crank HONDA CIVIC 1998 6.G Owner's Manual

Inspection
Remove the cylinder head cover.
NOTE: Refer to page 6-86 when installing the cylin-
der head cover.
Inspect the timing belt for cracks and oil or coolant
soakrng.
NOTE:
. Replace the belt if oil or coola nt soaked.
. Remove any oil or solvent that gets on the belt'
I
Rotate PUlleYand inspect belt-
After inspecting, retorque the crankshaft pul
to 177 N.m (18.0 kgf'm, 130 lbf'ft)
'L
lnspect thrs area
Tension Adiustment
CAUTION: Always adiust timing belt tension with the
engine cold.
NOTE:
. The tensioner is spring-loaded to apply proper ten
sion to the belt automatically after making the follow-
ing adjustment.
. Always rotate the crankshaft counterclockwise when
viewed from the pulley side. Rotating it clockw'se
may result in improper adjustment of the belt ten-
sion.
1, Remove the cylinder head cover.
NOTE; Refer to page 6-86 when installing the cylin-
der head cover.
2. Set the No. 1 piston at TDC (see page 6-64)
3. Rotate the crankshaft live or six revolutions to set
the belt.
4. Set the No. 1 Piston at TDC
ADJUSTING BOLT
54 N.m(5.5 kgt.m, a0 lbtftl
5.
7.
8.
Loosen the adjusting bolt 180'.
Rotate the crankshaft counterclockwise three teeth
on the camshaft PulleY.
Tighten the adjusting bolt.
After adjusting, retorque the crankshaft pulley bolt
to 177 N.m (18.0 kgf'm, 130 lbnft)
ley bolt
6-61

Timing Belt
Removal
NOTE:
. Replace the timing belt at 105,000 mites (168,000 km)according to the maintenance schedule (normal con-ditions/severe conditions).
lf the vehicle is regularly driven in one or more of thefollowing conditions, replace the timing belt at 60,OOOmiles (U.S.A.) 100,000 km {Canada).. In very high temperatures (over 110"F, 43"C).. In very low temperatures (under -20.F, 29.C).. Turn the crankshaft pulley so the No. 1 piston is attop dead center (TDC) before removing the belt (seepage 6-57).
. Inspect the water pump before installing the timingbelt {see page 10-14).
1.
IOLER PULLEY BRACKETEOLT10 x 1.25 mm44 N.m 14.5 kgf.m, 33 bnft)
6-62
Remove the splash shield (see page 5-9).
Remove the adjusting bolt and mounting bolts, thenremove the power steering (P/S) pump belt andpump.
8xL25mm24 N m {2.{ kgf.m, 17 lbf.ft)
Loosen the idler pulley bracket bolt and adjusting bolt,then remove the air conditioning (A,/C) compressorbelt aDJUsnNG
44 N.m 14.5 kgt.m, 33 lbf.ft)
P/S PUMP LOWER ARACKET
a\
4. Loosen the mounting nut and lock bolt, then removethe alternator belt.
LOCK BOLT8 x 1.25 mm24 N.m {2.4 kgt.m.17 rb{.ftl
5. Remove the upper bracket (see page 6-69).
NOTE:
. Use a jack to support the engine before removingthe upper bracket.
o Place a cushion between the oil pan and the jack.
Remove the P/S pump lower bracket
8 x 1.25 mm24 N.m 12.,1 kgf.m,17 tbf.ftl
l0 x 1.25 mm
'-f'
MOUNTING10 x 1.25 mm44 N.m (4.5 kgf.m.33 rbf.fttBELT
HEAT SHIELD

7.
8.
Remove the crankshaft pulley (see page 6-59).
Remove the cylinder head cover'
NOTE: Refer to page 6-86 when installing the cylin-
der head cover.
Remove the middle cover and lower cover.
NOTE: Do not use the middle and lower covers for
storing removed items.
MIDDLE COVER
LOWER COVER
9.
10.Loosen the adjusting bolt 180'.
to remove tension from the
retighten the adjusting bolt.
9.8 N.m lt.o kgf m,
7.2lw'ftl
Push the tensioner
timing belt, then
N.m (5.5 kgt'm,
1 1. Remove the timing belt.
TDC
lnstallation
Install the timing belt in the reverse order of removal;
Only key points are described here.
1. Set the timing belt drive pulley so that the No. 1 pis'
ton is at top dead center (TDC). Align the groove on
the timing belt drive pulley to the V pointer on the
oil pumP.
set the camshaft pulleys so that the No. 1 piston is at
TDC.
Align the TDC marks on the intake and exhaust cam-
shaft pulleys.
MARK
(cont'd)
6-63
POINTER

