Valve ACURA INTEGRA 1994 Service Repair Manual

7.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 100 kPa
11.0 kgf/cm,, 14.2 psi), replace or repair it as follows.
AIR PRESSURE
i- POWER STEEBINGFLUID or SOLVENT
8, Hold the bottom end of th€ valve with a oDen end
wrencn.
9. Unscrew the seat in the top end of the valve, and
remove any shims, the relief check ball, relief valve
and relief valve spring,
REUEF VALVERELIEF CHECK BALL
sHrM(sllf us€d.SEAT13 N.m11.3 ks[.m, I lbf.tt]
Clampthis end ina vise with sott iaws.
FLOW CONTROL VALVE REUEFvALvESPBING
10. Clean all the parts in solvent, dry them off, then
reassemble and retest the valve. Sge page 17-43 for
f low control valve installation.
NOTE: lf necessary, relief pressure is adiusted at
the facto.y 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,
')4.
nlll
Pump Rotor Removal
CAUTION: Tho pump components are made ot alu-
minum. B€ car6ful not to damage them when servicing.
1. Remove the inlet joint and O-rjng.
13 x 1.9 mmO.RINGReplac€.
2. Remove the pump cover and O-ring.
PUMP COVER
58.5 x 1.5 mmO.RINGFeplace.
(cont'd)
17-37

Power Steering Pump
Reassembly
CAUTION: The power steering componsnts are mado of sluminum. Avoid dsmaging th€ componcnts during assombly,
NOTE:
. Clean the disassembled pans with a solvent and dry them with compressed air. Do not dip the rubber parts in a sofvent.
. Always replace the O-rings and rubber seals with new ones before assembly.. Apply recommended power steering fluid or steering grease (Honda P/N: 08733 - B070E) to the parts indicated in theassemblv procedures.
. Do not allow dust, dirt, or other foreign materials to enter the power steering system.. Replacethe pump asan assembly ifthe parts indicated with asterisk (*) are worn or damaged.
ROLLER5 x 26.8 mm
PUMP covEn /
."'MP cAM RING
, / .",or r*r,
^ / -e^urrae vrues / / sirx1.smm
\Al {ro pratesl I / o_nrNc
dA-h1//EZil*l///'^ee'ace
o-ntNGReplace.
16.8 x 1.9 mm O-RING
\A I {ro Platesl
,h$;@:",n1
i'"otr
/-V#mtt.m,1a|tt.fti// / / \E
RoLLER / |a.5 x ag.a mm / |68.5 x 1.9 mm Io-RING / INLET
Reptace.
I
.PUMP HOUSING
xf:.i'/pp@6{fr;ryDRIVE SHAFTPUMP SEALSPACERROLLER /1.5 x 49.8 mm /68.5 x 1.9 mmO-R|NG / INLET JO-INT
Replace.
I'PUMP ROTOR>ei
iiij:f:,ll-T;-,",,,, ll;il'- g--lblY""."*";
Replace. :
$+--- srntnc
E -5.8x1.9mm
22.r x r.9 mm o-RfNG ------t@-<'t o^::t:\-GReplace.Replace.
FLANGE BOLT'11 N.m 11.1 kg-m,8lb-ftI
17-40
CONTROL VALVE COVEN

Flow Gontrol Valve Installation
1. Apply steering grease (Honda P/N 08733 - B070E) to
new O-rings.
2. Coat the flow control valve with clean power steer-
ing fluid.
3. Install the flow control valve, spring and control
valve cover on the pump housing.
4. Tighten the three control cover bolts.
FLOW CONTROLVALVE
SPRING
E;W
11 N.m {1.1 kgl.m,8lbtftl
2
Pulley Installation
1. Hold the steering pump in a vise with soft jaws.
CAUTION: Be careful not to damago the pump
hou3ing with the laws ol th€ vise.
2. Install the pump pulley as shown. Then install the
pulley nut.
Hold the pulley with the special tool and tighten the
pulley nut.
PULLEY NUT6ir N.m (6.5 kgt.m,47 lbt tt)
Check that the pump turns smoothly by turning the
pulrey.
PULLEY NUT
PULLEY
17-43

