engine HONDA INTEGRA 1994 4.G Service Manual

14.
16.
Installthe timing belt {see page 6-12).
Adjust the valve clea.ance (see page 6-31.
Install the rubber seal in the groove of the cylinder
head cover. Seat the seal in the recesses for thg
camshaft first, th€n work it into the groove around
the outside edges,
NOTE:
. Before installing the rubber seal, thoroughly
clean the seal and the groove.
. When installing, make sure the seal is seated
securely in the corners of the recass€s with no
gap.
CYUNDER HEADCOVER
RUBAER SEAL
17.Apply liquid gask€t to the rubber seal at the eight
corners of the recesses.
NOTE:
. Use liquid gaskst, Part No. 08718 - 0001.
. Check that the mating surfaces are cl€an and dry
before applying liquid gasket.
. Do not install the parts if 20 minutes or mor6
havs elapsod sinco applying liquid gasket.
Instead, reapply liquid gasket after removing old
reaidue.
. After assembly, wait at lsast 20 minutes before
filling the engine with oil.
Apply liquid g.sket tothe shaded areas.
(cont'd)
6-31

Cylinder Head/Valve Train
818C1 engine
Special Tools ............. 6-34
wEc
Troubleshooting Flowchart
WEC Solenoid Valve ................... 6-36
VTEC Pressure Switch ................. 6-38
VTEC Solenoid Valve Inspection .... 6-41
Rocker Arms
Manual Inspection .....,................. 6-42
Inspection Using Special
Tools ....................................,.....,.. 6-/|i|
Valve Glearance
Adiustment ............ 6-44
Timing Belt
lllustrated 1ndex ............................... 6-46
Inspection .............. 6-48
Tension Adiustment ........................ 6-48
Removal ................. 6-4{l
lnstallation ............. 6-51
Crankshaft Pulley Bolt
Replacement .........6-47
Cylinder Head
lllustrated Index ............................... 6-53
Removal .................6-55
Warpage ................6-74
lnstallation ............. 6-75
Rocker Arms
Removal ................. 6-60
Location ................. 6-61
lnspection .............. 6-62
Arm-to-Shaft G|earance .................. 6-63
Installation ............. 5-64
Camshafts
Inspection .............. 6-65
Valve Guides
Valve Movement .............................. 6-70
Replacement .........6-71
Reaming ................. 6-72
Valve Seals
Reconditioning ......6-73
Valves. Valve Springs and Valve Seals
Removal ................. 6-67
lnstallation Sequence ..........,.......,... 6-69
Valve lnstallation ............................. 6-70

VTEC
Ref€r to page 11-32 thru I l-39 beforo troubleshooting.
-g: -mi !5*3ij'i:,*o:",,XTl.Lamp
(MlL) indicates Disenostic rrouble code (Drc) 2r:A problem in the wEc
\,__-:-/ \.---l-l
Iel- -l 2,1 l-
MIL h.. b..n Fport d on.Wrth aaavica chack connac,tot
iomp.d, Codc 2l i. indic.t.d.
Oo tho ongino control module(ECM) Rg3ot Procgduro.
w6rrn up engine to normal op€r-ating tsmporature (the coolingfan comog on).
Do th€ Road Test.'
lmormitt.m t ilur., .yrtom i. OK!t thi.tim..Chacl tor poor connactiont otloo.. wircr !l VTEC .ol.noidv.lv. lnd ECM.
ls MIL on and does it indi-cato cod€ 21?
Turn tho ignition switch OFF.
Oisconnect tho 1P connsctorlrom the VTEC solenoid valvo.
Chock for continuity betw66n 1Pconn6clor terminal and body
9rcUnO.
ls there '14 - 30 07R.pl.c. th. VTEC rolonoid v.lvr,
' Road Test:Accelerate in 1st gear to 6n engino spood ovor 6000 rpm.Hold thst engine sp€ed tor at least two seconds.lflhe MIL do6s not coms on during th€ first road tost,reoeat this test two more tim95.
YES
(To pago G37l
6-36