Timing Belt
lnstallation (cont'dl
3. Install the timing belt tightly in the sequence shown.
@ Timing belt drive pulley (crankshaft) + @Adjusting pulley * @ Water pump pu ey + @ Intakecamshaft pulley + @ Exhaust camshaft pulley,
NOTE: Make sure the timing belt drive pulley andcamshaft pullevs are at TDC,
Loosen and retighten the adjusting bolt to tensionthe timing belt.
Install the lower cover and middle cover.
NOTE: Clean the middle and lower covers beforeinstalling.
Install the crankshaft pulley, then tighten the pulleybolt (see page 459).
Rotate the crankshaft pulley about five or six turnscounterclockwise so that the timing belt positions onthe pulleys.
Adjust the timing belt tension (see page A611.
7.
6-64
a
9. Check that the crankshaft pulley and camshaft pul-leys are both at TDC.
CRANKSHAFT PULLEY
CAMSHAFT PULLEY:
lf the camshaft and crankshaft pulleys are not posi-tioned at TDC, remove the timing belt, adjust theposition following the procedure on page &63, thenreinstall the timing belt.
After installation, adjust the tension of each belt.
. See section 23 for alternator belt tension adjust-ment.
. See section 22lor NC compressor belt tensionadiustment,
. See section 17 for P/S pump belt tension adjust-ment.
'l
10.
11.
I
"UP" MARKS

Removal
Engine removal is not required for this procedure.
!@@ Make sure jacks and safety stands are placed
properly and hoist brackels are attached to correst posi-
tion on the engine,
CAUTION:
o Use fender covers to avoid damaging painted sur-
faces.
To avoid damage, unplug the wiling connectors
carelully while holding the connector portion.
To avoid damaging the cylinder head, wait until the
engine coolant temperature drops below 100"F {38'Cl
before loosening the retaining bolt.
NOTE:
. Unspecified items are common.
. Mark all wiring and hoses to avoid misconnection.
AIso, be sure that they do not contact other wiring or
hoses or interfere with other parts.
o Inspect the timing belt before removing the cylinder
n eao.
. Turn the crankshaft pulley so that the No. 1 piston is
at top dead center (see page 6-64).
1. Disconnect the negative terminal from the battery.
Drain the engine coolant {see page 10-7).
. Remove the radiator cap to speed draining.
Remove the strut brace (see page 5-2).
Remove the intake air duct and air cleaner housing
(see page 5-3).
Remove the adjusting bolt and mounting bolt, then
remove the power steering (P/S) pump belt and pump
(see page 5 5).
2.
3.
4.
\
ADJUSTING
6. Loosen the idler pulley bracket bolt and adjusting
bolt, then remove the air conditioning (A/C) com-
pressor belt.
IDLER PULLEY BRACKETBOLT10 x 1.25 mm44 N.m {4.5 kg,l.m, 33 lbt.ft}
7. Loosen the mounting nut and lock bolt, then remove
the alternator belt.
LOCK BOLT8 x 1.25 mm24 N.m {2.4 kgf.m,17 tbtftl
ALTERNATORBELT10 x 1.25 mm,l,l N.m {4.5 kgf.m,33 tbf.ft,
(cont'd)
6-67

Cylinder Head
Removal (cont'd)
8. Remove the P/S pump lower bracket.
8 x 1.25 mm24 N.m 12.4 kgf.m,17 tbtftl
9.
T SHIELD
10.
P/S PUMP LOWERBRACKET10 x 1.25 mm44 N.m {4.5 kgf.m,33 tbf.frl
Relieve fuel pressure (see section l1).
@ Do not smok6 while working on fuel
system, keep open flam€ or spark away lrom work
ar€a, Drain fuelonly into an approved cortain€r.
Remove the evaporative emission (EVAP) control
canister hose, fuel feed hose and breather hose.
BANJO BOLT33 N.m (3.4 kgl.m.25 lbf.ftl
BREATHERHOSE
WASHERS
6-68
\.
11. Remove the brake booster vacuum hose, fuel return
hose and vacuum hose (see page 5 4).
12. Remove the water bypass hose and positive crankcase
ventilation (PCV) hose.
WATER BYPASSHOSEWATER EYPASSHOSE
Remove the throttle cable and throttle control cable
by loosening the locknut, then slip the cable end out
of the throftle linkage.
NOTE;
. Take care not to bend the cables when removing
them. Always replace any kinked cable with a new
one.
. Adjust the throttle cable when installing (see sec-
tion I I ),. Adjust the throttle control cable when installing(see section 14).
CONTROLCABLE
1a
PCV HOSE

