cylinder HONDA CIVIC 1998 6.G Workshop Manual

Rear Drum Brake
Index/lnspection
'1.
a
a
Never use an air hose or dly brush to clean brake assemblies,
Use an OSHA approved vacuum cleanar to avoid breathing brake dust,
Contaminated brake linings or drums reduce stopping ability.
Block the tront wheels before iacking up ths r€ar of lhe vehicle.
Block the front wheels, loosen the rear wheel nuts slightly, support the rear of the vehicle on safety stands, then
remove the rear wheels.
2. Release the parking brake, and remove the rear brake drum.
I N m 10.9 kgtm, 6.5 lbf.ftl
TENSION PIN
10 mm BOLT6,1N m 15.5 kgf m,47 tbf.ft)
WHEEL CYLINDERInspect for leakage.lf necessary, replace as an assembly.
u-cLrPReplace.
WAVEWASHER
PARKING BRAKE LEVERMarked left and right.
Check for weaknessano oamage,
UPPER RETURN SPRING
I
@JPIVOT PIN
BACKING PLATEMarked lelt and right-
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| / tension pin.
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ADJUSTER BOI-TCheck ratchet teethfor wear and damage.LOWER RETURNSPRINGCheck for weaknessand oamage.BRAKE SHOEInspection, see page 19-36lf brake shoes are to bereused, mark and reassemblein same position.
SELF.ADJUSTERLEVEB
SELF-ADJUSTERSPRINGCheck for weaknessano oamage.
BRAKE DRUMInspection, see page '19 36
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19-35

Rear Drum Brake
Inspection
1.
4.
Check the wheel cylinder for leakage.
Check the brake linings for cracking, glazing, wear,
and contamination.
Measure the brake lining thickness.
Brake Lining Thickness:
Standard: 4.0 mm {0.157 in}
Service Limit: 2.0 mm 10.08 in)
NOTE; Measurement does not include brake shoe
thickness.
lf the brake lining thickness is less than the service
limit, replace the brake shoes as a set.
Check the bearings in the hub unit for smooth oper-
ation. lf defective, refer to section 18
WHEEL CYLINDER
LININGS
19-36
6. Measure the inside diameter oJ the brake drum
using the inside vernier calipers.
Drum Inside Diameter:
Standard: 199.9 - 200.0 mm {7.870 - 7.874 in)
Servic€ Limit: 201.0 mm (7.913 inl
lf the inside diameter of the brake drum is more
than the service limit, replace the brake drum.
Check the brake drum for scoring, grooves, and
cracks.
7.
8.
INSIDE VERNIER CALIPERS
BRAKE ORUM

t-
Brake Shoe Disassembly
1. Remove the tension pins by pushing the retainer
springs and turning them.
TENSION PINS
RETAINER SPRINGS
Lower the brake shoe assembly, and remove the
lower return spring.
NOTEi Be careful not to damage the dust cover on
the wheel cylinder.
Remove the brake shoe assembly.
Disconnect the parking brake cable from the parking
brake lever.
Remove the upper return spring, self-adjuster lever,
and self-adjuster spring, and separate the brake
snoe5.
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3.
4.
ADJUSTEB BOLTCheck ratchet teeth forwear ano oamage.
UPPER RETURN SPRINGCheck for weaknessano oamage.
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6. Remove the wave washer, parking brake lever, and
pivot pin from the brake shoe by removing the U-
clrp.
PARKING ERAKEI-EVER
WAVE WASHER
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IU-CLIPReplace.
Brake Shoe Reassembly
1.Apply brake cylinder grease (P/Nr 08733 - B020E) or
equivalent rubber grease to the sliding surface of
the pivot pin, and insert the pin into the brake shoe.
Install the parking brake lever and wave washer on
the pivot pin and secure them with the U-clip,
NOTE: Pinch the U-clip securely to prevent the pivot
pin from coming out of the brake shoe.
,6;::"'
(cont'd)
19-37
LEVER

