HONDA CIVIC 2000 6.G Workshop 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

Cylinder Head
lllustrated Index
CAUTION:
. To avoid damaging the cylinder head, wait until the engine coolant tempsraturo drops below 100"F (38"C1 bofote
removing it,
. when handling a metal gasket, take caro not to fold the gaskot or damage the contact surface of the gasket.
NOTE: Use new O-rings and gaskets when reassembling.
CYLINDER HEAO
PLUGReplace.
)@
DISTRIBUTOR
8 x 1 ,25 mm
27 N.m P.E kgl m.
20 tbf.foApply engine oil to
the threads.
cr.rMp.S
CAMSHAFT A"o''*t*'; wes@
OIL SEALReplace.
6 x l,omm9.8 N'm tl.0 kgt'm,7.2lbf ft)
RUBBER SEALReplace when damaged
or detedorated.
6x1.0mm9.8 N.m (1.0 kgf'm,
7.2 rbnftl
fi%
IGNMONWIRE COVER
CYLINOER HEAD
COVERRefer to page 6-86
when installing
HEAD COVER GASKETReplace when leaking, damaged
or deteriorated.Apply liquid gasket at thecorners of the recesses, Page 6-86
8 x 1,25 mm24 N.m {2.4 kgf'm,
1? tbf.ftl
EXHAUST
10 x 1.25 mm56 N.m (5.7 kgf m,,r1 lbl.ft)
(cont'd)
6-65

Cylinder Head
lllustrated Index (cont'dl
CYLINDER HEADBOLTS11 x 1.5 mm83 N.m {8.5 kg{.m, 61Apply engine oilto threads.
INTAKE VALVE SPRING INNER
VALVE KEEPERS
SPRING RETAINER
INTAKE VAI.VE SPRING OUTER
valvEKEEPEBS\:""j"*'
SPRING RETAINER
EXHAUST VALVESPRING
VALVE SEALReplace.
VALVE
LOST MOTIONASSEMBLY
EXHAUST VAL
VALVE SEALReplace.
SPRING SEAT
VALVE GUIDE
INTAKE VALVE
ROCKER SHAFT
SEALING AOLTS.20 mm64 N.m (6.5 kgt.m, 47 tbf.ft)
t
il
HEAO OIL CONTROLORIFICEClea n.
a
6-66

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

WATER BYPASS
HOSE
14. Remove the upper radiator hose, heater hose and
water bvpass hose.
HEATER
Remove the engine wire harness connectors and wlre
harness clamps from the cylinder head and the intake
manifold.
Four fuel injector connector
Engine coolant temperature (ECT) sensor connec-
tor
ECT gauge sending unit connector
ECT switch connector
ldle air control (lAC) valve connector
Manifold absolute pressure (MAP) sensor connec-
tor
Throttle position sensor connector
Primary Heated oxygen sensor (Primary HO2S)
connecror
VTEC solenoid valve connector
15.
a
a
a
a
a
\
16.
17.
Remove the spark plug caps and distributor form
the cylinder head.
Remove the upper bracket.
NOTE:
. Use a jack to support the engine before removing
the upp€r bracket is removed.
. Place a cushion between the oil panandthejack.
12 x 1.25 fin74 N.m 17.5 kgtm,
UPPER BRACKET
18. Remove the cylinder head cover.
{cont'd)
6-69

Cylinder Head
19.
20.
Removal (cont'dl
Remove the timing belt {see page 6-62).
Remove the back cover and camshaft pulleys.
BACK COVER
56 N.m (5.7 kgf m,
41 tbt.f06xl.0mm9.8 N,m (1.0 kgf.m, 7.2 lbf.ft)
21, Remove the exhaust manifold (see page 9-8).
22. Remove the intake manifold (see page g-5).
23. Loosen the adjusting screws.
INTAKE
No.4 No.3 No.2 No. 1
6-70
24. Remove the camshaft holder plates, camshaft hold-ers and camshafts.
CAMSHAFTHOLDER PLATE
Remove the cylinder head bolts, then remove the
cylinder head.
CAUTION: To prevsnt warpage. unscrew the bolts
in sequonc€ 1/3 turn at a tim€; lepeat lh6 sequence
until all bolts aro loosened.
CYLINDER HEAD BOLTS LOOSENING SEOUENCE:
CYLINDER HEADPLUGReplace. t
\1
\€\i
b4CAMSIIAFTS -