I
Cylinder Head
Installation
lnstall the 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 carenot to bend it.
. Rotate the crankshaft, set the No. 1 piston at TDC (seepage 6-63).
. Do not use the middle cover and lower cover forstorang removed items.. Clean the middle cover and lower cover before instal_lation.
o Replace any washers that are damaged or deteriorated.
1. Install the cylinder head gasket, dowel pins and thehead oil control orifice on the cylinder head.
NOTE: Clean the oil control orifice when installing.
DOWEL PIN
6-84
2, Tighten the cylinder head bolts in two steps. In thefirst step, tighten all bolts in sequence to about 29N.m (3.0 kgf.m, 22 tbf.ftl. ln the final step, tighten inthe same sequence to 83 N.m (8.S kgf.m,6t lbf.ft).
NOTE:
. Apply clean engine oil to the bolt threads andunder the bolt head.. We recommend using a beam-type torquewrench. When using a preset-type torque wrench,be sure to tighten slowly and not to overtighten.. lf a bolt makes any noise while you are torquing it,loosen the bolt, and retighten it from the 1st step.
CYLINDER HEAD BOLT TOROUE SEOUENCE
11x 1.5 mm83 N.m 18.5 kgf.m, 61 tbf.ftl
Install the intake manifold and tighten the nuts in acflsscross pattern in two or three steps, beginningwith the inner nuts.. Always use a new intake manifold gasket.
Install the exhaust manifold and tighten the newself-locking nuts in a crisscross pattern in two orthree steps. beginning with the inner nuts.. Always use a new exhaust manifold gasket.
4.

Engine Block
Speciaf Tools ..........." 7-2
lllustlated Index ...................."..'.......... 7-3
Flywheel and Drive Plate
Repf acement """'.' 7-7
Connecting Rod and Crankshaft
End Play ..........."....7-8
Main Bearings
Clearance ............... 7-9
Selection ................7-10
Connecting Rod Bearings
clearance ....'.......... 7-11
Selection ................ 7-11
Pistons and Crankshaft
Removaf ................. 7 -12
Crankshaft
Inspection ."".........7-14
Pistons
Inspection ......"'.....7-15
fnstaffation .............7-23
Cylinder Block
lnspec'tion ..............7-16
Bore Honing ..........7-17
Piston Pins
Removal ...,...........'.7-17
lnstallation .............7-18
Inspection .'............7-19
Connecting Rods
Selection ................7-18
Piston Rings
End Gap ..........".."' 7'2O
Repfacement .........7-2O
Ring-to-Groove Clearance ...........'.'. 7 -21
Afignment .......""'.. 7'21
Crankshaft Oil Seal
fnstaffation .............7-22
Crankshaft
fnstaffation ..-.-..'.".' 7'23
Oil Pan
lnstallation .............7-26
Oil Seals
fnstaffation ....""""' 7-29
r-f

