Page 98 HONDA INTEGRA 1994 4.G Service Manual

Cylinder Head
Removal
Engine removal is not required or this procedure.
CAUTION: To avoid damaging tho cylinder head, wail
u[tilths.nginc coolant tsmperaturo drops bolow 100"F(38'Cl bafore loos6ning tho retaining bolts.
NOTE;
. Inspect the timing belt before removing the cylinder
head.
Turn the crankshaft pulley so that the No. 1 piston is
at top dead center (TDc) {page 6-51).
Mark all emissions hoses betore disconnecting them.
Anti-theft radios have a coded theft protection circuit.
Be sure to get the customer's code number before- Disconnecting the battery.- Removing the No.32 (7.5 A) fuse trom the under-
hood fuse/relay box.- Removing the radio.
After service, reconnect power to the radio 8nd turn it
on.
When the word "CODE" is displaved. enter the cus-
tomer's 5-digit code to restore radio operation,
Disconnect the negative terminal from the battery.
Drain the engine coolant (see page 10-5).
. Remove the radiator cap to speed draining.
Relieve fuel pressure (see section 111.
l@ Do not 3moke whilo working on fuel
a
a
'1.
systgm. ko6p opon tlamo ot Spark away trom work
aroa. Drain fugl only into an approved containsr,
4. Disconnect the fuel feed hose.
SERVIC€ BOLT15 N.m (1.5 kgtm, rl bf.tt)WASHERSReplace.
BANJO BOLT
5. Remove th€ strut brace,
6. Remove the intake air duct.
8 x 1.25 mm24 N.m (2.1kg[.m, 17 lbtftl
INTAKE AIR
(cont'd)
6-55

Cylinder Head
Removal (cont'dl
Remove the heat shield from the P/S bracket (see
page 5-18).
Remove the air conditioning (Ay'Cl compressor belt(see page 6-49).
Remove the alternator belt {s€e page 6-49).
Remove the cruise control actuato..
16.
17.
'18.
'19.
ACTUATOR
20. Remove the side engine mount.
10 x 1.25 mm
SIDE ENGINE
12 x 1.25 mrn7a N.m 17.5 kgl.m,5a rbtftl
8 x 1.25 mmN.m 12.4 kgf.m, 17 lbtftl
21. Remove the cylinder head cover.
22. Remove the timing belt (see page 6-49).
23. Remove the camshaft pulleys and back cover.
24. Remove the exhaust manifold.
SELF.LOCKING NUT8 x 1 .25 mm31 N.m {3.2 kgt m, 23 lbf.ftlReplace.
6-58
'ilffi{

25. Remove the intake manifold.
26. Loosen the adjusting screws.
INTAKENo.4 No.3 No.2No. 1
No. 4No.3 No. 2EXHAUSTNo. 1
GASKET
21.Remove the camshaft holder plates, camshaft hold-
ers, and camshafts.
CAMSHAFT
28. Remove the cylinder head bolts, then remove the
cylinder head.
CAUTION: To prsvent warpage, unscrew th€ bolts
in sequence l/3 turn at a time; repeat until all bolts
aro loosoned.
CYLINDER HEAD BOLT LOOSENING SEOUENCE
6-59

Locations
GAUTION: Aftcr in3tlllino th! roCk.r shrft o.ifice, trY to tum ihc tock r .hatt to makr luta thlt tho orifice ls corrccdY
in3artcd in the holc of tho lockor shrft. It the oritice b in placc' it should not turn'
NOTE:
o ldentify partsastheyare removed to ensure reinstallation in original locdtions'
. lnsoect rocker shafts and rocker arms (see pages 6-62 and 63)'
o Rocke. arms must be installed in the same position it reused'
. Clean the rocker shaft orifices when installing.
I erio, to ,einstalling, clesn all the parts in solvent, dry them and spply lubricant to any contact surfacos'
NTAKE BOCXER ARII,I ASSEi/IBUES
RUBBER BA D
INTAKE ROCXERsEALlMi BoLTS, 20 m|tr64 N.m 16.5 ksf.]n, 4.7 lbf.ftl
I
&
tu
SHAFTCl6an.
ry
ryHOII
o-nrM;sR6placo.
TROCIGR SHAFToRrFrcEsl
BOCXER
RUASER BA'{DSHAFT
-%
t
EXHAUST ROC(ER
EXHAUST B(rcKER ARM ASSEMBLIES
D*"'-,
6-61

