1998 HONDA CIVIC ECU

Power Steering Hoses, Lines
Fluid Leakage Inspection
HOSES and LINES
. Inspect hoses for damage, leaks, interference or
twisting.
. Inspect tluid lines for damage, rusting and leakage.
. Inspect for leaks at hose and line joints and connec-
tions.
POWER STEERINGswtTcH12 N.m {1.2 kgt.m,9lbt.ft}
CYLINDER HOUSING-to.CYLINDER LINES28 N.m (2.7 kgf.m, 20 lbf.ft)
VALVE BODY UNIT-to-CYLINDER LINES'17 N.m {1.712 tbl.ftl
VALVE BODY UNIT-Io-FEED/RETURN LINES
Feed line: 14 x '1.5 mm llare nut
37 N.m {3.8 kgJ.m, 27 lbf'tt)
Return Line Joint 16 x 1.5 mm flare nut
28 N m 12.7 kgf.m,20 lbtft)
HOSE CLAMP:
. Position the hose clamps at the points indicated (b) in
the drawing above.
. Slide the hose over the line until it contacts the stop.
8()07Check for leaks.
OUTLET HOSE11 N.m
G€AR8OX and VALVE BODY UNITCheck for leaks at the mating surfaceand flare nut connections,
tbt(Double Ring Typei
CAUTION: Check all clamps for deterioration or delor-
mation; replace with the clamps new ones il necessary.
(1.1 kgf.m,8
PUMP ASSEMBLYCheck for leaks at the pump
seal, inlet and outlet fiftings.
Replacement
NOTE:
. Connect each hose to the corresponding pipe securely
until it contacts the stop on the line. Install the clamp
or adiustable clamp at the specified distance from the
hose end as shown.
. Add the power steering fluid to the specified level on
the reservoir and check for leaks.
ADJUSTABLE HOSE CLAMP:
. Position the adiustable hose clamps at the points
indicated (a) in the drawing above.
. Slide the hose over the line until it contacts the stop.
2.5 - 5.5 mm{0.01 - 0.22 in)2.0 - 4.0 mm(0.08 - 0.16 in)
2.5 - 5.5 mm(0.01- 0.22 in)1.,
17-39

Power Steering Pump
RemovaUlnstallation
NOTE: Eefore disconnecting the hoses from the pump,
Dlace a suitable container under the vehicle.
1. Remove the belt by loosening the pump mounting
bolts and adjusting bolt ('99 -'00 models: 81642
Engine Type only).
OUTLET LINE11 N.m {1.1 kgf'm,8
L
PUMP MOUNTING BOLT24 N.m (2.4 kgl.m, 17 lbf ft)
2. Cover the Ay'C compressor with several shop towels
to protect it from spilled power steering fluid.
3. Disconnect the inlet hose and the outlet line from
the pump, and plug them.
NOTE: Take care not to spill the fluid on the body
or parts, Wipe off any spilled fluid at once.
4. Remove the pump mounting bolts and adjusting
bolt ('99 -'00 models: 816A2 Engine Type only),
then remove the pump.
NOTE:
. Do not turn the steering wheel with the pump
removeo.
. Wrap the opening of the pump with a piece of
tape to prevent foreign material from entering
the pump.
17-40
1.
8.
Connect the inlet hose and the outlet line. Tiqhten
the pump fittings securely.
Loosely install the pump in the pump bracket with
mounting bolts and adjusting bolt ('99 -'00 models:
81642 Engine Type only).
Installthe pump belt.
CAUTION:
. Make sure that the power steering belt is prop-
orly positioned on the pulleys.
. Do not get power stoering tluid or grease in the
power steering bsh or pulley faces. Clean off any
fluid or grease before installrtion.
Adjust the pump belt (see page 17-32).
Fill the reservoir to the upper level line (see page

