ignition coil DAEWOO LACETTI 2004 Service Repair Manual

1.4L/1.6L DOHC ENGINE MECHANICAL 1C1 – 5
DAEWOO V–121 BL4
FASTENER TIGHTENING SPECIFCATIONS
ApplicationNSmLb–FtLb–In
Air Cleaner Housing Bolts10–89
Camshaft Cap Bolts1612–
Camshaft Cover Nuts10–89
Connecting Rod Bearing Cap Bolts25
+ 30° + 15°18
+ 30° + 15°–
Coolant Temperature Sensor2015–
Crankshaft Bearing Cap Bolts50
+ 45° + 15°37
+ 45°+ 15°–
Crankshaft Cover Nuts5~8–44~71
Crankshaft Pulley Bolt95 NSm
+ 30° + 15°––
Cylinder Head Bolts (Cylinder Head Mounting Bolts)25 + 70°
+ 70° + 50°18 + 70°
+ 70° + 50°–
Direct Ignition System Coil Mounting Bolts10–89
Direct Ignition System Coil Mounting Bracket Bolts10–89
Engine Mount Attaching Bolts3022–
Engine Mount Bracket Attaching Bolts/Nuts5037–
Exhaust Camshaft Gear Bolt67.549–
Exhaust Flex Pipe–to–Catalytic Converter or Connecting Pipe
Retaining Nut3526–
Exhaust Flex Pipe–to–Exhaust Manifold Retaining Nuts3526–
Exhaust Gas Recirculation Valve Adapter Bolts2518–
Exhaust Manifold Heat Shield Bolts1511–
Exhaust Manifold Retaining Nuts2518–
Flexible Plate Bolts6044–
Flexible Plate Inspection Cover Bolts10–89
Flywheel Bolts35
+ 30° + 15°25
+ 30° + 15°–
Flywheel Inspection Cover Bolts12–106
Front Timing Belt Cover Bolts (Upper and Lower)10–89
Fuel Rail Assembly Retaining Bolts2518–
Fuel Rail Retaining Bolts2518–
Generator Upper Retaining Bolt2015–
Intake Camshaft Gear Bolt67.549–
Intake Manifold Retaining Bolts/Nuts2518–
Intake Manifold Support Bracket Lower Bolt2518–
Intake Manifold Support Bracket Upper Bolts2518–
Lower Front Timing Belt Cover Bolts10–89
Oil Pan Flange Bolts7555–
Oil Pan Retaining Bolts10–89
Oil Pan Drain Plug3526–
OIl Pressure Switch4030–

1.4L/1.6L DOHC ENGINE MECHANICAL 1C1 – 23
DAEWOO V–121 BL4
12. Remove the all the vaccum hoses from the intake
manifold including brake booster vaccum hose.
13. Remove the ignition cables from the spark plugs.
14. Remove the direct ignition coil(DIS) and the bracket
from the cylinder head.
15. Remove the serpentine accessory drive belt by ro-
tating the tensioner pulley bolt to clockwise using
DW110–080. Refer to Section 6B, Power Steering
Pump.
16. Remove the front passenger side tire. Refer to Sec-
tion 2E, Tires and Wheels.
17. Remove front wheel housing shield.
18. Remove the upper front timing belt cover bolts.
19. Remove the upper front timing belt cover.
20. Align the camshaft gear timing marks.
21. Remove the crank shaft pulley.
22. Remove the lower front timing belt cover bolts and
cover.

1C1 – 48I1.4L/1.6L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
5. Install the timing belt automatic tensioner.
6. Install the timing belt automatic tensioner bolts.
Tighten
Tighten the timing belt automatic tensioner bolts to 25
NSm (18 lb–ft).
7. Install the crankshaft gear.
Notice : Take extreme care to prevent any scratches,
nicks or damage to the camshafts.
8. Install the camshaft gears. Refer to ”Camshaft
Gears” in this section.
9. Install the timing belt and timing belt cover. Refer to
”Timing Belt” in this section.
ENGINE
Removal Procedure
1. Remove the fuel pump fuse.
2. Start the engine. After it stalls, crank the engine for
10 seconds to rid the fuel system of fuel pressure.
3. Remove the hood. Refer to Section 9R, Body Front
End.
4. Drain the engine oil.
5. Disconnect the negative battery cable.
6. Remove the air cleaner outlet hose from the throttle
body and air cleaner housing.
7. Disconnect the breather tubes from the camshaft
cover.
8. Remove the serpentine accessory drive belt. Refer
to Section 6B, Power Steering Pump.
9. Remove the right front wheel. Refer to Section 2E,
Tires and Wheels.
10. Remove the right front wheel well splash shield.
11. Drain the engine coolant. Refer to Section 1D, En-
gine Cooling.
12. Remove the cooling system radiator and the engine
cooling fans. Refer to Section 1D, Engine Cooling.
13. Disconnect the upper radiator hose from the ther-
mostat housing.
14. Disconnect the power steering return hose from the
power steering pump. Refer to Section 6A, Power
Steering System.
15. Disconnect the power steering pressure hose from
the power steering pump. Refer to Section 6A,
Power Steering System.
16. Disconnect the electrical connector at the direct
ignition system (DIS) coil and the electronic control
module (ECM) ground terminal at the intake man-
ifold and at the starter motor.

