1997 HONDA CIVIC manufacturer

Emission Gontrol System
System Description
The emission control system includes a Three Way Cata-lytic Convener (TWC), Exhaust Gas Recirculation (EGR)
system,. Positive Crankcase Ventilation (pCV) system andEvaporative Emission (EVAP) Control system. The emis-sion control system is designed to meet federal and stateemission standards.*: D16Y5 engine
Tailpipe Emission
Inspestion
@@ Do not smoke during ihis procedure. Keepany open flame away from your work area.
1. Start the engine. Hold the engine at 3,000 rpm withno load (in Park or neutral) until the radiator fancomes on. then let it idle.
2. Connect a tachometer.
Check and, if necessary, adjust the idle speed (see
page 11-220 - 223).
Warm up and calibrate the CO meter according to themeter manufacturer's instructions.
Check idle CO with the headlights, heater blower,rear window defogger, cooling fan, and air condition-er off.
NOTE: (Canada) Pull the parking brake lever up.Start the engine, then check that the headlights areoff.
CO mete. should indicate 0.1% maximum.
NOTE: '98 Dl6Y5 engine - lf the idle speed incress-es to 8101 50 rpm, this means the EVAp system ispurging the canister. To stop the purging temporari-ly. raise the engine speed above 1,000 rpm with theaccelerator pedal, then slowly release the pedal.
11-252
eFORWARD -
Three Way Catalytic Converter
(TWCI
Doscription
The Three Way Catalytic Converter (TWC) is used toconven hydrocarbons (HC), carbon monoxide (CO), andoxides of nitrogen (NOx) in the exhaust gas to carbondioxide (COr), dinitrogen (N,) and water vapor.
D15Y5, D16
, engine:
'99 - 00 D16Y8, 81642 engine:
ENGINE SIDE
t

Inspection and Adjustment
Pump Belt
NOTE: When using a new belt, first adjust the deflection
or tension to the values for the new belt, then readjust
the deflection or tension to the values for the used beltafter running engine for five minutes.
Inspection
Attach the special tool to the belt and measure the ten-sion of the belt.
Tension:'99 -'00 mod€ls: B1642 Engin. Type onlyUsed Bsh: 390 - 540 N lao - 55 kgt.88 - 120 tbf)New Belt:740 - 880 N {75 - 90 kgf, 170 - 200 tbt}'96 - '00 models: Other Engine Types
Used Beh: 340 - 490 N (35 - 50 kgf, 77 - ilO tbflNew Belt:640 - 780 N 165 - 80 ksf, 1& - 176 tbf)NOTE:
. lf there are cracks or any damage evident on the belt,reDlace it with a new one.. Follow the manufacturer's instructions for the tensiongauge.
BELT TENSION GAUGE07JGG _ 001010A
Inspect the pump belt for cracks or any damage.Replace the belt with a new one if necessary.
Measuremont without Beh Tension Gauga:
Apply a force of 98 N (10 kgt,22 lbfl and measure thedeflection between the power steering pump and thecrankshaft pulleys.
Dsflectior:'99 -'00 model3: 816A2 Engine Typ€ ontyUsed Beh: 7.5 - 11.0 mm t0.30 - 0.43 inlNew Beh:5.0 - 7.0 mm (0.20 - 0.28 in)'96 - '00 models: Othor Engine Typos
Used Behi 10.5 - 14.0 mm (0.ial - 0.59 inlNow Beh:7.5 - 10.0 mm (0.30 - 0.39 inl
POWER STEERING PULUY
CRANKSHAFT PULLEY
17-32
Adiustment
1. Loosen the power steering pump mounting bolts.
2. Adjust the belt tension.
'99 - '00 mod€ls: 816A2 Engin€ Typo only
. Turn the adjusting bolt by hand to get the proper belttension, then retighten the mounting bolts,
ADJUSNNG BOLT
PUMP MOUNNNG BOLTS24 N.m (2.4 kgf'm, 17 tbtftlPOWER STEERINGPUMP
'96 -'00 modek: Othcr Engins Typos
. Pry power steering pump away from the engine witha wrench to get the proper belt tension, then retight-en the mounting bolts.
PUMP MOUNTING BOLT24 N.m (2,4 kgf.m, 17 lbl.ftl
PUMP MOUNTING BOLT24 N.m {2.a kgt m, 17 tbtftl
Start the engine and turn the steering wheel fromlock-to-lock several times, then stop the engine andrecheck the deflection of the belt,

