Valve HONDA CR-V 1999 RD1-RD3 / 1.G Workshop Manual

20. Press the new bearing into the valve housing with
the stamped letter facing up using a hydraulic press
and soecialtool.
ATTACHMENT,32x35mm07746 - 0010100
- ROLLER BEARINGLetter stamped face
21. Apply vinyl tape to the pinion shaft, then coat the
vinyltape with power steering fluid.
Sealing lip tace.VALVE OIL SEAL
VALVE HOUSING
SHAFT
SLEEVE SEAL
PINION
E
22, Insert the pinion shaft into the valve housing. Be
careful not to damage the valve seal rings.
23. Remove the vinyl tape from the pinion shaft, then
remove any residue from the tape adhesive.
8e sure that theseal rings are notturned up, theninstall.
DRIVER
24. Press the pinion shaft/sleeve using a hydraulic
press. Check that the pinion shaft/sleeve turns
smoothly by turning the pinion shaft,
(cont'd)
17-43
www.emanualpro.com

Power Steering Gearbox
Reassembly (cont'dl
4l. Coat the inside surface of the new cvlinder end seal
with power steering fluid.
CYLINDEB ENO SEALReplace.Make sure the springis in the cylinder end seal.
43.
Stakedposrtron.
Grooved side.
42. Install the cylinder end seal onto the steering rack
with its grooved side toward the piston.
Push in the cylinder end seal with your finger.
When installing the cylinder end seal, be careful not
damage the sealing face of the seal with the threads
and burrs at the staked position of the cylinder
housing.
Remove the vinyl tape from the steering rack, then
remove any residue from the tape adhesive.
Hold the gearbox using a C-clamp as shown.
GEARBOX
44.
45.
C.CLAMP
17-46
46.Grease the inside surtace of the cylinder end, then
install the cylinder end by screwing it into the cylin-
der.
Remove the C-clamp from the gearbox.
After tightening the cylinder end, stake the point of
the cylinder shown below. Stake the cylinder in the
position opposite from where the stake was removed
during disassembly,
NOTE: For '98 - 00 models, go to step 54.
41.
48.
BUSHING
-tGCYLINDER END69 N.m (7.0 kgf.m,51 lbtft)8e careful not to damagethe bushing when insertingthe cylinder end.
49. Select the 32 mm shim(s) ('97 model onlv).
NOTE: Only reinstall the original 32 mm shim(s)
when the steering gearbox is reassembled without
replacing the pinion shaft. valve housing, and gear-
box housing with new ones.
lf the pinion shaft, valve housing, and gearbox
housing are replaced, select the new shim{s) as fol-
lows.
Shim selection:
Set the four 32 mm shims on the bearing surface of the
gearbox housing. Total thickness of the four shims
should equal no more than 0.70 mm.
Shim set: four 32 mm shims (Thickness: 0.10 mm, 0.15
mm, 0.20 mm, 0.25 mm respectively)
NOTE: The four 32 mm shims do not have thickness
identification marks. Measure the thickness of each shim
using a micrometer, and mark the shim for identification.
Stake point, Depth: 1,0 mm (0.04 inl
4.0 mm {0.16 in)
www.emanualpro.com

50. Install the valve body unit on the gearbox. and
tighten the flange bolts to the specified torque.
VALVE BODYFLANGE BOLT20 N.m 12.0 kgt.m, 14lbtft)
ct.
SHIM SET(four shims)
Measure the clearance between the gearbox and
valve body unit using a feeler gauge. Measure the
clearance at the poinl midway between the two
mounting bolts.
GAUGE
Determine the required thickness of the 32 mm
shims by subtracting the clearance obtained in the
step "c" from the total thickness of the four shims.
(Total thickness of the 4 shims) - (Clearance) =
Reouired thickness of the shims
Select the shims so that the total thickness is close
to, but less than, the required thickness.
Example:
Measurement is 0.28 mm (0.011 in);
0.70-0.28=0.42 mm (0.028-0.011 = 0.017 in)
The selected shims should be 0,25 mm (0.010 inl and
0.15 mm (0.006 in) in thickness.
lf the required shim thickness is 0.10 mm or less, no
shrms are necessary.
53. Set the selected 32 mm shims on the bearing sur-
face of the gearbox housing.
VALVE BODY UNITla lbl.frl
Coat the new O-ring with grease, and carefully fit it
on the valve housing.
Apply grease to the needle bearing in the gearbox
housing.
Install the valve body unit on the gearbox housing
by engaging the gears. Note the valve body unit
installation position (direction of line connection).
Tighten the flange bolts to the specified torque.
(cont'd)
FLANGE BOLT20 N.m (2.0 kgf.m,
/a)E?
E
O.RINGReplace.
-6{
NEEDLE BEARING
-6lr
54.
56.
57.
17-47
www.emanualpro.com