Rear Drum Brake
Brake Shoe Reassembly {cont'dl
Connect the parking brake cable to the parking
brake lever.
Apply grease on each sliding surface.
!@ contaminated brake linings reduce
stopping ability. Keep grease or oil off the blake lin-
ings. Wipe any excess grease off the parts,
. Apply brake cylinder grease {P/N: 08733 - 8020E)
or equivalent rubber grease to the sliding sur-
faces as shown.
+a Sliding surlace
Apply Molykote 44MA to the brake shoe ends and
opposite edges ofthe shoes as shown.
_' o Opposite edge of the shoe+O Brake shoe ends
19-38
13.
5. Clean the threaded portions of clevises A and B.
Coat the threads of the clevises with grease. To
shoften the clevises, tun the adjuster bolt.
6. Hook the self-adjuster spring to the self-adjuster
lever first, then to the brake shoe
7. Install the clevises and upper return spring. noting
the installation direction.
NOTE: Be careful not to damage the wheel cylinder
dust covers,
8. Install the lower return spring.
9. Install the tension pins and retaining springs.
uppER RETURT{ SpRtNG CLEVIS B
CLEVIS A
Installthe brake drum.
lf the wheel cylinder has been removed, bleed the
brake system (see page 19-7), and check for leaks at
brake line connections, and retighten if necessary.
Depress the brake pedal several times to set the
self-adjusting brake.
Adjust the parking brake (see page 19-6).
't0.
11.
12.
LOWER RETURN SPRING

Brake Hoses/Lines
LJ
Inspection/Torque Specifications
t. Inspect the brake hoses for damage, deterioration, leaks, interference, and twisting.
2. Check the brake lines for damage, rusting. and leakage. Also check for bent brake lines.
3. Check for ieaks at hose and line ioints and connections, and retighten if necessary'
4. Check the master cylinder and ABS modulator unit for damage and leakage
CAUTION: Replace tho brake hose clip whenev€r the brake hose is serviced.
ABS MODULATOR UNIT-Io-BRAKE l-lNE19 N.m (1.9 kgf.m, 14lbl.ftl
PROPOBTIONING CONTROL VALVE.io-BRAKE LINEl5 N.m (1.511 tbf.ftl
MASTER CYLINDER-Io-BMKE LINE
15 N.m (1.5 ksrf.m, 11 lbf'ft)
REAR DISG BRAKE:BRAKE HOSE-to4ALlPER
{BANJO BOLT}34 N.m (3.5 kgtm,25 lbf ftlBLEEO SCREW9 N'm (0.9 kgf.m, 6.5 lM.ftlBRAKE LINE-to-WHEEL CYLINDER15 N.m (1.5 kgl.m, 11 lbf.ftlBLEED SCREW7 N.m {0.7 kst m, 5 lbf,ttl
JBRAKE LINE-io-aRAKE HOSE15 N.m {1.511 tbtft)
BRAKE LINE-Io-BRAKE HOSE15 N.m (1.5 kgt.m, 11 lbf'ft)
(BANJO BOLT}3,1 N.m 13.5 kgf.m, 25 lbf.ft)
J
19-39

Anti-lock Brake System {ABS)
Operation (cont'dl
ABS Modulator
The ABS modulator consists of the inlet solenoid valve, outlet solenoid valve, reservoir, pump, pump motor and thedamping chamber.
The modulator reduces the caliper fluid pressure directly, and it is also referred to as a circulating type because the brake fluidcirculates through the caliper, reservoir and the master cylinder.The hydraulic control has three modes: pressure reducing, pressure retaining, and pressure intensifying.The hydraulic circuit is the independent four channel type, one channel for each wheel.
RF LR
Pressure intensifying mode: Inlet valve open, outlet valve closed
Pressure retaining mode:
Pressure reducing mode:
Motor operation mode:
rN: INLETVALVE {NORMALtY OpENIOUT: OUTIET VALVE {NORMALIY CTOSED)Master cylinder fluid is pumped out to the caliDer.Inlet valve closed, outlet valve closedCaliper fluid is retained by the inlet valve and outlet valve.Inlet valve closed, outlet valve oDenCaliper fluid flows through the outlet valve to the reservoir.When starting the pressure reducing 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 mastercvlinder.
PUMP MOTOR
19-48

