HONDA CIVIC 2003 7.G Manual Online

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 Removal (cont'dl
14. Remove the clutch slave cylinder {A) andclutchline
bracket mounting bolt (B).
15. Remove the shift cable (A) and select cable (B).
5-4
..4,
16. Disconnect the engine control module (ECM)
connectors (A) and main wire harness connector(B).
Remove the harness clamps (A) and grommet (B),
then pullthe engine wire harness through the
bulkhead.
't7 .
\l,

18.
19.
Remove the drive belt (see page 4-26).
Remove the lvC line mounting bolt.
20. Remove the radiator cap.
21. Raise the hoist to full height.
22. Remove the front tires/wheels.
23. Remove the splash shield.
o@
24. Loosen the drain plug in the radiatorto drain the
engine coolant (see page 10-6).
25. Drain the transmission fluid (see page 13'3).
26. Drain the engine oil {see page 8-5).
27. Disconnect the stabilizer links (see page 18-18).
28. Disconnect the suspension lower arm ball joints
(see step 3 on page 18-19).
29. Remove the driveshafts {see page 16-3). Coat all
precision finished surfaces with clean engine oil.
Tie plastic bags over the driveshaft ends.
30. Disconnect the air fuel ratio {4,/F) sensor connector
(A) and secondary heated oxygen sensor
(secondary HO2S) connector (B), then remove the
three way catalytic converter {TWC) assembly {C).
31. Remove the lower hose.
(cont'd)
5-5

Engine Assembly
Engine Removal (cont'd)
32. Lower the hoist.
33. Remove the upper hose (A)and heater hoses (B).
34. Bemove the radiator (see page 10-10).
35. Attach the chain hoist to the engine as shown.
5-6
36. Remove the transmission mount bracket support
bolt and nuts.
37. Remove the upper bracket mounting bolt and nut.
(.g
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39.
Make sure the hoist brackets are positioned
properly. Raise the hoist to full height.
Remove the rear mount mounting bolts.
40. Remove the front mount bracket mountinq bolt.
41. Attach the subframe adapterto front ofthe
subframe, then tighten the knurled knob.
Raise the jack. Line up the slots in the arms with the
bolt holes on the corner of the jack base, then
attach the adaDter to the iack base with the bolts.
(cont'd)
5-7

Engine Assembly
Engine Removal (cont'd)
43. Use a marker to make alignment marks on the
reference lines (A) that align with the centers of the
rear subframe mounting bolts (B).
, !:_- _l.= :r -- ---.-','- -
44. Remove the front subframe (C).
5-8
ffi4
ffit'"
45. Disconnect the compressor clutch connector (A),
then remove the Ay'C compressor (B)without
disconnecting the A'./C hoses.
Check that the engine/transmission is completely
free of vacuum hoses, fuel and coolant hoses, and
electrical wiring.
Slowly lower the engine about 150 mm (6 in.).
Check once again that all hoses and wires are
disconnected trom the engine/transmission.
Lower the engine all the way. Remove the chain
hoist from the engine.
Remove the engine from under the vehicle.
46.
47.
48.
49.

Engine lnstallation
Special Tools Required
Front subframe adapter EOS02C00001 1
1. lnstallthe accessory brackets, and tighten their bolts and nuts to the specified torques.
10 x 1.25 mmil4 N.m {4.5 kgf.m,33lbl.ft)
A/C COMPRESSOR BRACKET
10 x 1 ,25 mm44 N.m {4.5 kgf.m,33lbt.ft)
(cont'dl
ENGINE MOUNT BRACKET
5-9

Engine Assembly
Engine Installation (cont'd)
Position lhe engine under the vehicle. Attach the
chain hoist to the engine, then lift the engine intoposition in the vehicle.
Reinstallthe mounting bolts/support nuts in
the sequence given. Failure to follow this
sequence may cause excessive noise and
vibration, and reduce bushing life.
3. Install the A,/C compressor (A), and connect the
compressor clutch connector {B).
8 x 1.25 mm22 N.m 12.2 kgf m. 16 lbf.ft)
4. Support the subframe with the subframe adapter
and a jack.
6r"
6-_-'-
5-10
- - -.'.: - --=---=-- .-€..'tt-
---:--
5. Install the subframe (A). Align the reference marks(B) on the subframe with the center of the bolt
heads, then tighten the bolts.
14x 1.5 mm103Nm{10,5 kgf m.76 rbt.ftlReplace.
6. Tighten the rear mount mounting bolts.
l0x 1.25 mm59 N.m (6.0 kgf.m, 4:] lbI.ft)
FI