Steering Gearbox
Removal
NOTE: Using solvent and a brush, wash any oil and dirt
off the valve body unit, its lines, and the end if the gear-
box. Blow dry with compressed air.
1. Drain the power steering fluid as described on page
17 -21.
2. Rsise the front of car, and support on safety stands
in the propsr locations (see section 1).
3. Remove the front wheels.
il. Removs the st€ering joint cove.,
SIEERING JOIi{T COVEB
Remove the steering joint lower bolt, and move thejoint toward the column.
NOTE: Lock the steering shaft with the ignition key
to retain the steering shaft position.
Remove the cotter pin trom the castle nut and
removo the nut.
Installthe 10 mm hex nut on the balljoint.
Be sure that ths 10 mm hex nut is flush with the ball
ioint pin end, or the threaded section of the ball
ioint pin might be damaged by the ball iointremover.
NOTE: Remove the ball joint using the Ball Joint
Remover, 28 mm {07MAC - 5100200}. Refer to page
l8-11 fot how to use the ball joint rcmover,
Separat€ the tie-rod ball joint and knuckle using the
soscialtool.
CAUTION: Avold d.maging th. blllloint boot.
BALL JOlt{T REMOVER. 28 mm07MAC - SLqt2|X)
Disconnect the shift linkage {MfI model: see section
13, A/[ model see section 14).
Disconnect the heated oxygen sensor (H02S) con-
ngctor, and separate the three way catalytic conver-
ter by removing the s€lf-locking nuts.
NOTE: Always replace the gaskets with new ones.
OXycEt{S€NSOnOONNECTOR SELF.LOCKINGNUT
{cont'd)IHREE WAYCA?ALYTIC CONVERTEN
8.
10.
HEATED
Replacs.
17-45

Steering Gearbox
Removal (cont'dl
Remove the return pipe clamp from the left side of
the rear beam. and move the return piDe above the
steering gearbox.
Remove the rear beam brace.
Remove the left tie-rod end, then slide the rack
the way to the right.
11.
12.
RETURN PIPE CLAMP
13.
I.TFT TIE-ROD END
14. Disconnect the two lines from th€ valve bodv unit
on the steering gea.box.
CAUTION: Aftor dkconnccting tho ho3o and pip.,
plug or r.d thc ho3. rnd pipc whh I pioco of tapo
or .quivll.nt to prcvont torcign m!tori!|3 f.om
ritrdng thc vdv. body unit.
NOTE:
. Place the pipe disconnected in the previous step
at the rear side of the gearbox so that they do
not hinder in the gearbox removal.
. Do not loosen the cylinder pipes A and B be-
tween the valve body unit and cylinder,
RETUR]T HOSE
15. Remove the steering gearbox mounting bolts.
GEARBOX MOU NNG BOLTS
17-46

Remove the cylinder pipe A and B from the gear-
box.
Drain the fluid from the cylinder fittings by moving
the steering rack back and forth,
Remove the two flange bolts, then remove the valve
body unit from the gearbox. {See page 17-51 for
valve body unit disassembly.)
FLANGE BOLT
CYLINDER PIPE B
VALVE BODY UNIT
11.Drill a 3 mm {0.12 in) diameter hole approximately
2.5 - 3.5 mm (0.10 - 0.14 in) in depth in the staked-
point on the cylinder.
NOTE: Do not allow metal shavings to enter the
cylinder housing.
STAKEO POINT
D.prh:2.5 - 3,0 mm 10.10 - 0.12 inl
CYUNDER END
12. Install a puller yoke to the stesring gearbox. Clamp
the puller yoke in a vise with soft iaws as shown,
then loosen and remove the cvlinder end.
PULLER YOKE:Commercirlly AvrilabloSn.p-Ono T/N qrie'-1
oTclo T/N 7372
(cont'd)
17-49

20.Apply vinyl tape to the pinion shaft.
Separate the valve housing from the pinion shafv
valve using a press.
VALVE HOUSING
Vinyl t.p.
Check the inner wall of the valve housing where the
seal ring slides with your finger. lf there is a step in
the wall, the valve housing is worn. Replace the
valve housing.
NOTE:
There may be the sliding marks from the seal
ring on the wall of the valve housing. Replace
the valve housing only the wall is stepped.
When the valve housing is replaced, install new
32 mm shim(s) on the bearing surface of the
housing to adjust the thickness.
21.
22.
23. Check fo. wear. burrs and other damage to the
edges of the grooves in the sleeve.
NOTE: The pinion shaft and sleeve are a precision
matched set. It either the pinion shaft or sleeve
must be replaced, replace the both parts as a set.
SLEEVE SEAL RINGSCh6ck for oeel off oroamag0,
24. Remove the circlip and pinion shaft sleeve from the
oinion shaft.
(cont'd)
17-51