I
5, Submerge the valve in a container of power steer-
ing fluid or solvent. and blow in the hose. lf air bub-
bles leak through the valve at less than 98 kPa
(1.0 kgf/cm', 14.2 psi), repair it as follows.
, AIR PRESSURE
?
i-- POWER STEERTNGFLUID or SOLVENT
Hold the bottom end of the valve with a open end
wrench.
Unscrew the seat in the top end of the valve. and
remove any shims, the relief check ball. relief valve
and relief valve spring.
7.
l./
RELIEF CHECK BALL
1.,
SEAT9 N.m
{0.9 kgf'm, 6.5 lbt'ftl
RELIEF VALVESPRING
Clamp this end ina open end wrench,
8. Clean all the parts in solvent, dry them off, then
reassemble and retest the valve. lf the flow control
valve tests OK, reinstall it in the pump. lf the flow
control valve still leaks air, replace the pump as an
assembly. The flow control valve is not available
separatelY.
NOTE: 11 necessary, relief pressure is adjusted at
the factorv by adding shims under the check ball
seat. lf you found shims in your valve, be sure you
reinstall as many as You took out.
RELIEF VALVE
{W-*"'
FLOW CONTROL VALVE
17-43
Ball Bearing:
1. Inspect the ball bearing by rotating the outer race
slowly. lf any play or roughness is felt, replace the
ball bearing.
Remove and discard the ball bearing using a press
as snown.
Installthe new ball bearing using a press as shown.
Ball Boaring Rsplaccmont:
lnstallwith thered shielded sidefacing down.
NOTE: Support the inner race
with the tool securely.
BALL BEARING
Prcrt

t
t5.
16.
14. Assemble a 12 x 1.25 mm flange nut onto a 12 x 175
mm grade 10 flange bolt as shown.
NOTE: Wrap the tlange portion of the bolt with
vinyl tape to protect the cylinder.
12,mm FLANGE
BOLT12 mm FLANGE NUTVINYL TAPG {p/N 90i77 - SLo - 000}
Install the flange bolt into the end of the steering
rack until it bottoms in the hole, then back the
flange bolt out 'll4 turn. Hold the flange bolt, and
tighten the flange nut against the rack by hand.
Install the bearing separator on the gearbox housing
a5 snown.
FLANGE BOLT
BEARING SEPARATOR0 - 1112" I
lCommercially availablo)
STEERING RACK
CYLINDER END SEAL
Set the gearbox in a press so the gear housing point
upward, then press the cylinder end seal and steer-
ing rack out of the gearbox
NOTE: Hold the steering rack to keep it from falling
when pressed clear.
CAUTION:
. Be carsful not damage to inn6l surface ot the
cylinder housing with the flange bolt.
. Do not place your lingers under th€ ste€ring
rack.
t./
17.
12 x 175 mm Ptess
1.,
the spe-
srcle.
securely
Replace. J__--'- ,----)t'| ,-----'" ,-,-'-'| fiN ----'
| .Wl'----
I
t
-'4a
| ^--.'--4
A ooY----- \
Q) * srerhtnc nact
20. lnsert a 24" long,3E" drive extension and
cial tool into the cylinder from the gearbox
NOTE: Make sure that the special tool is
positioned on the backup ring edges'
18, Remove the 12 mm bolt and nut from the steering
rack,
19. Remove the cylinder end seal from the steering
racK.
CYLINDER HOUSING
CAUTION: Be caroful not damago to inner surfaco
of the cylinder housing with the specisl tool'
21. Set the gearbox in a press, then press out the cYlin-
der end seal and backup ring from the gearbox,
GAUTION:
. Keep the tool sttaight to avoid damaging the cylin'
der wall. Check th€ tool angls, and corr€st it if nec-
€ssary, whon rsmoving the cylinder snd seal.
. Uss a pross to removs tho cylinder end seal. Do
not try to removo ths seal by striking the tool h
will br€ak the backup ring. and the cylinder snd
s€al will lemain in tho gearbox.
BACKUP RING
CYLINDER END SEAL
CYLINDER END SEALREMOVER ATTACHMENT07NAD - SR3020A
(cont'd)
17-51
Pross

