1998 HONDA CIVIC Valve

Design Specifications
ITEMMETRICENGLISHNOTEDII/IENSIONS Overall Length2 door Coupe/4 door Sedan (,96 98)('99,'00)2 door Hatchback (,96, ,97)
('98 - 00)OverallwidthOverall height 2 door Coupe/2 door Hatchback4-door SedanWheelbase
I Track FronvRearGround ClearanceSeatiog Capacity
4,445 mm4,450 mm4,170 mm4,180 mm1,705 mm1,375 mm1,390 mm2,620 mm1,475/1,415 mm150 mm
175.0 in115.2 in164.2 in164.6 in67.1 in54.1 in54.7 in103.1 in58.1/58.15.9 in
WEIGHT (USA)Gross Vehicle Weight Raring (GVWR)2 door Coupe HX M/T, DX M/THX CVI ('96)HX CVT ('97,'98)HX CVT ('99}DX A,/T (96 98,DX A"/T ('99, '00)
EXSi2 door Hatchbacl CX. DX r'96, 97,cx, DX ('98)cx (,99, ,00)
DXM/Ti'99,00iDX A/T ( 99, 00,4 door Sedan DX, LX, DX-VEX
3,290 tbs3,320 tbs3,330 tbs3,360 rbs3,290 rbs3,310 tbs3,440 tbs3,480 tbs3,285 tbs3,290 tbs3,290 tbs3,290 tbs3,330lbs3,330 tbs3,460 tbsWEIGHT (CANADA)Gross Vehicle Weight Bating (GVWR)2-door Coupe DX ('96)DX ('97 00)DX-Gsi 1,96)si ('97 - 00)siR2 door Hatchback CX, CX,G ('96)cx, cx,G 1,97)cx-G (,98)
cx ('98 00)DX M/T, SE M/IDX A,/T, SE A,/T4 door Sedan LX, LX VEX M/IEX A/T
1,500 ks1,510 kg1,510 kg1,560 kg1,570 kg1,590 ks1,495 kg1,505 kg1,510 ks1,510 ks1,510 kg1,530 kg1,510 kg1,510 ks1,540 ksENGINEType
Cylinder ArrangementBore and Stroke D16Y5, D16Y7, Dt6y8B 1642DisplacementD16Y5, D16Y7, Dl6Y881642Compression Ratio D16Y5, D16y7D16Y8816A2Valve TrainLubrication SystemOil Pump Displacement at 6,800 engine rprnD16Y5, D,l6Y7, D16Y881642Water Pump Displacementat 6,000 engine rpm 016Y5, D16Y7, D16y8816A2Fuel Required D16Y5, D16Y7, D16y8
816A2
Water-cooled, 4-stroke SOHC*1, SOHCVTEC"', SOHC WEC.E'3, DOHC VTEC{gasoline engineInline 4 cylinder, transverse2.95 x 3.54 in3.19 x 3.05 in97.0 cu-in97.3 cu in9.49.610.2Belt driven, 4 valve per cylinderForced and wet sump, trochoid pump
33.4 f (35.3 US qt, 29.4 lmp qt)/minute43.8 | (46.3 US qt, 38.6 lmp qt)/minute
125 { {132 US qt, 110 lmp qt}/minute140 f {148 US qt, 123 lmp qt}/minuteUNLEADED gasoline with 86 PumpOctane Number or higherPremium UNLEADED gasoline 91 PumpOctane Number or higher
75.0 x 90.0 mm81.0 x 77.4 mm1,590 cm31,595 cm3
*1: D16Y7*': D16Y8*3: D16Y5*': 816A2
STARTEBType/MakeNormal OutputNominalVohageHour RatingDirection of Rotation
Gear reduction/MITSUBA1.0 kw, 1.2 kw12V30 secondsClockwise as viewed from gear end
5-Z.V
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Engine
Engine Removal/lnstallation ................ 5-1
Gylinder Head/Valve Train ................... 6-1
Engine Bfock .......... ...........7-1
Engine Lubrication ........... 8-1
Intake Manifold/Exhaust System ........ 9'1
Cooling ......... 10-1

