1999 HONDA CIVIC piston pin

Steering Gearbox
Reassembly (cont'd)
Valve Body Unit Reassembly
1. Apply vinyl tape to the stepped portion of the pin-
ion shaft, and coat the surface of the vinyl taoe with
the power steering fluid.
2. Install the backup ring ('96 -'97 models) or wavewasher ('98 -'00 models) with its tapered side as
shown below.
3. Coat the inside surface of the new valve oil sealwith power steering fluid.
4. Slide the valve oil seal over the pinion shaft, being
careful not to damage the sealing lip.
Vinyl t.po{Stepped ponion}
Tap6red position.
BACKUPGroove side.
sure the spring isseatod in the oil seal.
'98 - '00 mod.b:
CAUTION: InstEll ihe valve oil seal whh its groov.d
3ide tacing opposite tho boaring.
Apply vinyl tape to the splines and stepped portion
of the shaft, and coat the surface of the vinyl tapewith the power steering fluid.
Fit the new O-ring in the groove of the pinion shaft.Then slide the new valve seal ring over the shaft
and the groove in on the pinion shaft.
Remove the vinyl tape from the pinion shaft,
'96 - '97 models:
lip
7.
VALVE SEAL RIiIGReplace.Do not over-expand.
17-56
8. Apply power steering fluid to the surface of the
valve seal ring that was installed on the pinion
shaft.
9. Apply power steering fluid to the inside of the spe-cial tool. Set the larger diameter end of the specialtool over the valve seal ring.
10. Move the special tool up and down several times tomake the valve seal ring fit in the pinion shaft.11, Remove the soecial tool.
12. Turn the special tool over, and set the smaller diam-eter end of the special tool over the valve seal ring.Move the special tool up and down several times tomake the valve seal ring fit snugly in the pinion
shaft.
PISTON SEAL BINGSIZING TOOL07NAG - SR:togoAol07NAG - SR3|X)00
(g(m
Use the larger diameterend of the specialtool first to makethe valve seal ringfit in the pinionshaft.
Make the valve seal ringfit snugly in the pinionshaft using the other end(smaller diameter end) ofthe specialtool.

)
41.Coat the inside surface of the new cylinder end seal
with power steering fluid.
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'
CAUTION: When installing the cylinder end sesl'
be carelul not damage the sealing face ot the seal
with the threads and burrs at the staked position oI
the cylinder housing.
trCYLINDES END SEAL
Replace.Make sure the sPring
is in the cylincler end seal
CYLINDER END
SEAL
Remove the vinyl tape from the steering rack'
NOTE: Remove any residue oftape adhesive
Hold the steering gearbox using a C-clamp as shown'
GEARBOX
C-CLAMP:
l-,
46.
47.
Coat the inside surface of the cylinder end with
power steering fluid, then installthe cylinder end by
screwing it into the cylinder housang.
Remove the C-clamp from the steering gearbox'
After tightening the cylinder end' stake the point of
the cylinder housing shown below For'98 -'00
models go to step 51.
NOTE: Stake the cylinder in the position opposite
from where the stake was removed during disas-
semoly.
Be careful not to damage
the bushing when inserting
the cylinder end.
49. Select the 32 mm shim(s) ('96 -'97 model only)'
NOTE: Only reinstall the original 32 mm shim(s)
when the steering gearbox is reassembled without
replacing the pinion shatt, 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:
a. 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: 010 mm'
0.15 mm, 0.20 mm, 0.25 mm respectivelyl
CAUTION: Th€ four 32 mm shims do not have
thickness identification marks Measure the thick-
ness of each shim using a micrometsr, and mark
the shim lor identification.
(cont'd)
17-61
Stake point. Depth: 1 0 mm (0.04 in)

)
It
7. Clean the caliper thoroughly; remove any rust, and
check for grooves and cracks.
8. Check the brake disc for damage and cracks.
9. lnstall the pad retainers,
10. Apply grease to the points indicated by the arrows
in the following illustration:
NOTE: Use the pad grease included in the pad set
or Molykote Nl77 grease, and apply a thin coat of
grease evenly to the designated points.
o Piston end and inner Dad contact surface
. Pad and calioer bracket contact surface
. Outer pad and caliper body contact surface
. Outer pad shim and outer pad contact surface
. Outer pad shim and caliper body contact surface
WEAR INDICATOB
INNER PAD
OUTER PAD
1 1. Install the brake pads and pad shim correctly.
. Whon reusing the pads, always reinstall the
brake pads in their original positions to prevont
loss of braking efticiency.
. Contaminated brake discs or pads teduce stop-
ping ability. Keep grease oft the discs and pads'
NOTE: lnstall the Dad with the wear indicator on
the inside.l.t
'12. Push in the piston so that the caliper will fitoverthe
pads, Make sure that the piston boot is in position
to prevent damaging it when pivoting the caliper
down.
Pivot the caliper down into position, then install the
caliper bolt and tighten it.
CAUTION: Be caretul not damage the pin boot
when pivoting the caliper dowr.
lnstall the brake hose bracket on the knuckle
NOTE: Inspect the brake hose for interference or
twisting.
Depress the brake pedal several times to make sure
the brakes work. then test-drive.
NOTE: Engagement of the brake may require a
greater pedal stroke immediately after the brake
pads have been replaced as a set. Several applica-
tions of the brake pedal will restore the normal
Dedal stroke.
After installation. check for leaks at hose and line
joints or connections, and retighten if necessary.
13.
14.
15.
16.
(cont'd)
19-9
CALIPER BOLTN m (3.3 kgf m,2a lbf.ft)