lllustrated Index
I runricate att internal parts with engine oil during reassembly'
NOTE:
o Apply liquid gaskettothe mating surfaces ofthe right side cover and oil pumpcase before installingthem'
. Use liquid gasket, part No 08718-0001 or08718-0003'
. Clean the oil pan gasket mating surfaces betore installing the oil pan
81642 engine:
DRAIN BOLT44 N,m {4.5 kgf'm,33 lbt'ft)
6 x 1.0 mm'11 N.m (1.1 kgI'm,
I tbl.ft)
OIL PANReter to page 7 27when installing.
6 r 1.O mm12 N.m t1.2 kgl'm, 8 7 lbf'lt)
OIL PAN GASKET
BUFFLE PLA
12 x 1.0 mm103 N.m {10.5 kgf'm,
76 tbr.ft)
6 x 1.0 mm11 N.m (1 .1 kgf.m,
8 tbI.fr)
GASKETReplace.FLYWHEEL(M/TI
12 x 1.0 mm
74 N.m (7.5
kof.m, 54 lbf'ft)
1^c{Eb\%^ t*^
*o"rr^--(Wffi
oa*,trto2,.w
FLYWHEEL COVER
IM/T)
DRIVE PLATECOVER (AiT)
11 x 1.5 mm76 N.m (7.9 kgf'm, 56 lbf'ft)
Apply engine oil to the bolt
threads.NOTE: After torqurngeach cap, turn crankshaft
to check for binding.
MAIN EEARING CAP
MAIN BEARINGSSelection, page 7_10
NOTE: New main bearings musl
be selected bY matching crank
and block identification markrngs
CRANKSHAFTInstallation, Page 7'23
OIL JET BOLT16 N.m 11.6 kgf'm, 12 lbl'ft)
OIL JETInspection, Page 8_10
Check for cracks
6x1.0mm11 N.m {1.1 kgf'm, I lbf'ft}
CRANKSHAFT OIL SEAL
Installation,pagesl 22 andl 29
Replace-
DOWEL PINOIL PUMPOverhaul, page 8-'l1Removal/lnspection,page 8-13.Apply liquid gasket
to mating surlace.RIGHT SIDE COVERApply liquid gasket
to mating surface.
THRUST WASHERS8 x 1.25 mm24 N.m {2.4 kgf.m, 17 lbf'ft)Grooved sides face outward
NOTE: Thrusr washer thickness
is tixed and must not be changed
by grinding or shimming
O-RINGReplace
CRANKSHAFT SEAL11 N.m {1.1 kgf'm, lnstallation, pages 7'29 and I 14
a lbt.ltl Heplace. (cont'd)
d#*

lllustrated Index
(cont'dl
I Luoricate att internal parts with engine oil during reassembly.
NOTE:
' Apply liquid gasket to the mating surfaces ofthe rightside coverand oil pumpcase before installingthem.. Use liquid gasket, part No. 08718 - 0001 or 087,18 _ OOO3.. Clean the oil pan gasket mating surfaces before installing it.
D16Y7 engine:6 x 1.0 mm12 N.m (1.2 kgt.m.8.7 tbf.tr)DRAIN BOLT44 N.m {4.5 kgt.m.33 tbt.ttl
,(
I
I
OIL PAN GASKETFLYWHEEL COVERIM/T)6x 1.0 mm12 N.m ('l .2 kgt.m, 8.7 tbt.trl
OIL PANRefer to page 7-27
Apply liquid gasker tothese points.
Replace.
WASHERReplace.12 x '1.0 mm118 N.m{12.0 kgt.m, 87 tbf.tr}
11 x 1.5 mm51 N.m15.2 kgl.m,38lbtftl
Apply engine oilto the boltthreads.NOTE: After torquingeach cap, turn the crankshaftto check for binding.
MAIN BEARINGSSelection, page 7-10
MAIN BEARING CAP
CRANKSHAFTInstallation, page 7 23
NOTE: New main bearings mustbe selected by matching crankand block identification markings.
6 r 1.0 mm11 N.m {1.1
6 x 1.0 mm11 N.m 11.1
ksI.m, 8 lbt.ft)
OIL SCREEN
kgt.m, 8 lbf.trl
Check for cracks.
CRANKSHAFT OIL SEALInstallation,pages 1 22 a^d 7-29
\:eprace'
GASKETReplace.
6 x 1.O mm11 N.m {1.1 kgt.m,8 rbt.frl
RIGHT SIDE COVERApply liquid gasker1o matrng surface,
OIL PUMPOverhaul, page 8-12Bemoval/lnspection,page 8-13
DOWEL PIN
WASHERSGrooved sides face outward.NOTE: Thrust washer thicknessis fixed and must not be changedby grinding or shimming.
CRANKSHAFT SEAL
l.j"Ji:l"^ pages z.2e --.S)
Replace.
6 x 1.0 mm11 N.m {1.18 tbt.fr)
7-4
BREATHING PORT COVERMOUNT BOLTS6 x 1.0 mm11 N.m {1.1 kgt.m, 8 tbf.fr}Apply liquid gasker tothe boh threads.
DOWEL PIN