Camshafts
Inspection
4,
5.
9.
1.
Remove the bolts, then remove the camshaft hold-
ers from the cvlinder head.
NOTE: Unscrew the camshaft holder bolts two
turns at a time, in a crisscross pattern.
Lift camshaft out of cylinder head. wipe clean, then
inspect lift ramps. Replace camshaft if lobes are pit-
ted, scored, or excessively worn.
Clean the camshaft bearing surfaces in the cylinder
head. then set camshaft back in place.
Place a plastigage strip across each journal.
Install the camshaft holders, and then tighten the
bolts to the specified torque as shown in the left
column on this page.
NOTE: Do not rotate camshafts during inspection.
Remove the camshaft holders. Measure widest Dor-
tion of plastigage strip on each journal.
Camshaft-to-Holder Oil Clearance:
Standard {New): 0.050 - 0.089 mm
{0.002 - o.Ooil in)
Sswice Limit: 0.15 mm (0.006 in)
(cont'dl
NOTE:
. Do not rotate the camshaft during inspection.
. Remove the rocker arms and rocker shafts.
1. Put the camshafts and camshaft holders on the
cylinder head, and then tighten the bolts to the
soecified torque.
Specified Torque:
O - @: 8 mm bolts 26 N.m {2.7 kgl.m,20 lbt'ftl(D -(D:6 mm bolts 9.8 N.m {1.0 kgt.m, 7.2 lbf'ftl
Seat each camshaft by pushing it toward distributor
end of the cylinder head.
Zero the dial indicator against end of distributor
drive, then push the camshaft back and forth and
read the end play.
Camshaft End Play:
Standard (New): 0.05 - 0.15 mm
10.002 - 0.006 inl
Sawics Limit: 0.5 mm (0.02 inl
oooo@

Valve Guides
Replacement (cont'dl
7. Slip a 6 mm {0.2 in) steel washer and the correct
driver attachment over the end of the driver (The
washer will absorb some of the imDact and extendthe life of the driver).
:=:-/--PDRIVER6 mm 10.2 int ATTACHMENTWASHER
Install the new guide(s) from the camshaft side ofthe head; drive each one in until the attachment
bottoms on the head. lf you have all sixteen guides
to do, Vou may have to reheat the head one or twomore times.
Valve Guide Installed Height:
Intake: 12.55 - 13.05 mm {0.49it - 0.51it inl
Exhaust 12.55 - 13.05 mm {0.494 - 0.514 inl
VALVE GUIDE
Reaming
NOTE: For new valve guides only.
1. Coat both reamer and valve guide with cutting oil.
2, Rotate the reamer clockwise the full length of thevalve guide bore.
3. Continue to rotate the reamer clockwise whileremoving it from the bore.
4. Thoroughly wash the guide in detergent and waterto remove any cutting residue.
5. Check clearance with a valve (see page 6-70).
. Verify that the valve slides in the intake and ex-haust valve guides without exerting pressure.
REAMER HANDLE
Turn reamer inclockwise directiononry.
C'
o
a
-'{)
6-72

Gylinder Head
Warpage
NOTE: lf camshaft-to-holder oil clearances (see page
6-65) are not within specification. the head cannot be
.esurfaced.
lf camshaft-to-holder oil clearances are within sDecifica-
tions, check the head for warpage.
Measure along edges. and 3 ways across center.
lf warpage is less than 0.05 mm {0.002 in) cylinder
head resurfacing is not required.
lf warpage is between 0.05 mm {0,002 in) and 0.2 mm
{0.008 in), resurface cvlinder head.
Maximum resurface limit is 0.2 mm {0.008 in) based
on a height of 142 mm (5.59 in).
PRECISION STRAIGHT EDGE
Cylindsr Hssd Height:
Standard lNsw): 1i11.95 - 1,f2.05 mm
15.s89 - 5.593 inl
6-74