wEc
6-38
Troubleshooting Flowchart - VTEC Pressure Switch
Refer to page 11-32thru 11-39 beJore troubleshooting'
-.+- -r";-r- Malfunction Indicator Lamp (MlL) indicates Oiagnostic Troubles Code (DTC) 22: A problem in the VTEC- l{{?l- ;l ziz r: pressur€ Switch circuit.
-lr@l- |22 1-
* Road Test:Accolerato in lst gear to an engine speed over 6000 rpm
Hold that engine speed for at least two seconos'
lf the MIL does not come on during the first road test'
reoeat this test two more limes.
- MIL har bagn.oportcd on.- With t.rvic. chack connactor
iump.d, cod€ 22 it indic.t.d.
Do the engine control module(ECM)Reset Procedure.
Warm !p engine to normal oper-
ating temperstur€ (cooling fan
comes on).
Do the Boad T€st.'
Intc.mift.nt failu.o, ry3tom ia OK
at thi. tim..Chack for pool connaction3 ol
loo!. rvirat at VTEC Ptasturo3whch and ECM.
ls MIL on and does it indi'
cate code 22?
Turn lhe ignition switch OFF
Disconnect the 2P connector
lrom the VTEC Pressure switch.
Check Ior continuity between
BLK terminal and body ground.
Rcpair opcn in BLK wit. botwcon
2P connector rnd body ground
tG101l.
Check for continuity between
8LU/8LK terminal and D6 termi'
nal.
(To page 6 39)

(From page 6-38)
Ropair op€n in BLU/BLK $,iro between ECM lD6) and 2P conn.c-tor,
Check for continuity between D6terminal and body ground.
R6pri. short in BLU/BLK wir. bc-tweon ECM (D6l .nd 2P connec-toa,
Remove 10 mm sealing bolt andconnect orl pressure gauge.
Connect a tachometer {soe sec-tion 11).
Start the engine and warm it upto normal operatrng temperature.
Check oil pressure at enginespeeds of 1,000, 3,000 and 5,000rpm,
ls pressure bolow 50 kPa(0.5 kgflcm', 7 psi)?Inrpoct tho VTEC aolanoid v.lv..
Turn off the engine.Check lor continuity between the2 terminals on the VTEC pressure
switch.
o oooooo ooo ooo I oooooooo trt!*Hffi Oooooo ooooo
o oooo ooooo ooo I oo oooo ooo ooooo oo oo o
Coitlnuity?
D6
I
GAUGE JOINT ADAPTERSNAPON MT2&1710 x 1.0 mm. lJse new washer wheninstalling the sealing bolt.
Y AVAILAEIIOIL PRESSURE GAUGE


\-
]L
vtEc sot-€NotD
(cont'd)
NOTE:Keep mgasuring time as short as possible bocaus€ engine isrunning with no load (less than one minute).
YES
(To page 6-40)
Conlinuity?
6-39

VTEC
Troubleshooting FlowchartVTEC Pressure Switch (cont'dl
lFrom pag6 6-39)
Disconnsct lhe 1P connectortrom the VTEC sol6noid valve.
Attach the battery positivo torminal to the GRN/WHT terminal.
Start the engine and chgck oilpressure at 5,000 rpm (lor VTECoil pr€ssure test).
ls pressure above 400 kPa(4kgt/cm,, 60 psi)?In.p.ct th. VIEC .olrnoid v.lv..
Check tor continuity betwe6n the2 terminsls on th€ VTEC prsssure
switch !nder above condition.
Sub.titut. . klown-eood ECMand rachack. |f aymplom/indica-tion goaa away rrplaca th. o?igi-n.l ECM.
u
OOMMERCIALLY AVAILABIIOIL PRESSURE GAUGE
GAUGE JOIMf ADAPIORSNAPON MT2S1'10x 1.0 mm. Use new washer wheninstalling th6 soaling bolt.NOTE:Keep moasuring tim6 as shon 6s possi-
ble because engine i5 running with noload lless than ono minuto).