Power Steering Gearbox
Reassembly (cont'd)
74. Connect the air tube between the right and left
boot,
CYLINDERLINE A
75. Install the clips on the cylinder lines, then clamp theair tube with the clips.
76. Apply vinyl tape to around the pinion shaft, andcoat the surface of the tape with grease.
DUST COVER
Vinyl Tsp€
VALVE OIL SEAL
VALVE BODY UNIT
Pack the interior of the dust cover and lio withgrease, then install dust cover on the valve bodv unit.
Remove the vinyl tape f.om the pinion shaft.
77.
CYLINDER LINE
17-50
SET RING
't.
Ball Joint Boot Replacement
Remove the boot set ring and the boot.
CAUTION: Do not contaminate the boot inslalla-
tion section with graase.
Pack the interior of the boot and lip with grease.
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 section and
the tapered section of th€ ball pin.
. Do not allow dust, dirt, or other to.eign materi-
als to enter the boot.
EALL PIN TAPEREDSECTIONWipe olf the grease.
BOOT INSTALLATIONSECTIONWipe offthe grease.
B(X)T IT{STALLATIONsEclroNWipe off the grease.
ADJUSTING BOLTAdiust the depthby turning the bolt.
Install the boot in the groove of the boot installation
section securely. then bleed air.
Adjust the special tool with the adjusting bott untilthe end of the tool aligns with the groove on theboot. Slide the set ring over the tool and into posi-
I|on.
CAUTION: After installing the boot, chock the batlpin lapered section for grease contamination andwipe it it n€cessary.
www.emanualpro.com

Master Cylinder/Brake Booster
Removal/lnstallation
1, Disconnect the brake fluid level switch connectors.
2. Remove the reservoir cap from the master cylinder.
3. Remove the brake fluid from the master cvlinder
reservoir with a syringe.
4. Disconnect the brake lines from the master cylinder.
To prevent spills, cover the line joints with rags or
shop towels.
5. Remove the master cylinder mounting nuts and
wasners.
6. Remove the master cylinder from the brake booster.
CAUTION: Be careful not to bend or damage the
brake lines when removing the master cylinder.
Do not spill brake fluid on the vehicle; it may dam.
age the paint; it brake fluid does cont.ct the paint,
wash it oft immediately with water.
7. Disconnect the vacuum hose from the brake booster.
8. Remove the cotter pin and clevis pin from the clevis.
Do not disconnect the clevis by removing it from
the operating rod of the brake booster. lf the clevis
is loosened, adjust the pushrod length before
installing the brake booster (see page 19-15).
To Front Caliper (Without ABS)
\\
15 N.m {1.5 kgtm, vAcuuM HosE
r r rbf.ft) |
/ | BRAKE FLUTD LEvEL
/l /
swrrcHcoNNEcroRs
/ I I I COTTER PIN
I I / neotace
l,/-- ro Rear wheet cylinders / | I
h ./-''' /. I I IYli //*s (.S
I /r:
9. Remove the four booster mounting nuts.'10. Pull the brake booster forward until the clevis is
clear of the bulkhead.
11. Remove the brake booster from the enqine com-
panment.
12. Install the brake booster and master cylinder in the
reverse order of removal, and note these items:
. When connecting the brake lines, make sure that
there is no interference between the brake lines
and other parts.
. Be careful not to bend or damage the brake lines
when installing the master cylinder.
. lf replacing the master cylinder or brake booster,
check and adjust the pushrod clearance before
installing the master cylinder (see page 19-14).
Fill the master cylinder reservoir, and bleed the
brake system (see page 19-7).
After installation, check the brake pedal height and
brake pedal free play (see page 19-5), and adjust if
necessary.
13 N.m 11.3 kg{.m,I rbf.ft)
13.
14.
To Master Cylinder(Without ABS)To Modulator Unit(with ABs)@-\
\
^ To Front Caliper
9i\.
-#qCLEVIS PIN
):-,/
PROPORTIONING CONTROL VALVE
MASTER CYLINDER
15 N.m (1.5 kgf.m, 11 lbl.ftl
BRAXE BOOSTER
www.emanualpro.com