Engine Removal/lnstallation
Installation (cont'd)
Except CVT:
12 x 1.25 mm64 N.m (6.5 kgd.m,
Tighten the bolts/nut on the left front mount in thenumbered sequence shown {O - @).
(t 12 x 1.25 mm83 N'm (8.5 kgf.m,61 tbt.trl
/+4 N.m 14.5 kgf.m,33 lbt.trl
O 12 r 1.25 mm59 N.m 16.0 kgt.m,43 tbt.rtlSeplace.
5-16
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7. Perform the following:
. Clean the areas where the driveshaft(s) and theintermediate shaft contact the transmission (dif_ferential) thoroughly with solvent or carburetorcteaner, and dry with compressed air.. Check that the set rings on the ends of the drive_shaft and intermediate shaft click into place.CAUTION: Use new set rings,. Adjust the shift cable (see section 14).. Adjust the throttle cable (see section 11).. Adjust the cruise control cable (see section 23).. Refill the engine with engine oil (see page 8-6).. Refill the transmission with fluid (see section 13,14).
. Refill the radiator with engine coolant (see page10-7).
. Bleed air from the cooling system with the heatervalve open (see page j0-7).
. Clean the battery posts and cable terminals withsandpaper, assemble them, then apply grease toprevent corrosaon.. Inspect for fuel leakage (see section j l).After assembling the fuel line, turn on l) the igni_tion switch (do not operate the starter) so that thefuel pump runs for approximately two secondsand the fuel line pressurizes. Repeat this opera_taon two or three times, then check for fuel leak_age at any point in the fuel line,

Cylinder Head/Valve Train
Dl6Y5, D16Y7, Dl6Y8 engines
Special Tools ............. G2
VTEC Control System
Troubleshooting Flowchart .........." 6-3
VTEG Solenoid Valve
Inspection ............" 6-6
VTEC Rocker Arms
Manual lnspection
(D16Y5 engine) ............................. 6-7
Manual Inspection
(D16Yg enginel ................'............ 6-7
Inspection Using Special Tools
{D16Y5 engine} .....................""'... 6-8
Inspection Using Special Tools
(D16Y8 engine) .........................'.'. 6-10
Valve Clearance
Adiustment ..."".....6-12
Valve Seals
Replacement (Cylinder head removal
not requiredl ................................ 6-1tl
Crankshaft Pulley and PulleY Bolt
Replacement ."...... &16
Timing Selt
lllustrated Index ............................... 6-17
Inspection .............. 6-18
Tension Adjustment ........................ 6- 1 I
Removal ......,,......... 6-19
lnstallation ............. 6-20
Crankshaft Speed Fluctuation (CKF) Sensor
Repf acement .........6'22
Cylinder Head
lllustrated Index ............................... 6-23
Removal ................. 6-27
Warpage ................ 6-40
lnstallation ............. 6-45
Rocker Arms
Removal ................. 6-30
Disassembly/Reassambly ............... 6-31
Rocker Arms and Lost Motion Assemblies
Inspection (D16Y5, D16Yg
enginesl "..........' 5-34
Rocker Arms and Shafts
Glearance Inspection ....................... 6-35
Camshaft
Inspection .............. 6-36
Valves, Valve Springs and Valve Seals
Removal ........""..... 6-38
Valve Guides
Valve Movement .............................. 6-39
Replacement .........6-41
Reaming .......'......'.' 6-43
Valve Seats
Reconditioning .'....6'40
Valves
lnstallation ............. 6-tt3
Camshaft/Rocker Arms and
Camshaft Seal/Pulley
lnstallation ............. 6-44

Special Tools
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Ref. No. I Tool Number
o
o
@
@
oor@-1
andO-2
@
o
OTHAH _ PJTOl OB
07JAA - 001010A
07JAB - 0010204
OTLAJ _ PR3O2OB
07NAB - 0010404
07NAJ - P07010A
01406 - 0020201
OTMAJ - PY4O'114
07MAJ - PY40120
07406 - 0070300
07742 - 0010100
Valve Guide Reamer, 5.5 mm
Socket, 17 mm
Holder Handle
Air Stopper
Holder Attachment. 50 mm
Pressure Gauge Adapter
A/f Pressure Hose
A/T Pressure Hose,2,210 mmAy'T Pressure Adapter
A,/T Low Pressure Gauge WPanelValve Guide Driver, 5.5 mm
6-43
6-16
o- to
6-8, 10
6-16
6-4
6-4
6-4
6-4
6-4
6-4't, 42
-rE=-!fT----F
o@
@@
o
O-r
-A\
g
@El
ril
6l
A-2
a
6-2