)
lO. Apply grease to the points indicated by the arrows
in the following illustration:
NOTE: Use the pad grease included in the pad set
or Molykote M77 grease, and apply a thin coat of
grease evenly to the designated points.
. Piston end and inner pad contact surface
o Pad and caliper bracket contact surface
. Outer pad and caliper body contact surface
. Outer pad shim and outer pad contact surface
. Outer pad shim and caliper body contact surface
OUTER PAD
OUIERPAD SHIM
I 1. Install the brake pads and pad shim correctly
@o When reusing the pads, always reinstall the
brake pads in their original positions to plevent
loss of braking etticiencY.
. Contaminated brake discs ol pads reduce stop-
ping ability. Keep grease oft the discs and pads.
NOTE: Install the pad with the wear indicator on
the inside.
WEAR INDICATOR
12. Push in the piston so that the caliper will fit over the
pads. Make sure that the piston boot is in position
to prevent damaging it when pivoting the caliper
CALIPER BOLT B26 N.m {2.7 kgt m,
20 rbl.ftl
14.
13.Pivot the caliper down into position, then install
caliper bolt B and tighten it.
lnstallthe brake hose bracket on the knuckle.
NOTE: Inspect the brake hose for interference and
twisting.
Depress the brake pedal several times to make sure
the brakes work, then test-drive
NOTE: Engagement of the brake may require a
greater pedal stroke immediately after the brake
pads have been replaced as a set. Several applica-
tions ot the brake pedal will restore the normal
pedal stroke.
After installation, check for leaks at hose and line
joints and connections, and retighten if necessary.16.
PISTON
19-1 1

Front Brake Caliper
It
Disassembly
NOTE: There are two types of front brake calipers:
The caliper types can be identified by the "5410" or"2056" stamped on the caliper body as shown below.
Check the type of the brake caliper before servicing.
5410 Type:
NOTE: For 2056 type disassembly procedures, see page
19-14.
@o Never use an air hose ot dry brush to clean brakg
assemblies.
. Use an OSHA approved vacuum clganer to avoid
breathing brake dust.
CAUTION:
. Do not spill brake lluid on the vehicls; it may damage
the paint; if brake fluid does conlact the paint, wash
it off immedistely with waier.
. To prevenl spills, covet the hose ioin$ with rags or
shop towels.
. Clean all parts in brake fluid and air dry; blow out all
passages with compressed air.
L Remove the banjo bolt, and disconnect the brake
hose from the caliDer.
CALIPER
BANJO EOLT
SEALINGReplace.BOLTS
Remove the caliper bolts, then remove the caliper
from the bracket.
lJReplace.
3. Remove the caliper pins and pin boots from the
calioer bracket,
CALTPER PIN B CAL|PER BRACKET
CALIPER PIN A
4, lf necessary. apply compressed air to the caliper
fluid inlet to get the piston out. Place a shop rag or
wooden block as shown to cushion the piston when
it is expelled. Use low pressure air in short spurts.
@. Do not place your iingers in tront ol the piston.
. Do not use high air pressure; use 8n OSHA
approved 30 PSI nozzls,
Remove the piston from the caliper, and check the
piston for scoring.
Remove the boot clip, piston boot and piston seal.
CAUTION: Take care not to damage the cylindcr
PISTON SEALReplace.
BOOT CLIPReplace.
\,
,t. (
)PISTON BOOT
CALIPER BODYCheck for scoring
(cont'd)
19-13