6.
7.
8.
lf the clearance between the gauge body and
adjusting nut is 0.4 mm (0.02 in), the pushrod-to-
piston clearance is 0 mm. However. if the clearance
between the gauge body and adjusting nut is 0 mm,
the pushrod-to-piston clearance is 0.4 mm (0.02 in)
or more. Therefore it must be adjusted and
recheck€d.
lf clearance is incorrect, loosen the star locknut, and
turn the adjuster in or out to adjust.
. Adjust the clearance while the specified vacuum
is applied to the booster.
. Hold the clevis while adjusting.
Tighten the star locknut securely.
Remove the special tool.
0 - 0.4 mm (0 - 0.02 inl
Adjust the pushrod length as shown if the
is removed,
booster
11610.5 mm{4.6 t 0.02 inl
PUSHRODLOCKNUT1.5N.m 11.5 kgf.m. '11 lbtfl)
Install the master cylinder (see page 19-13).
9.
STAR LOCKNUT22 N.m12.2 kgt m. 16 lbtftl
10.
(Check valve is built-in)
Brake Booster Inspection
FunctionalTest
1. With the engine stopped, press the brake pedal sev-
eral times to deplete the vacuum reservoir. thenpress the pedal hard, and hold it for 15 seconds. lf
the pedal sinks, either the master cylinder is
bypassing internally, or the brake system (master
cylinder, lines, modulator, proportioning valve. or
caliper) is leaking.
2. Start the engine with the pedal pressed. lf the pedal
sinks slightly. the vacuum booster is operating nor-
mally. lf the pedal height does not vary, the booster
or check valve is faultv.
3. With the engine running, press the brake pedal light-
ly. Apply just enough pressure to hold back auto-
matic transmission creep. lf the brake pedal sinks
more than 10 mm (3/8 in.) in three minutes, the mas-
ter cylinder is faulty. A slight change in pedal height
when the Ay'C compressor cycles on and off is nor-
mal. (The Ay'C compressor load changes the vacuum
available to the booster.)
Leak Test
1.Press the brake pedal with the engine running, then
stop the engine. lf the pedal height does not vary
while pressed for 30 seconds, the vacuum booster is
OK. lf the pedal rises, the booster is faulty.
With the engine stopped, press the brake pedal sev-
eral times using normal pressure. When the pedal is
first pressed. it should be low, On consecutive appli-
cations, the pedal height should gradually rise. lf thepedal position does not vary. check the booster
check valve.
Boostor Chock Valve Test
1. Disconnect the brake booster vacuum hose at the
booster.
2. Start the engine, and let it idle. There should be vac-
uum. lf no vacuum is available, the check valve is
not working properly. Replace the brake booster
vacuum hose and check valve. and retest.
ERAKE BOOSTERVACUUM HOSE
www.emanualpro.com

Brake Hoses/Lines
Inspection/Torque Specif ications
1. Inspect the brake hoses for damage, deterioration, leaks, interference, and twisting
2. Check the brake Iines for damage, rusting, and leakage. Also check for bent brake lines.
3. Check for leaks at hose and line joints and connections, and retighten if necessary.
4. Checkthe master cylinder, proportioning control valve. and ABS modulator unit for damage and leakage.
NOTE: Replace the brake hose clip whenever the brake hose is serviced.
MASTER CYLINOER.Io.BRAKE LINE15 N.m 11.5 kgt m, 11 lbnftl
PROPORTIONING CONTROL VALVE.Io-BRAKE LINE15 N.m (1.5 kgf.m. 11 lbl.ftl
BRAKE LINE-Io-BRAKE HOSE15 N.m 11.5 kgd.m, 11 lbf'ft)
CYLINDER15 N.m 11.5 kgf.m, 11 lbf.ft)BLEED SCREW7 N.m 10.7 kgf.m, 5 lbt.fttBRAKE HOSE-to-CALIPER{8ANJO BOLTI34 N.m (3.5 kgf.m,25 lbf.ftlBLEED SCREW9 N.m 10.9 kgf.m, 6.5 lbf.ftlwith ABS:
19-21
www.emanualpro.com