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Kickback
1. The motor operates when the ABS is functioning, and the fluid in the reservoir is forced out to the master cylinder
causing kickback at the brake pedal.
2. TheABScontrol unit operates the solenoid valve when the brake pedal is released afterthe initial diagnosis Youmay
hear the faint solenoid valve operation sound at this time. but it is normal.
Pump Motor
1. The pump motor operates when the ABS is functioning
2. The ABS control unit checks the pump motor operation during acceleration. You may hear the faint operation sound
at this time. but it is normal.
Brake Fluid Replacament/Air Blsading
1. Brake fluid replacement and air bleeding procedures are the same as for conventional brakes
Troubleshooting
1. The troubleshooting flowcharts explain the procedures on the assumption that the cause of the problem is still pre-
sent and the ABS indicator light is still on.
Note that troubleshooting following the flowchart when the ABS indicator light does not come on can result in incor-
rect judgment.
2. Ouestion the customer about the conditions when the problem occurred, and try to reproduce the same conditions
for troubleshooting.
self,diagnosis is made at various times such as the initial diagnosis, except ABS control. during ABS control, during
acceleraiion, during the specified vehicle speed, etc. Therefore, the symptom cannot be checked unless the check
conditions match with the problem conditions
3. When the ABS indicator light does not come on during the test drive, but the troubleshooting is performed based on
the DTC, check for the loose connectors. poor contact of the terminals, etc, before troubleshooting.
4. After troubleshooting, erase the DTC and test-drive the car. Be sure that the ABS indicator light does not come on.
5. The connector illustrations show the female connectors with a single outline and the male connectors with a double
ouflrne.
6. The connector terminal cavities containing female terminals are always numbered by looking at the connector from
the wire side. and the cavities containing male terminals are always numbered by looking at the connector from the
terminal side.
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19-55

l}
GLASSReplacement,page 20 6Adiustment,page 20-20GLASS RUNCHANNEL
CENTER LOWERCHANNEL
eCYLINDERPBOTECTORREGULATORReplacement,page 20-6LOCK RODPROTECTOR
STRIKER 'Adjustment, llpage 20-23
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#-l|r&
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/Y LATCHReplacement,20-6
LOCKCYLINOERRETAINERCLIP
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?'2'
ourER HANoLE
ecuLaron
HANOLE
POWER DOORLOCK SwlTCH(driver's only)
Replacement, page 20-5
INNEN HANDLE ROD
LATCHPROIECTOR
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INNERHANDLE
20-3

\:Outer Handle Replacement
NOTE: Raise the glass fully.
'1. Remove:
. Door panel
. Plastic cover (see page 2o-21
2. Pull out the retainer cliP.
6x1.omm Ii.e N.. tr.o rgf.-, I7.2 rbr.fi) ,2
C3.
CYLINDER PROTECTOR
LOCK CYLINDEB
RETAINERCLIP
Remove the bolts, then remove the cylinder protec-
tor, lock cylinder and outer handle.
>: Bolt locaiions,2
CYLINDER
LOCK CYLINDER
CYLINDER ROD
20-5
4. Pull out the outer handle. Pry the outer handle rod
out of its joint using diagonal cutters
NOTE:
a To ease reassembly, note location @ of the outer
handle rod on the joint before disconnecting it.
. Take care not to bend the outer handle rod.
o Use a shop towel to protect the opening in the
ooor.
OUTER HANDLEROD
DIAGONALCUTTERS
SHOPTOWEL
lnstallation is the reverse of the removal procedure
NOTE: Make sure the door locks and opens properly.
BUSHINGReplace.
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5.
i4'

Doors
Latch Replacement
NOTE: Baise the glass fully.
1. Remove:
. Door panel (see page 20-4)
. Plastic cover (see page 20-2). Outer handle (see page 20-5)
Remove the bolt, then move the center lower channel
forwa rd.
Disconnect the connector, and detach the harness
clip from the door. Bemove the latch through the
hole in the door.
NOTE: Take care not to bend the inner handle rod,
outer handle rod, cylinder rod and lock rod.
>: Screw locations, 3
6 x 't.0 mm8 N.m (0.8 kgt m,6 tbf.ftl
4. Installation is the reverse of the removal procedure.
NOTE:
. Make sure the inner handle rod and connector
are connected properly.
. Make sure the door locks and opens properly.
LOCK ROO
20-6
'1.
Glass/Regulator Replacement
Removel
o Door panel (see page 20-4)
. Plastic cover (see page 20-2l,
Carefully move the glass until you can see the bolts,
then remove them. Carefully pull the glass out
through the window slot.
NOTE: Take care not to drop the glass inside the door.
>i Bolt loc.tions,2
fi s'r.o-. iClb9.8 N.m 11.0 kst m,l
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GLASS
REGULATOR