Front Brake Caliper
2056 Type:
@
Disassembly (cont'dl
Nevor u3e an air hos€ or dry brush to clgan brake
assomblios.
Use an OSHA approved vacuum cl6aner to avoid
braathing braks duet.
CAUTION:
. Do not spill brakefluid on ths vchicle; it may damage
the paint; if brako fluid does contact the p.int. wash
it olt immediately with wato..
. To prevsnt spills, cover the ho3o ioints whh rag3 or
shop towels.
. Cl€an all parts in brake fluid and air dry; blow out 8ll
passagss with compr63€d air.
1. Remove the banjo bolt, and disconnect the brake
hose from the caliper.
SEALING WASHERS
Remove caliper bolt B, pivot the caliper up out of
the way, then remove the caliper from the bracket.
Remove the guide pin boot from sleeve A on the
caliDer bracket.
GUIDE PIN BOOTReplace.
GALIPER BRACKETCheck tor cracks.
Check for damage.
19-14
4. Remove the pin boot, sleeve B and sleeve boot
from the caliper body.
CALIPER EODYCheck for scoringon cytinder wa .
SLEEV€ BCheck for damage.
lf necessary, apply compressed air to the csliper
fluid inlet to get the piston out. Place a shop rag or
wooden block as shown to cushion the oiston when
it is expelled. Use low pressure air in short spurts,
a
a
Do not placo your lingers in ftont ol tho pkton.
Do noi usa high air prsssure; uso an OSHA
approved 30 PSI nozzle.
Remove the piston from the caliper, and check thepiston for scoring.
WOODEN ALOCK

Front Brake Galiper
Reassembly
5410 Type:
NOTE: For 2056 type reassembly procedures, see page 19-18.
o Never use an air hose or dry brush to clean brako assemblies.. Use an OSHA approved vacuum cleanerto avoid breathing brake dust.. Contaminated brake discs or pads reduce stopping abilhy.. when reusing the pads, always reinstall the brake pads in their original positions to pr€vent loss of braking €fficiency.
CAUTION:
. Do not spill brake fluid on the vehicle; it may damage the paint; if brake fluid do€s contaci the psint, wash it oft imme"diately with water.
. Clean all parts in brake fluid and air dry; blow out all passag€s whh comp.€ssed air.. Betore reassembling, check that all parts are free ol dust and othor toreign particlos.
. Replace parts wilh new ones whenever specified to do so.. Make sure no dirt or other toreign matt€r is allowed to contaminate the brake fluid.. Always use Genuine Honda DOT 3 Brake Fluid. Using a non.Honda brake tluid can cause corrosion and decresse thelife of th€ system.
NOTE:
. Coat the piston, piston seal, and caliper bore with clean brake fluid.. Replace all rubber parts with new ones whenever disassembled.
z_..=-.q8! .9!,H: Use recommended rubber grease in the caliper seal set.
-.61' use recommended seal grease in the catiper seal set.
BRAKE PADSPIN BOOTSReplace.
OUTER PAD SHIM
-o -'''---&@CAI-IPER PIN A -
BLEED SCREWS N.m (0.9 kgt.m, 6.5 tbf.ftl
"k..6
*/\*
car-rpen prr'r e-....,-q\,
-W@{
q
1
PAD RETAINERS
CALIPER BRACKET
WEAB INDICATOR
tilfliltn
tw tfi lJlWEAB rNDrcAroR \J I Ilnsrall inner pad with lAVirs weat indicatot !pwatd/,.
CALIPER BRACKEI MOUNTING BOLT108 N.m {11.0 kgt m,80lbf.ft)
PISTON BOOTReplace.
-6r
/ eoor cr-re
I neptace.
6/vo
PISTON SEALReplace.
19-16
CALIPER BODY

'1.Clean the piston and caliper bore with brake fluid,
and inspect for wear and damage.
Coat the new piston seal with the recommended
rubber grease in the caliper seal set. and install the
seal in the cylinder groove.
Apply the recommended seal grease in the caliper
seal set to the sealing lips and inside of a new pis-
ton boot, and securely install it in the caliper with the
new boot clip.
CAUTION: Be careful nol to damage the caliper
cylinder wall.
PISTON SEALReplace.
--^.,:=-qE!!!-HRUBBER GREASE
Lubricate the caliper and piston with brake fluid,
then install the piston in the cylinder with the dished
end facing in.
IJPISYON BOOTReplace.
j@i
SILICONE GREASE
CALIPER
-6lCALIPEB PIN B
Apply the recommended seal grease in the caliper
seal set to the sliding surface of the pins and the
lnside of the new pin boots.
lnstall the pin boots into the grooves in the caliper
bracket properly.CALIPER ERACKET
7. Insert pin A and pin B into the caliper bracket.
8. Install the pin boots into the grooves in the pans
propeny.
9. Install the brake pads in their original positions (see
page 19-9).
10. Push in the piston so that the caliper will fit over the
pads, and install the caliPer.
11. Tighten the caliper bolts.
12. Connect the brake hose to the caliper with new seal-
ing washers, and tighten the banjo bolt.
-6.lPIN BOOTSReplace.
-6lCALIPER PIN
BANJO EOLT34 N.m (3.5 kg{ m, 25 lbflt}SEALING WASHERSReplace.
'13.
CALIPER BOLT32 N.m 13.3 kgt.rn, 24lblft)
Fill the brake reservoit and bleed the brake system
{see page 19-7).
Perform the following checks:
. Check for leaks at hose and line joints and con-
nections. and retighten if necessary.
. Check for brake hoses for interference and twisting.(cont'd)
14.
19-17