WEC Solenoid Valve Inspection
Disconnect the 1P connector trom the VTEC
solenoid valve.
M€asurs resistance between th€ terminal 8nd body
grouno.
R.3bt!nc!: 1l - 30 O
lf the resistance is within specificstions, romove the
WEC sol€noid valve from the cvlindor hsad, and
check the VTEC solenoid valve filter for clogging.
. lf there is clogging, replacs the engin€ oil filter
and the engine oil.
VTEC SOT.CNOTD
12 tTln 11.2 kg[.m,8.7 lbttt]
6-41
4. lf th6 filter is not clogged, push the VTEC solenoid
valv€ with your finger and check its movement.
. lf VTEC solsnoid valve is normal, check the
engins oil pr€ssure.
6x1.0mm

Grankshaft Pulley Bolt
Replacement
NOTE:
. Crankshaft pull€y bolt size and torqus value:
1,0 x 1.25 mm
177 N.m (18.0 kgt.m, 130 lbf'ft)
. When instslling a new crankshaft 8nd/or now pulley
bolt:
O tight6n the pulley bolt to 196 N'm (20.0 kgf'm, 145
tbf.ft).
@ looson the bolt,
@ r6tighten it to 177 N.m (18.0 kgf'm, 130 lbf'ft).
. When reinstalling the bolt, lubricate the thresds 8nd
flange with engine oil, but don't lubricate the washer
and pulley.
Lubriceto with engine oil hers.
SOCKET WRENCH, 19 mmCOi'MEBCI,ALLY AVAILABT.E
PULITY HOLDEB ATTACHMEUT,HEX slt mm, OFFSETOTMAB - PY3O1OA
6-47

Timing Belt
lnspection
Remove the cylinder head cover.
. Refer to page 6-78 when installing.
Inspect the timing belt for cracks and oil or coolant
soaking.
NOTE:
. Replace the belt if oil or coolant soaked.
. Remove any oil or solvent that gets onthe b€lt.
Rotate pulleyand inspect b6lt.
After inspecting. retorque the crankshaft pulley bolt
to 177 N.m (18.0 kgf.m, 130 lbf.ft).
Tension Adjustment
CAUTION: Always adlust timing bslt tsnsion with th6
engine cold.
NOTE:
. The tensioner is spring-loaded to apply proper ten-
sion to the belt automatically after making the follow-
ing adjustment.
a Alwavs rotate the crankshaft counterclockwise when
viewed trom the pulley side. Rotating it clockwise
may result in improper adjustment of the belt ten-
sion.
Remove the cylinder head cover. (Refer to page 6-
78 when installing.)
Set the No. 1 piston at TDC (see page 6-51).
Rotate the crankshaft 5-6 revolutions to set the belt.
Set the No. 1 piston at TDC.4.
AINUSTING AOLT5/a N.m 15.5 kg{.m, to lbtftlFor adjustment only,
5.
7.
8.
A
.//\v-/
Directionrotat|on,
Loosen the adjusting bolt 1/2 turn (180') only.
Rotate the crankshaft counterclockwise 3 teeth on
the camshaft pulley.
Tighten the adjusting bolr.
After adjusting, retorque the crankshaft pulley bolt
to 177 N.m (18.0 kgf.m, 130 lbf'ft).
6-48

Removal
NOTE:
. Turn the crankshaft pulley so the No. 1 piston is at
top dead center {TDC) before removing the belt (see
page 6-51).
. Inspect the water pump when removed the timing
belt {see page 10-9).
Remove the wheel well splash shield (see page 6-
57 ).
Loosen the adiusting bolt and mounting bolts, then
remove the power steering (P/S) pump belt.
I x 1.25 mm2a N.m l2.a kgt.m, 17 lbt ttl
Loosen the adjusting bolt and idler pulley bracket
bolt, then remove the air conditioning (Ay'C) com-
oresso. belt.
D1INBOLT10 x 1.25 mmira N.m (4.5 kgf.m, 33 lbf'ttl
AOJUSTING
ADJUSNNG
BELT
4. Loosen the adiusting nut and mounting nut, then
remove the alternator belt.
NUTI x 1.25 mm24 N.m {2.a lgf.rn,17 tbf.ftl
MOUNTING NUT10 x 1.25 mm4,t N.m lia.5 kgl.m,33 tbt ftl
Remove the cruise control actuator (see page G58).
Bemove the side engine mount.
10 x 1.25 mm52 N.m 15.3 kgt m, 38 lbtftl
CNGINCMOUNT
12 x 1.25 mm74 N.m (7.5 kgt m,s4 lbf.trl
(cont'd)
6-49