1.4L/1.6L DOHC ENGINE MECHANICAL 1C1 – 59
DAEWOO V–121 BL4
15. Remove the direct ignition system (DIS) coil mount-
ing bolts.
16. Remove the DIS coil with the ignition wires at-
tached.
17. Remove the DIS coil mounting bracket bolts.
18. Remove the DIS coil mounting bracket.
19. Remove the electrical exhaust gas recirculation
(EEGR) valve adapter bolts.
20. Remove the EEGR valve adapter.
21. Remove the EEGR valve adapter gasket.
22. Remove the spark plugs.
23. Remove the camshaft cap bolts gradually and in
the sequence shown for each camshaft cap.
24. Remove the intake camshaft caps. Maintain the
correct positions for installation.
25. Remove the intake camshaft.
26. Remove the intake valve tappet adjusters.
27. Remove the exhaust camshaft caps. Maintain the
correct positions for installation.
28. Remove the exhaust camshaft.
29. Remove the exhaust valve tappet adjusters.
30. Compress the valve springs with the valve spring
compressor KM–348 and the adapter KM–653.
31. Remove the valve keys.
32. Remove the valve spring compressor KM–348 and
the adapter KM–653.
33. Remove the valve spring caps.
34. Remove the valve springs. Maintain the original
position of the valve springs for installation.

1C1 – 64I1.4L/1.6L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
11. Install the intake camshaft.
12. Install the intake camshaft caps in their original
positions.
13. Install the exhaust camshaft.
14. Install the exhaust camshaft caps in their original
positions.
15. Install the camshaft cap bolts.
16. Tighten the camshaft cap bolts gradually and in the
sequence shown for each camshaft cap.
Tighten
Tighten the camshaft cap bolts to 16 NSm (12 lb–ft).
17. Install the spark plugs.
Tighten
Tighten the spark plugs to 25 NSm (18 lb–ft).
18. Install the EGR valve adapter gasket.
19. Install the EGR valve adapter.
20. Install the EGR valve adapter bolts.
Tighten
Tighten the exhaust gas recirculation valve adapter
bolts to 25 NSm (18 lb–ft).
21. Install the DIS coil mounting bracket.
22. Install the DIS coil mounting bracket bolts.
Tighten
Tighten the direct ignition system coil mounting brack-
et bolts to 10 NSm (89 lb–in).
23. Install the DIS coil with the ignition wires attached.
24. Install the DIS coil mounting bolts.
Tighten
Tighten the direct ignition system coil mounting bolts
to 10 NSm (89 lb–in).
25. Install the intake manifold studs.
26. Install the intake manifold.
27. Install the intake manifold retaining nuts and retain-
ing bolts in the sequence shown.
Tighten
Tighten the intake manifold retaining nuts and retain-
ing bolts to 25 NSm (18 lb–ft).

1C2 – 4I1.8L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
FASTENER TIGHTENING SPECIFCATIONS
ApplicationNSmLb–FtLb–In
Air Cleaner Housing Bolts10–89
Automatic Tensioner Bolt2518–
Camshaft Bearing Bridge and Oil Pan Scraper Bolts20 + 45°15 + 45°–
Camshaft Bearing Cap Bolts8–71
Camshaft Cover Bolts8–71
Charcoal Canister Purge and Exhaust Gas Recirculation Sole-
noid Bracket Bolt5–44
Connecting Rod Bearing Cap Bolts35
+ 45° + 15°26
+ 45° + 15°–
Coolant Bypass Housing and Mounting Bolts1511–
Crankshaft Bearing Cap Bolts50
+ 45° + 15°37
+ 45° + 15°–
Crankshaft Pulley Bolts2015–
Crankshaft Gear Bolt145
+ 30° + 15°107
+ 30° + 15°–
Cylinder Head Bolts25 + 90°
+ 90° + 90°18 + 90°
+ 90° + 90°–
Direct Ignition System Coil and Exhaust Gas Recirculation
Mounting Bracket Bolts2518–
Engine Mount Bracket Retaining Bolts and Nuts5541–
Engine Mount Retaining Bolts4533–
Engine–to–Intake Manifold Support Bracket Bolts2015–
Exhaust Camshaft Gear Bolt50
+ 60° + 15°37
+ 60° + 15°–
Exhaust Flex Pipe–to–Catalytic Converter or Connecting Pipe
Retaining Nuts3526–
Exhaust Flex Pipe–to–Exhaust Manifold Retaining Nuts3526–
Exhaust Manifold Heat Shield Bolts8–71
Exhaust Manifold Retaining Nuts2216–
Flexible Plate Bolts4533–
Flywheel Bolts65
+ 30° + 15°48
+ 30° + 15°–
Front Timing Belt Cover Bolts6–53
Generator–to–Intake Manifold Strap Bracket Bolt2216–
Generator–to–Intake Manifold Support Bracket Bolts3727–
Intake Camshaft Gear Bolt50
+ 60° + 15°37
+ 60° + 15°–
Intake Manifold Retaining Bolt and Nuts2216–
Intake Manifold Support Bracket Lower Bolt2518–
Intake Manifold Support Bracket Upper Bolts2518–
Lower Block Support Bracket and Splash Shield Bolts3526–
Oil Pan Drain Plug3526–
Oil Pan Flange–to–Transaxle Bolts4030–

