
FLUIO PASSAGE TOPOWER CYLINDERFrom PUMP
A
/t-:\
v"
=iJ
RETURNPASSAGE
FLUID PASSAGE FROMPOWER CYLINDER
ALVE F.om PUMP
RESERVOIR

Troubleshooting
General Troubleshooting
Check the following betore you begin:
. Has the susp€nsion been modified in a way that would affect steering?. Are tire sizes and air pressure correct?
. ls the steering whe€l original squipment or equivalent?
. ls the power steering pump belt properly adiusted?
o ls steering fluid reservoir filled to proper level?
o ls the engine idle speed correct and steady?
Normal reliel pressure
I
I
Go to pate tu.l t
r Fluid pro$ure is too low:Chock th€ rgturn circuit pipe and hose between thogearbox and pump tor clogging and dotormation.* Fluid pressure is too hioh:Check the pipe and hosg connected from th6 pumpto tho georbox tor clogging and delormation.
Check pump fluid pressurg (soepage 17-221,Measure steady-state fluid pres-sure while idling with the shut-offvalve fully open.Ir shoutd be 1,500 kPa (15 kgtcm', 213 psi) or bolow.
Normal
Check pump fluid pr€ssur€ {se€page 17-221.Measure pump relief pressurewhile idling with the shut-offvalve fully closod.h should be 6,400 - 7,400 kPa {65- 75 kgtcm,, 924 - 1,067 psi)
Check the flow control valve.* Check lhe valve for smooth movement in thg hou6-Ing.* Chock thg reli€f valve for leaks.
Abnormal
I
I
Faulty flowtontroi valve
17-10

Place the front wheels in the straight ahesd position and
measure the distSnce the steering wheel can be turned
without moving the front wheels.
ROTATIONAL PLAY: 0 - 10 mm l0 - o.:Xl inl
lf the plsy excseds the service limit, psrform rack guide
adjustment (see page 17-211.
lf the play is still excessive after rack guide adjustment,
inspect the stsering linksgo and gearbox as described
on the next page.
ROTANONAL PLAY
Inspection and Adjustment
Steering OperationPower Assist Gheck with
817-1
Gar Parked
1. Check the power steering fluid level (see page 17-
21) and pump belt tension lsee page l7-20).
2.Start the engine, allow it to idle, and turn the steer-
ing wheel from lock-to-lock sev€ral times to warm
uo the fluid.
Attach a spring scale to the steering wheel. With the
engine idling and the car on a clean, dry floor, pull
the scale as shown and read it as soon 8s the tires
begin to turn,
il. The scal6 should read no more than 33 N (3.4 kgf,
7.5 lbf). lf it reads more or less, ch€ck the gearbox
and pump.

NOTE: Perform rack guide adjustment with the wheels
in the straight ahead position.
Loosen the rack guide screw locknut with the spe-
cialtool, then loosen the rack guide screw.
Tighten the rack guide screw until it compresses the
spring and seats against the .ack guide, then loosen
it.
Retighten the rack guide screw to 3.9 N.m {0.4
kgf'm, 2.9 lbf.ft), then back it off to specified angle.
Specified R6turn Angle: 20 t 5"
Tighten the locknut while holding the rack guide
screw.
1.
6.
RACK GUIDE SCREW
25 N.m12.5 kgf.m, 18lbtftl
L(rcKNUT WRENCH, 40 mm07916 - SAs(xtOl
Check for tight or loose steering through the com-
plete turning travel.
Perform following inspections:
. Steering operation (see page 17-18).
. Power assist with car parked.
Check the reservoir at regular intervals. and add fluid as
necessary.
GAUTION: Use only Genuine Honda Power Stosring
Fluid-V. Using othsr fluids such as ATF or other manu-
facturer's power stoering fluid will damags ths systcm,
SYSTEM CAPACITY:
LO6 litor (1.12 US. qt, 0.93 lmp.qtl
at disasssmbly
RESERVOIR CAPACITY:
0.79 lit6r (0.8:l US. qt, 0.70 lmp.qt)
UPPER LEVEL UNE
LOWER LEVEL LINE
,l
Raise the reservoir and disconnect the return hose
that goes to the oil cooler.
Connect a hose of suitable diameter to the discon-
nected return hose and put the hose end in a suit-
able container.
CAUTION: Tako caro not to 3pill tho tluid on tho
body and parts. Wipe off the spilled tluid at onqe.
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,
Refit the return hose on the reservor.
Fill the reservoir to the uDoer level line.
Start the engine and run it at fast idle, then turn the
steering from lock-to-lock several times to bleed air
f.om the system.
Recheck the fluid level and add some if necessary.
CAUTION: Do not lill the roservoir beyond tho
uppgr lovel line.
7.

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 and
pump belt tension,
CAUnON: Dilconn€st the high pros3uro ho3s with cale
!o e3 not to spill tho powor stooring fluid on th6 lramo
lnd olhor parG.
1. Disconnect the outlet hose from the oumo outlet fit-
ting, 8nd install the pump joint adapter on the
pump outlet.
2, Connect the hose joint sdapter to the power steer-
ing pressure gauge, then connect the outlet hose to
the adaotor.
3. Instsll the power steering pressure gauge to the
pump joint adaptor as shown.
OUTLET HOSE FlTnNG
HOSE ATTACHING BOLT1l Nm11.1 kg{ m 8lbf.ftl
6 x 1.0 m.n BOLT{P!rt of tooll11 N.m11.1 kgtm,8lbf.ftl
P/S JOINT ADAPTOR IPUMPIo?NAK - SmolrA
PUMP OUTI.TTFITIING
Open the shut-off valve fully.
Open the pressure control valve fully.
17 -22
1.
Start the engine and let it idle.
Turn the stee.ing wheel from lock-to-lock several
times to warm the fluid to operating temperature.
Measure steady-state fluid pressure while idling
with the shut-off valve fully open. lf the pump is in
good condition, the gauge should read less than
1500 kpa (15 kgf/cm,,213 psi).
lf it reads high, check the feed line or valve body
unit (see General Troubleshooting l7-10).
Close the shut-off valve. then close the pressure
control valve gradually until the pressure gauge
needle is stabl6, Read the pressure.
lmmediately open the shut-off valve fully.
CAUTION: Do not keep the shut-ott valvs closod
moro thgn 5 soconds or th9 pump could b6 dam"
agod by over-h6ating,
lf the pump is in good condition, the gauge should
read at least 6.400 - 7,400 kpa (65 - 75 kgIlcm,,924- 1,067 psi). A low reading means pump output is
too low for full assist. Repair or replace the pump.
10.
P/S PRESSURE GAUGE