I
14.
Apply power steering fluid to the surface of the spe-
cial tool. Set the new seal rings over the special tool
from the smaller diameter end of the tool, and
expand the seal rings. Do two rings at a time from
each end of the sleeve.
NOTE;
. Do not over-expand the seal ring. Installthe resin
seal rings with care so as not to damage them'
After installation, be sure to contract the seal
rings using the specialtool (sizing tool).
. There are two types of sleeve seal rings: black
and brown. Do not mix the different types of
sleeve seal rings as they are not compatible
Set the special tool in the grooves in the sleeve, and
set each ring in each groove securely.
NOTE: After installation, compress the seal rings
with your fingers temPorarilY
BALL JOINT BOOI CLIP GUIDE
07S7,1- SA50800
SLEEVE
15. Apply power steering fluid to the seal rings on the
sleeve, and to the entire inside surface of the spe-
cial tool.
16. lnsert the sleeve into the specialtool slowly'
17. Move the sleeve each direction several times to
make the seal rings snugly fit in the sleeve'
NOTE: Be surerings are not turned uP.
SITEVE SEAL RINGSIZING TOOL0797a - SA5020A or07974 - SA50200
that the seal
fr
J
17-57
18. Apply power steering fluid to the surface o{ the pin-
ion shaft. Assemble the sleeve over the pinion shaft
by aligning the locating pin on the inside of the
sleeve with the cutout in the shaft. Then install the
new circlip securely in the pinion shaft groove'
NOTE:
Be careful not to damage the valve seal ring
when inserting the sleeve.
Installthe circlip with its radiused side toward the
sleeve.
Apply power steering fluid to the seal ring lip of the
valve oil seal. then install the seal in the valve hous-
ing using a hydraulic press and special tools as
shown.
CAUTION: Install the valve oil seal with its grooved
side facing the tool.
'19.
ATTACHMENT.32x35mm0774.6 - q)101(x)Pre3s
IDRIVER07749 - 0010000
VALVE OIL SEALReplace.Make sure thespring is in the
oil seal. (cont'd)

)
55. Installthe cylinder lines A and B.
NOTE:
. Clean the joints of the cylinder lines A and B
thoroughly. The joints must be free of foreign
materlal.
. Install the cylinder lines A and B by tighting the
flare nuts by hand first, then tighten the flare
nuts to the specified torque.
56.
57.
Grease the sliding surface of the rack guide, and
install it onto the gear housing
36 - '97 models:
Apply a thin coat of grease to the new O-ring, and
install it on the rack guide screw.
38 - '00 models:
Remove the old sealant off of the threaded section,
then apply new sealant all around the threads
Install the spring, rack guide screw and locknut on
the gear housing.
Adjust the rack guide screw (see page 17-33)'
NOTE: After adjusting, check that the rack moves
smoothly by sliding the rack right and left'
'1 l:.r1
58.
-GlO.BINGReplace.
17 N.m {1.7 kgt'm, 12 lbl.ft)
28 N.m (2.7 kgf m,20 lbf ftl
CYLINDER LINE 8 CYLINDER LINE A
l/LOCKNUTS
60, lnstall the new lockwasher in the groove in the
steering rack.
61. Screw each rack ends into the rack'
62. Hold the steering rack with a wrench ('98 -'00 mod-
els: left end onlY), and tighten the rack ends'
CAUTION: Bo cateful nol to damage ihe rack sur-
face with the wranch.
NOTE: '96 -'97 model is shown.
STEERING RACK END
54 N'm t5 5 kgt m' 40 lbl'ft)
STEERING RACK
After tightening the rack ends, stake the four sec-
tions of lock washer with a drift and a mallet.
Place the wood block on the press table. then set
the lock washer section of the rack end on the
wood block securelY.
Be sure the tool is aligned with the flst sections
of the steering rack end belore pressing.
Stake the lock washer in the center ot the flat
section of the steering rack end.
LOCK WASHER
NOTE: This drift has a flat,
to prevent puncturing
WOODEN BLOCK
{cont'd}
17-63

