2003 HONDA CIVIC INTAKE

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ItemMeasur6mentOualificationStandard or NewService Limit
HeadWarpage0.05 mm {0.002 in.)
Height'103.95 104.05 mm
(4.093 4.096 in.)
CamshaftEnd play0.05 0.20 mm (0.002 0.008 in.)0.4 mm (0.02 in.)
Camshaft to holder oil clearanceNo.l journal0.030 0.069 mm
{0.001 0.003 in.)
0.15 mm {0.006 in.)
No.2,3, 4,5
journals
0.060 0.099 mm
(0.002- 0.004 in.)
0.15 mm (0.006 in.)
Total runout0.03 mrn (0.001 in.) max.0.04 mm {0.002 in.)
Cam lobe heightIntake, primary33.925 mm (1.3356 in.)
Intake,29.638 mm (l.1668 in.)
Exhaust34.092 mm (1.3422 in.)
clearance (cold)lntake0.21 0.2s mm 10.008 0.010 in.)
Exhaust0.28 0.32 mm (0.011 0.013 in.)
Stem O.D-lnlaKe5.475 5.485 mm 10.2156 0.2159 in.)5.445 mm (0.214 in.)
Exhaust5.450 5.460 mm (0.2146 0.2150 in )5.42 mm (0.213 in.)
Stem-to-gLride clearancelntake0.030 0.055 mm (0.0012 0.0022in.|0.08 mm (0.003 in.)
Exhaust0.055 0.080 mm (0.0022 0.0031 in )0.11 mm (0.004 in.)
lntake1.25 1.55 mm (0.049 0.061 in.)2.00 mm {0.079 in.)
Exhaust1.25 1.55 mm (0.049 0.061 in.)2.00 mm {0.079 in.)
stem installed heightlntake40.8- 41.0 mm (1.606 1.614in.)
Exhaust54.6 54.8 mm (2.150 2.157 in.)
Valve springsFree lengthlntake47.61 mm (1.874 in.)
Exhaust49.64 mm (1.954 in.)
Valve guidesLD.Intake5.515 5.530 mm
|.0.2171 0.2117 4n.1
5.55 mm (0.219 in.)
Exhaust5.515 5.530 mm
\0.2111 0.2177 in.l
5.55 mm {0.219 in.)
Installed heightlntaKe15.2 "16.2 mm (0.598 0.638in.)
Exhaust15.5 16.5 mm (0.610 0.650 in.)
Rocker armsArm-to-shaft clearancelntaKe0.025 0.052 mm
(0.00'10 0.0020 in.)
0.08 mm (0.003 in.)
Exhaust0.018 0.056 mm
(0.0007 0.0022 in.)
0.08 mm (0.003 in.)

Maintenance Schedule
Listed by Distance/Time for Normal Conditions
This two page l/lanitenance Schedule outlines the minimun required maintenance. Service at the indicated distance or time, whichever comesfirst. use the lvlaintenance Schedule for Severe conditions if the vehicle meets any of the qualifiers in the Severe Conditions schedule or if thevehicle is normally driven in Canada.
Inspect valve clearance. (cold) (see page 6-321r Intake: 0.21-0.25 mm (0.008 0.010 in.) Exhaust: 0.28 0.32 mm (0.011 0.013 in.)Replace spark plugs. Use IZFR6K'11 (NGK) or SKJ20DR-M11 (DENSO).1.0 1.1 mm
! Do items in A,B, alqq.,
120,000 mi/ 192,000 km/ 6 yearsI Replace transmission fluid.Use Honda MTF (see page 13-3).
/ / Y vcdrs120,000 mil 192,000Beplace coolant (see page 10 6). Capacity: 5.0 0 (5.3 US qt). Use Honda All Season Antifreeze/Coolant Type 2.
According to state and lederal regulations, tailure to do the maintenance items marked with an asterisk {*) will not void the customer'semissions warranties, However, Honda recommends that all maintenance services be done at the recommended interval to ensure long-termreliability.
I
3-4

Starter Replacement
1. Make sure you have the anti-theft code for the radio.
then write down the frequencies for the radio's
preset buttons.
2. Disconnect the negative cable from the battery first,
then disconnect the positive cable.
3. Disconnect the knock sensor connector.
4. Remove the bolt (A) securing the harness bracket,
then remove the intake manifold bracket (B).
A6x1,0mm12 N.m {1.2 kgf.m,8.7 tbt.ft)
8 x 1.25 mm22 N,m 12.2 kgt.m,16 rbf.ftl
L't2.
4-9
5. Disconnect the starter cable (A)from the B terminal
on the solenoid, then disconnect the BLK,/WHT wire
{B) from the S terminal.
10 x 1.25 mm44 N.m {a.5 kgf.m,33lblft)
8 x 1.25 mm9Nm10.9 kgf.m,7 lbl ft)
7.
9.
'10.
11.
2
S'-12x12smm6ilNm{6.5 kgl m,47lbfft)
Remove the two bolts holding the starter, then
remove the starter.
lnstall the starter in the reverse order of removal.
Make sure the crimped side of the ring terminal (A)
is facing out.
Connect the positive cable and negative cable to
the batterY.
Start the engine to make sure the starter operates
propeny.
Enter the anti-theft code for the radio, then enter
the customer's radio station presets.
Set the clock.
Perform the engine control module (EcM) idle learn
procedure (see page 1 '1- 139 ).
I