Wheel Alignment
,f,
Caster
NOTE: For proper inspection/adjustment of the wheel
alignment check and adjust the following before check-
ing the alignment.
. Check that the suspension is not modified.
. Check the tire size and tire pressure.
. Check the runout of the wheels and tires.
. Check the suspension ball ioints. {Hold a wheel with
your hands and move it up and down and right and
left to check for wobbling.)
Inspection
NOTE: Use commercia lly-available computerized four
wheel alignment equipment to measure wheel align-
ment {caster. camber, toe, and turning angle). Follow
the equiDment manufacturer's instructions.
Check the caster angle.
Caster angle: 1',10' I 1'
lf out of specification, check for bent or damaged
suspensron components.
2.
1.
18-4
Camber
lnspection
NOTE: Use commercially-available computerized four
wheel alignment equipment to measure wheel align-
ment (caster, camber, toe, and turning angle). Follow
the equipment manufacturer's instructions.
1. Check the camber angle.
Camber angle:
Front: 0'00' j 1"
Rear:-1"11"
2. lf out ol specification, check for bent or damaged
suspensron components.

?
Front Toe Inspection/Adiustment
NOTE: Use commercially-available computerized four
wheel alignment equipment to measure wheel align-
ment (caster, camber, toe, and turning angle). Follow
the equipment manufacturer's instructions.
1. Check the tire pressure.
Center steering wheel spokes.
Check the toe with the wheels pointed straight
a head.
Front toe: lN 1 1 2 mm llN l/16 r 1/16 inl
- lf adjustment is required, go on to step 4.
- lf no adjustment is required, remove alignment
equrpmenr.
Loosen the tie-rod locknuts, and turn both tie-rods
in the same direction until the front wheels are in
straight ahead position.
TIE.ROD LOCKNUT'14 x 1.5 mm
4.
tJ
6.
Turn both tie-rods equally until the toe readang on
the turning radius gauge is correct.
After adjusting, tighten the tie-rod locknuts.
NOTE: Reposition the tie-rod boot if it is twisted or
displaced.
4,1 N.m {4.5 kgf.m, 33 lb{.ft)
2.
Rear Toe Inspection/Adiustment
NOTE: Use commercially-available computerjzed Iour
wheel alignment equjpment to measure wheel align-
ment (caster, camber, toe, and turning angle). Follow
the equipment manufacturer's instructions.
1. Release parking brake.
NOTE:
a Measure difference in toe measurements wlth
the wheels pointed straight ahead.
. if the parking brake is engaged, you may get an
incorrect readang,
Rear toe-in: 2 11 mm ttltollllS int
- lf adjustment is required, go to step 2.
- lf no adjustment is required, remove alignment
equipment.
Before adjustment, note the locations of adiusting
bolts on the right and left compensator arms
Loosen the adjusting bolts, and slide the compen
sator arm in or out. as shown, to adjust the toe
ADJUSTING BOLT10 x 1.25 mm
In CoMPENSAToR ARM
4. Tighten the adiusting bolts
. Example:
After the rear toe inspection, the wheel is 2 mm
(0.08 in) out of the specification.- Move the arm so the adjusfing bolt moves 2 mm
(0.08 in) inward trom the position recorded before the
adjustment.- The distance the adjusting bolt is moved should be
equal to the amount out-of-specification.
64 N.m 16.5 ksf m, 47 lbtft)
18-5

Wheel Alignment
Turning Angle Inspection
NOTEr Use commercially-available computerized four
wheel alignment equipment to measure wheel align-
ment (caster, camber, toe, and turning angle). Follow
the equipment manufacturer's instructions.
'1. Turn the wheel right and left while applying the
brake, and measure the turning angle of both
wneets.
Turning angle:
lnward wheel: 39'50'
Outwald wheel (ref erencel: 33'10'
2.lf the turning angle
check for bent or
nents,
is not within the specifications,
da m aged suspension compo-
18-6