1C2 – 14I1.8L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
6. Disconnect the manifold air temperature (MAT)
sensor connector.
7. Disconnect the breather tube from the camshaft
cover.
8. Disconnect the air cleaner outlet hose from the
throttle body.
9. Disconnect the direct ignition system (DIS) coil con-
nector.
10. Disconnect the oxygen (O2) sensor connector, if
equipped.
11. Disconnect the idle air control (IAC) valve connec-
tor.
12. Disconnect the throttle position sensor (TPS) con-
nector.
13. Disconnect the engine coolant temperature (ECT)
sensor connector.
14. Disconnect the coolant temperature sensor (CTS)
connector.
15. Remove the air cleaner housing bolts.
16. Remove the air cleaner housing.
17. Remove the right front wheel. Refer to Section 2E,
Tires and Wheels.
18. Remove the right front wheel well splash shield.
19. Install the engine assembly support fixture
J–28467–B.
20. Remove the right engine mount bracket and bolts.
21. Disconnect the upper radiator hose at the thermo-
stat housing.
22. Remove the serpentine accessory drive belt. Refer
to Section 6B, Power Steering Pump.
23. Remove the crankshaft pulley bolts.
24. Remove the crankshaft pulley.

1C2 – 16I1.8L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
40. Remove the timing belt idler pulley bolt and nut.
41. Remove the timing belt idler pulleys.
42. Remove the engine mount bolts.
43. Remove the engine mount.
44. Remove the rear timing belt cover bolts.
45. Remove the rear timing belt cover.
46. Remove the exhaust flex pipe retaining nuts at the
exhaust manifold studs.
47. Disconnect all of the necessary vacuum hoses.
48. Disconnect the fuel feed line at the fuel rail.
49. Remove the generator adjusting bracket retaining
bolt and the bracket.
50. Disconnect the coolant hose at the rear cylinder
head and ignition coil exhaust gas recirculation
(EGR) bracket.
51. Disconnect the surge tank coolant hose at the
throttle body.
52. Remove the fuel rail assembly. Refer to Section 1F,
Engine Controls.

1C2 – 18I1.8L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
Tighten
Tighten the cylinder head bolts to 25 NSm (18 lb–ft)
and turn the bolts another 3 turns of 90 degrees using
the angular torque gauge KM–470–B.
5. Connect the throttle cable at the throttle body and
the intake manifold.
6. Install the generator–to–intake manifold support
bracket.
7. Install the intake generator–to–manifold support
bracket bolts.
Tighten
Tighten the generator–to–intake manifold support
bracket bolts to the intake manifold to 37 NSm (27 lb–
ft).
8. Install the intake manifold support bracket bolt to
the generator.
Tighten
Tighten the generator–to–intake manifold support
bracket bolt at the generator to 22 NSm (16 lb–ft).
9. Connect the surge tank coolant hose at the throttle
body.
10. Connect the coolant hose to the rear cylinder head
and ignition coil EGR bracket.
11. Connect the fuel feed line at the fuel rail.
12. Connect the fuel return line at the fuel rail.
13. Connect all of the necessary vacuum hoses.
14. Install the fuel rail assembly. Refer to Section 1F,
Engine Controls.

1C2 – 22I1.8L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
56. Connect the CTS connector.
57. Connect the engine CTS connector.
58. Connect the IAC valve connector.
59. Connect the TPS connector.
60. Install the CCP and the EGR solenoid bracket bolt.
Tighten
Tighten the charcoal canister purge and exhaust gas
recirculation solenoid bracket bolt to 5 NSm (44 lb–in).
61. Connect the DIS coil connector.
62. Connect the O2 sensor connector, if equipped.
63. Connect the ECM ground terminal.
64. Install the fuel pump fuse.
65. Connect the negative battery ground cable.
66. Refill the engine cooling system. Refer to Section
1D, Engine Cooling.
CAMSHAFTS
Removal Procedure
1. Remove the timing belt. Refer to ”Timing Belt” in
this section.
2. Disconnect the breather tube at the camshaft cov-
er.
3. Disconnect the engine ventilation hose at the cam-
shaft cover.
4. Remove the spark plug cover bolts.
5. Remove the spark plug cover.
6. Disconnect the ignition wires from the spark plugs.
7. Remove the camshaft cover bolts.
8. Remove the camshaft cover washers.
9. Remove the camshaft cover and the camshaft cov-
er gasket.
Notice : Take extreme care to prevent any scratches,
nicks or damage to the camshafts.
10. While holding the intake camshaft firmly in place,
remove the intake camshaft gear bolt.
11. Remove the intake camshaft gear.
12. While holding the exhaust camshaft firmly in place,
remove the exhaust camshaft gear bolt.
13. Remove the exhaust camshaft gear.