Engine Assembly
I
Engine Removal
Special Tools Required
Front subframe adapter EOS02C00001 1
NOTE:. Use fender covers to avoid damaging painted
surfaces.. To avoid damage, unplug the wiring connectors
carefully while holding the connector portion.. Mark all wiring and hoses to avoid misconnection.
Also, be sure that they do not contact other wiring orhoses, or interfere with other parts.
1. Secure the hood in the wide open position (support
rod in the lower hole).
2. Make sure you have the anti-theft code for the radio,
then write down the frequencies for the radio'spreset buttons.
3. Disconnect the negative cable from the battery first,then disconnect the positive cable.
4. Remove the battery.
5. Remove the intake manifold cover.
II
5-2
\,
6. Disconnectthe intake airtemperature (lAT) sensorconnector (A), remove the breather hose (B) and
vacuum hose (C), then remove the air cleaner
housing cover/intake air duct assemblv (D).
AC
7. Remove the air cleaner housing.

8. Remove the intake air duct.
9. Remove the battery cables {A) fromthe under-hood
fuse/relay box. then remove the harness clamp (B)
and ground cable (C).
10. Fullv ooen the throttle link and cruise control link
by hand, then remove the throttle cable (A) and
cruise control cable (B)from the links. Loosen the
locknuts {C), and remove the cables from the
bracket.
11. Relievefuel pressure (see page 11-144).
12. Remove the fuel line(seepagell-149).
13. Remove the evaporative emission (EVAP) canister
hose {A) and brake booster vacuum hose (B).
(cont'd)
5-3

Engine Assembly
Engine Installation {cont'dl
Install the select cable (A) and shift cable (B) using
the plastic washers (C), washers (D), and new cotter
pins (E).
6x1.0mm9.8 N.m (1.0 kgf.m,7.2 tbl.ftl
Install the clutch slave cylinder (A) and clutch line
bracket mounting bolt (B).
6x1.0mm9.8 N.m{1.0 kgf.m,7.2 tbt.ft)
"-.----->)
"------'6
8 x '1.25 mm24 N.m (2.4 kgl.m,
5-14
37. Installthe battery cables (A) on the under-hood
fuse/relay box, then install the harness clamp (B).
Installthe ground cable (C).
Installthe intake air duct.
6x1.0mm12Nm{1.2kgf.m,8.7 tbf.ft)
39.
\"
\-
a
6x1.0mm12Nm{1.2kgt.m,8.7 rbf.ft)

40. Install the air cleaner housinq.
6x1.0mm12 N m (1.2 kgf.m,8.7 lbt.ft)
Install the air cleaner housing cover (A) and
connect the intake air temperature (lAT) sensor
connector (B),
42. Installthe breather hose (C) and vacuum hose 1D).
41.
43. Installthe intake manifold cover.
6x1.0mm12Nm11.2kgf.m.8.7 tbf.ft)
Installthe battery. Clean the battery posts and
cable terminals with sandpaper, then assemble
them and apply grease to prevent corrosion.
Check that the transmission shifts into gear
smoothly.
Inspect for fuel leaks. Turn the ignition switch ON(ll) {do not operate the starter) so that the fuel pump
runs for about 2 seconds and pressurizes the fuel
line. Repeat this operation two or three times, then
check for fuel leakage at any point in the fuel line.
Refillthe engine with engine oil (see page 8-5).
Refill the transmission with fluid (see page 13-3).
Refill the radiator with engine coolant, and bleed
air from the cooling system with the heater valve
open (see page 10-6).
Perform the engine control module (ECM) idle learnprocedure (see page 11-139).
Inspect the idle speed (see page 1 1-138).
Inspect the ignition timing (see page 4-17).
Check the wheel alignment {see page 18-4).
Enter the anti-theft code for the radio, then enter
the customer's radio station presets.
Set the clock.
YE
44.
41.
]tE
46.
48.
49.
52.
53.
54.
50.
51.
55.
5-15

SPRINGRETAINER
EXHAUST VALVESEAL
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CYLINDER HEADRemoval, page 6'23Inspection, page 6-25Installation, page 6-39
EXHAUST VALVERemoval, page 6-31Installation, page 6-37
INTAKE VALVERemoval, page 6 31Installation, page 6 37
CYLINDER HEADGASKET
,H v .-- spntruc>il( G\-r_
\lg
| | g -/ TNTAKE vALVE
II ^-'-- 9E4LI I U- Replacement, Page 6-31
He,tl E- _-/ |NTAKE VALVEY I 1.- GUIDE
U Replacement, page 6-33
i
HEAT SHIELD
6-5