Front Damper
Disassembly/lnspection
Disassembly'1. Compress the damper spring with the spring com-pressor according to the manufacturer,s instruc-
tions, then remove the self-lockino nut.
CAUTION: Do not compress the spring more thann€cessary to remove the nut.
10 mm SELF-LOCKING NUTReplace.
STRUT SPRINGCOMPRESSOR:(Commerci.lly availabl.lBRANICKO T/N MST.s8I}A, T/N 7200,or eouivalent
Release the pressure from thg spring compressor,
then disassemble the damper as shown in the next
column.
Inspostion
1. Reassemble all parts, except the spring.
2. Push on th€ damper assembly as shown.
Check for smooth operation through a full stroke,
both compression and extension,
NOTE: The damper should move smoothlv. lf itdoes not (no compression or no extension), the gas
is leaking, and the damper should be replaced.Check for oil leaks, abnormal noises, or binding dur-ing these tests.
18-18
DAMPER UNIT
Replace.
DAMPER MOUNTING WASHER
BASE
DAMPER MOUNTINGBUBBERCheck for deteriorationand damage.
DAMP€R SPf,INGCheck tor weakened compressionand damage.
SPBING MOUNTING RUBBERCheck for deteriorationand damage,
BUMP STOPCheck fordamage.
DUST COVERPLATE
and
BUMP STOP PLATE
OUST COVERCheck for bending and damage.

IDisassembly/lnsPection
lr
Disassembly
1. Compress the damper spring with the spring com-
pressor according to the manufacturer's instruc-
tions, then remove the self-locking nut.
GAUTION: Do not compress the spring more than
necessary to remove the sell-locking nut.
STNUT SPRING COMPRESSOR:
lComm6rcially .vailablelERANICKo T/N MST-580A, T/N 7200, or equivalent
Release the pressure from the spring compressor.
then disassemble the damper as shown on page 18-
(|-r
lnspection
1. Reassemble all parts, except the sprlng.
2. Push on the damPer as shown.
WOODEN BLOCK
Check for smooth operation through a full stroke,
both compression and extension.
NOTE: The damper should move smoothly lf it
does not (no compression or no extension), the gas
is leaking, and the damper should be replaced.
Check Jor oil leaks, abnormal noises, and binding
during these tests.
{cont'd)
18-27

Rear Damper
Disassembly/lnspection (cont'dl
SELF-LOCK|NG NUT - el10 x 1.25 mm v
29 N.m {3.0 kst'm, 22 lbf.ftlReplace.
DAMPEBMOUNTINGWASHER
DAMPER MOUNTING8U8BERCheck tordeteriorationano oamage.
DAMPERCOLLAR
DAMPERMOUNTING BASE
OAMPER MOUNTING
DAMPER SPRINGCheck lor weakness,compression, and damage.
SPRING MOUNTINGRUBBERCheck for deteriorationano oamage.
BUMP STOPCheck for weaknessand damage,
BUBBESCheck fordeteriorationano oamage.
OUST COVER PLATE
DUST COVERCheck lor bending
DUST COVER BOOTCheck for deteriorationand damage.
18-2A
OAMPER UNITReplace. :
Reassembly
1.Install the damper unit onto a spring compressor.
NOTE: Followthe manufacturer's instructions.
Assemble the rear damper in the reverse order ofdisassembly except the damper mounting washer
and self-locking nut.
NOTE: Align the bottom of the damper spring andspring lower seat as shown.
Position the damper mounting base onto thedamoer unit as shown.
SIRUT SPRING COMPRESSOR:
DAMpERMOUNTTNG (Commerciattyavaitabtel
BRANICKO T/N MST-580A, T/N 7200.or cquivalont
Compress the damper spring with the spring com-pressor.
Install the damper mounting washer, and looselyinstall a new self-locking nut.
Hold the damper shaft with a hex wrench, and tight-en the self-locking nut.
SELF-LOCKING NUTDAMPER10 x 1,25 mm29 N m 13.0 kgt.m, 22 lbtftlMOUNTINGWASHER