Steering Gearbox
Installation (cont'dl
5. Install the stiffener plate with the two gearbox
mounting bolts and stiffener plate aftaching bolts.
CAUTION: Be sure the air tube is not caught orpinched by stiffener plate,
NOTE: Install the bolts loosely first, then tighten
them securely.
7.
8.
6.Install the return hose joint by tightening the l6 mm
flare nut.
Connect the relurn hose securely, and tighten the
adjustable hose clamp from the engine compart-ment.
Connect the feed line and tighten the 14 mm flare
nut.
NOTE: Make sure that there is no interference
between the fluid lines, the rear beam or any otherparts.
ADJUSTABLE HOSECLAMP(see page 17-39)
16 mm FLARE NUT28 N.m {2.9 ksl.m. 20 lbf.ft)
RETURN
1a mm FLARE NUT37 N.m (3.8 kg{.m, 27 lbt.ftl
ATTACHING AOLTS38 N.m 13.9 kgf.m, 28 lbf.ftl
MOUNTING BOLTS(} N.m (4.a kgt m, 32 lbf.ftl
17-66
9.Center the steering rack within its stroke.
Slip the lower end of the steering joint onto the pin-
ion shaft (line up the bolt hole with the groove
around the shaft), and tighten the upper and lower
steering joint bolt.
NOTE:
. Connect the steering shaft and pinion with the
cable reel and steering rack centered.. Be sure that the lower steering joint bolt is securely
in the groove in the steering gearbox pinion.
. lf the steering wheel and rack are not centered,
reposition the serrations at lower end of the
steering joint.
10.
STEERING JOINTUPPER BOLT22 N.m (2.2 kgf.m,16 tbt.ftl
PINION SHAFT
Groove,
STEERING JOINTLOWER BOLT22 N.m (2.2 kgt.m, 16lbtttl
11.Center the cable reel by first rotating it clockwise
until it stops. Then rotate it counterclockwise(approximately two turns) until the arrow mark onthe label points straight up. Reinstall the steeringwheel (see page 17 35).

Ball joint Boot Replacement
'96 - '97 models:
1. Remove the boot set ring and the boot.
CAUTION: Do not contaminate the boot installa.tion section with grsase.
2. Pack the interior of the boot and lip with grease.
3. Wipe the grease off the sliding surface of the ballpin, then pack the lower area with fresh grease.
CAUTION:
. Keep grease off the boot installation seciion andthe tapered s€ction ot the ball pin.
. Do not allow dust, dirt, or oth6r foreign materi-
als to 6nt8r the boot.
LIPEALL PIN TAPEREDSECTIONWipe off the grease.
INSTALLATION
SECTIONWipe off the grease.
Install the boot in the groove of the boot installation
section securely, then bleed the air from the boot.
-6lrBOOTSECTIONWipe off the grease
4.
ADJUSTING BOLTAdjust the depthby turning the bolt.
SET RING
Adjust the special tool with the adjusting bolt untilthe end of the tool aligns with the groove on theboot. Slide the set ring over the tool and into posi-
UOn.
CAUTION: After installing the boot, qhsck the ballpin tapered section for grease contamination andwipe it it necGsary.
17-68
'98 - '00 models:
CAUTION: Do not contaminato the boot installation sec-tion with grease.
1. Remove the boot from the tie-rod end, and wiDe theold grease off the ball pin.
2. Pack the lower area ofthe ball pin with fresh grease.
3. Pack the interior of the new boot and liD with freshgrease.
CAUTION:
. Keop groasc ott tho boot installalion sestion andth. iapored s.ction if th€ ball pin.
. Do not allow dust. dirt, or other foreign materials
to entor tho boot.
BOOT INSTALLASECTIONWipe off the gr€ase,
Install the new boot using the special tool as shownbelow.
NOTE: The boot must not be a gap atthe boot installation sections.
LtP .6r
J_/
ru
CAUTION: Aftor installing the boot, chock the batlpin tapgred section tor grgase cortamination. andwipe it it n€ces3ary.
FRONT HUBDIS/ASSEMBLY TOOL07965 - SA5o500