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VTEC Control System
Troubleshooting Flowchart (cont'd)
VTEC PRESSURE SwlTCH 2PCONNECTOR
Wire side of female(€rmrnats
VTEC SOLENOID VALVE lPCONNECTOR
I r----'t I
ll ' ff---r'-'1
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-L
Terminal side ofmale terminal
A/T LOW PRESSUREw/PAt{EL07406-0070300
NOTE: Keep measuring time as short aspossible because engine is running with noload (less than one minute).
PRESSURE GAUGEADAPTER07NAJ - P07010A
A/T PRESSURE I{OSE07406 - 0020201
ot
A/T PRESSURE HOSE.2,210 mm07MAJ - PY&llA andA/T PRESSURE ADAPTER07MAJ - PY,()120
6-4
(From page 6-3)
(To page 6-5)
Test the VTEC Pr6suro SwitchWiro:Nleasure voltage across the VTECpressure switch 2P connector.
. Rcpai. opon in tho wirebrtw.en VTEC pr6.urc switchand G101.. lf th. wir6 b OK, sub.thuto alnown-good ECM/PCM !ndracheck.
ls there baftery voltage?
Te3t the VTEC Solonoid V.lve:1. Turn the ignition switch OFF.2. Disconnect the VTEC solenoidvalve 1P connector.3. Check for continuity betweenthe VTEC solenoid valve 1Pconnector terminal No. 1 andbody ground.
ls there 14 - 30 0?
Te3t tho WEC Solonoid Vatvo:'1. Remove the VTEC pressureswatch and install the specialtool as shown, then reinstallthe VTEC pressure switch.2. Reconnoct the VTEC solenoidvalve 1P connector and VTECpressure switch 2P connector.3, Connect the tachometer (seesection 11).4. Stan the engine.5, Warm up engine to normaloperating temperature (cool,ing fan comes on).6. Check oil pressure at enginespeeds D16Y5 engine: 1,000and 3.000 rpm, D16Y8 engine:1,000,3,000 and 5,000 rpm.
ls pressure below 49 kPa(0.5 kgflcm,, 7 psi)?In.poct the VTEC aolonoid vllvols.c p.g. &6).
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(From page 6'4)
Test the VTEC Solenoid Valve:1. Turn the ignition switch OFF.2. Disconnect the wEC solenoidvalve 1P connector.3. Attach the battery positave
terminal to the VTEC solenoidvalve terminal.4. Start the engine and checkthe oil pressure at enginespeed of 5,000 rpm.
Inspect lhe VTEC solonoid valve
lsee p6ge m).ls the pressure above 390 kPa(4.0 kgtcm',57 psi)?
Test the VTEC Pressure Switch:With the battery positive terminalconnected to the VTEC solenoidvalve, measure voltage betweenthe ECM/PCM connector terminal'96 - 98: Cl5,'99 - 00: C10 andbody ground.
ls there battery voltage above5,000 rpm?
T6st the VTEC Solenoid Valvewire:1. Turn the ignition switch OFF.2. Check for continuity betweenthe VTEC solenoid valve 1Pconnector terminal and theECM/PCM connector terminal'96 - 98: A8, '99 00r B'12.
Repair open in the wire betweenthe ECM/PCM ('96 - 98: A8, '99 -
0o: 8l2l and VTEC solenoid v.lv6connoc{or.
Test the VTEC Solenoid Valve
Check for continuity between theVTEC solenoid valve 1P connectorterminal €nd body ground.
ReDair 3hort in the wire betweenthe ECM/FCM ('96 - 98: A.8, '99 -
0O: Bl2l and VTEC aolenoid valveconnectot,
ls there continuity?
Substitute a known-good ECM/PCM and recheck. lf symptom/indication goes away, replacethe original ECM/PCM.
VTEC SOLENOID VALVE1P CONNECTOR
Terminalside ofmale terminal
ECM/PCM CONNECTOR C {31P}
'99 - 00:'96 - 98:
CONNECTOR
'99 - 00:
VTEC SOLENOIDVALVE
ECM/PCM CONNECTORB {25Pt1P CONNECTOR'96 - 98:
VTEC SOLENOIDVALVE
ECM/PCM CONNECTOR
A {32P1
VTS{GRN/YEL)
wire side o{ femaleterminals
wire side oI temaleterminals
VTM

VTEC Solenoid Valve
Inspection
1.
6x1.0mm12 N.m 11.2 kgf.m,8.7 lbtft)
Disconnect the 1P connector from the VTEC sole-noid valve.
Measure resistance between the terminal and bodyground.
Resistance: l4 - 30 O
lf the resistance is within specifications, remove theVTEC solenoid valve assembly from the cylinder
head, and check the VTEC solenoid valve filter for
cloggrng.
. lf there is clogging, replace the engine oil filterand the engine oil.
VTEC SOLENOID VAI-VE ASSEMBLY
6-6
(
4. lf the filter is not clogged, push the VTEC solenoidvalve with your finger and check its movement.
. lf the VTEC solenoid valve is normal. check the
engane oil pressure.
6x1.0mm12 N.m {1.2 kgt.m,8.7lbf.ft)
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