lnstallation
Installthe cylinder head in the reverse order of removal:
NOTE:
. Always use a new head and manifold gasket.
. The cylinder head gasket is a metal gasket Take care
not to bend it.
. Rotate the crankshaft, set the No. 1 piston at TDC
(page 6-51).
. Do not use the middle cover and lower cover for
storing items disassembled.
. Clean the middle cover and lower cover before instal-
lation.
a Replace the washer when damaged or deteriorated
1. tnstall the cylinder head gasket. dowel pins and the
head oil control orifice on the cylinder head
NOTE: Clean the oil control orifice when installing.
O.RINGReplace.
HEADOIL CONTROLORIFICECloan.
2. Tighten cylinder head bolts in two steps. In the first
step, tighten all bolts in sequence to about 29 N'm
(3.0 kgf.m.22 lbf'ft). In the final step, tighten in
same sequence to 81 N.m (8.3 kgnm.60 lbf'ft).
NOTE: Apply clean engine oil to the bolt threads
and under the bolt head.
CYLINDER HEAD BOLT TOROUE SEOUENCE
11 x 1.5 mm81 N.m {8.3 kgf.m,60 lbf ft)
Install the intake manifold and tighten the nuts in a
crisscross pattern in two or three steps, beginning
with the inner nuts.
GASKETRePlace
8 x 1.25 mm23 N.m 12.3 kgl.m.17 tbf.ftt
8 x 1.25 mm24 N,m 12.,4 kgf m,17 tbf.ft)(cont'd)
6-75

11.
12.
13.
Cylinder Head
Installation lcont'd)
lnstallthe timing belt lsee page 6-51).
Adjust the valve clearance (see page 6-44).
Install the rubber seal in the groove of the cylinder
head cover. Seat the seal in the recesses for the
camshaft first, then 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 seatedsecurely in the corners of the recesses with nogap.
COVER
6-78
14. Apply liquid gasket to the rubbe. seal at the eightcorne.s of the recesses.
NOTE:
. Use liquid gasket, Part No. 08718 - 0001.. Check that the mating surfaces are clean and dry
before applying liquid gasket.
a Do not install the parts if 20 minutes or more
have elapsed since applying liquid gasket.
Instead,.eapply liquid gasket after removing oldresidue.
r After assembly, wait at least 20 minutes beforefilling the engine with oil.
Apply liquid gasket tothe shaded areas.

lllustrated Index
NOTE:
. Apply liquid gasket to the mating surfaces of the right
side cover and oil pump housing before installing
them.
. Use liquid gasket, Pan No.08718 - 0001.
. Clean the oil pan gasket mating surfaces before
installing it.
Bl8Bl engine: wAsHEF
Lubricate all internal parts with engine oil during
reassemory.
6x1.0mm12 N.m (1.2 kgf.m,I lbf.ftl
6x1.0mm11 N.m (1.1 kgf.m,8lbtft)
OIL SCREEN
11 x 1.25 mm76 N.m17.8 kgl.m, 56 lbf ftlApply engine oilto the bolt
threads and the washers.NOTE: After torquingeach cap, turn crankshaftto check lor binding.
DRAIN PLUG44 N.m {4.5 kgf.m,33 tbtfr)
GASKETReplace.
6x1.0mm1'l N.m {1.1 kgt.m, I lbtft)
OIL PAN
O.RING
GASKETReplace.
BEARING CAP
12 x 1.0 mm103 N.m (10.5 kgf.m, ?6lbf ft)
MANUALFLYWHEEL
'12 x 1.0 mm74 N.m {7.5 kgt m,54lbf.ftlTorque sequence, page 7 7
DRIVE PLATECheck for cracks,
AUTOMATIC TRANSMISSION
WASHER
6x1.0mm11 N.m {1.1 kgl.m,8 tbf.frt
CRANKSHAFTEnd play, page 7-12Runout, Taper, andOut-of-Round, pages 7 12, 13Instsllation, page 7 22
MAIN BEARINGRadial clearance, page 7-8
Sel€ction, page 7-8NOTE: New main bearingsmust be selected by matching
crank and block identificationmarkrngs.
Apply liquid gasket
to block mating surface.
OIL SEALInstallation, page 7-25,
RIGHTSIDE COVERDOWEL PINSOIL PUMPOverhaul, page 8-9THRUST WASHERSGrooved sides face outward.NOTE: Thrust washer thicknessis tixed and must not be changedby grinding or shamming.
8 x 1 .25 mm2,1 N.m {2.4 kgt m,17 tbt.ft)
OIL SEALInstallation, page 8-11Apply engrneorl.Replace.
Apply liquid gasket
to block mating
6x1.0mm'11 N.m {1.1 kgf'm, 8 lbl ft)(conr'dl
7-3