ABS Control
The ABS control unit detects the wheel speed based on the wheel sensor signal it received, then it calculates the vehicle
speed based on the detected wheel speed. The control unit detects the vehicle speed during deceleration based on the
rate of deceleration.
The ABS control unit calculates the slip rate of each wheel, and it transmits the control signal to the modulator unit
solenoid valve when the slip rate is high
The pressure reduction control has three modes: pressure reducing, pressure retaining, and pressure intensi{ying modes.
Self-diagnosis Function
The ABS control unit is equipped with a main cPU and a sub cPU, that check each other for problems.
The CPUs check the circuit of the system.
When the CPUS detect failure, they shift to the "system down mode" or the "control inhibition mode".
The self-diagnosis can be classitied into these four categories:
O: Initial diagnosis
O: Except ABS control
O; During ABS control
@: During warning
On-board Diagnosis Function
The ABS system can be diagnosed with the Honda PGM Tester.
The ALB Checker cannot be used with this system. For air bleeding. and checking wheel sensor signals, use the Honda
PGIM Tester. See the Honda PGM Tester user's manuals for specific operating instructions.
(cont'd)
19-29
ABS CONTROL I-INIT
MODEABSINDICATOR LIGHTMAIN
RE LAY
SOLENOID
VALVERestan conditionDTC
SYSTEM
DOWNONNo
operatron
Drive
inhibitionOperation*rlgnition
switchOFF - oN (ll)Memory
CONTROL
INHIBITIONONNo
operaton
Drive
inhibitionOperationAutomaticlVemory
*1: Except CPU failure
www.emanualpro.com

Anti-lock Brake System (ABS)
Features/Gonstruction (cont'd)
ABS Modulator
The ABS modulator consists of the inlet solenoid valve, outlet solenoid valve, reservoir, pump, pump motor and thedampjng chamber.
The modulator reduces the caliper fluid pressure directly. lt is a circulating-type modulator because the brake fluid circulatesthrough the caliper, reservoir and the master cylinder.The hydraulic control has three modes: pressure reduction, pressure retaining and pressure intensifying modes.The hydraulic circuit is the independent four channel-type, one channel for each wheel.
SOLENOID VALVE
t-
Pressure intensifying mode: Inlet valve open, outlet valve closed,
Pressure retaining mode:
Pressure reduction mode:
Motor operation mode:
Master cylinder fluid is pumped out to the caliper.Inlet valve closed, outlet valve closed.
Caliper fluid is retained by the inlet valve and outlet valve.Inlet valve closed, outlet valve ooen
Caliper fluid flows through the outlet valve to the reservoir.When starting the pressure reduction mode. the pump motor is ON.When stopping ABS operation, the pump motor is OFF.The reservoir fluid is pumped out by the pump, through the damping chamber, to the mastercylinder.
PUMP MOTOR
19-30
www.emanualpro.com

Wheel Sensor
The wheel sensors are the magnetic contactless type. As the gear pulser teeth rotate past the wheel sensor's magnetic
coil, AC current is generated. The AC frequency changes in accordance with the wheel speed. The ABS control unit detects
the wheel sensor signal frequency and thereby detects the wheel speed
at LOW SPEED
wheel Sp€od and Modulatot Control
VEHICLE SPEED
VEHICLE SPEED
WHEEL SPEED
PRESSU
OUTLETVALVE ON
OFF
INLETVALVE ON
OFF
MOTOR
ON
OFF
When the wheel speed drops sharply below the vehicle speed, the outlet valve opens momentarily to reduce the caliper
fluid pressure. The pump motor starts at this time. As the wheel speed is restored. the inlet valve opens momentarily to
increase the caliDer fluid oressure.
F
GEAR PULSER
19-31
www.emanualpro.com