Steering Gearbox
Disassembly (cont'dl
25. Using a cutter or an equivalent tool, cut and remove
the four seal rings from the sl6eve.
CAUTION: Bc clroful not to drmrg. ths .dgc. otthc alcava g1oov6 whan rcmoving the 3cd rings
lnd O.ring.
Using a cutter or an gquivalent tool, cut the valve
seal ring and O-ring Et the groove the pinion shaft.Remove the valv€ saal ring 8nd O-ring,
CAUTION: Br crrltul not to drm.gr thc cdgct ofthc plnion rhdt grooya whcn rcmoving the vllvc
!.!l ring rnd O-ring.
26.
SI-EEVE
Cutting slot position.
17.52
Remova the valve oil seal 8nd backup ring from thepinion shaft.
NOTE:
. Inspect the ball bearing by rotating the outer
race slowly. lf thsre is excessive play, replace thepinion shaft and sleeve as an assembly.. The pinion shaft and sleeve are a precise fiu donot intermix old and new pinion shafts and
steev8s,
28, Press th6 valve oil s€al and roller besring out ofthe
valve housing using a hydraulic press and specialtool shown below.
PILOT COLLARO?GAF - PHTO1OO

Reassembly
NOTE:
. Clean the disassembled parts with a solvent and dry them with compressed air. Do not dip the rubber parts in a sol-
vent.
. Always replace the O-rings and rubber seals with new ones before assembly.
. Apply power steering fluid or steering grease {HONDA P/N: 08733 - 8070E) to the parts indicated in the assembly pro-
cedures.
. Do not allow dust, dirt. or other foreign materials to enter the power steering system.
. Use the appropriate specialtools where necessary.
FLANGC BOLT20 N.m 12.0 kg{.m, lil lbt'ftl
CYLINDER PIPE A26 N'm (2.7 kgf.m, 20 lbf.ftl
VALVE I{OUSING
BOLI..ER BEARINGReplace.
VALVE SEAL RINGReplace.+-cncl|P
RACK GUIDE SCREW
S1IEVE SEAI RINGSReolace.
SITEVE
BACKUP RIM}
VALVE SEAL RINGRaplacs.
O.RINGReplac€.LOCKNUT
CYLINDER HOUSING
O-RINGBACKUP RING Replace.
\
PINION SHAFT
SHIMS
O-RINGReplace.
CYUNDER END SEALReolace.GEAR HOUSING
CYLINDER END SEALReplaco.O.RINGReplace.
I
x nd#$Y
IPISTON SEAL RINGReplace.
STEERING RACK
(cont'd)
17-53

Steering Gearbox
Reassembly lcont'd)
Vllvc Body Rea3sombly
1. Apply vinyl tape to the stepped portion of the pin-
ion shaft, and coat the surface of the vinyl tape with
the power steering tluid,
2. Install the backup ring with its tapered side as
shown below.
3. Coat the inside surface of the new valve oil seal
with power steering fluid.
4. Slide the valve oil seal over the pinion shaft. being
careful not to damage the sealing lip.
CAUTION: ln3tall the valve oil ssal with hs groovad
3ide tacing opposits the besring.
Vinyl trpolst.ppcd ponion,Tapered position.
Groove side.
VALVE OIL SEAL
Fit the new O-ring in the groove of the pinion shaft.
Then slide the new valve seal ring over the shaft
and groove in on the pinion shaft.
Remove the vinyl tape from the pinion shaft.
NOTE: Do not over - expand the valve saal ring.
S€aling
E
lip
PINION SHAFT
VALVE SEAL RING
17-54
7. Apply power steering fluid to the surface of the
valve seal ring that was installed on the pinion
shaft.
8. Apply power steering fluid to the inside of the spe-
cial tool. Set the larger diameter end of the special
tool over the valve seal ring.
9. Move the special tool up and down several times to
make the valve seal ring Jit in the pinion shaft.
10. Remove the special tool.
.11. Turn the special tool over and setthe smallerdiam-
eter end of the special tool over the valve seal ring.
Move the sDecial tool uD and down severai times to
make the valve seal ring snugly fit in the pinion
shaft.
VALVE SEAL RING
(H(ffi
Use the wider diameterend ot the specialtool first to makethe valve seal ringfit in the pinionshaft.
Make the valve seal ringsnugly fit in the.pinionshaft using the other end(smaller diameter end) ofthe specialtool.