2004 DAEWOO LACETTI Automatic

1C1 – 24I1.4L/1.6L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
23. Slightly loosen the water pump retaining bolts.
24. Rotate the water pump counterclockwise using the
timing belt adjuster J–42492 to relieve the timing
belt tension.
25. Remove the timing belt.Refer to ”Timing Belt” in
this section.
26. Remove the engine mounting bracket.Refer to ”En-
gine Mount” in this section.
27. Remove the camshaft cover. Refer to ”Camshaft
Cover” in this section.
28. While holding the intake camshaft firmly in place,
remove the intake camshaft gear bolt and gear.
29. While holding the exhaust camshaft firmly in place,
remove the exhaust camshaft gear bolt and gear.
Notice : Take extreme care to prevent any scratches,
nicks or damage to the camshafts.
30. Remove the timing belt automatic tensioner.
31. Remove the timing belt idler pulley.
32. Remove the right engine mount. Refer to ”Engine
Mount” in this section.
33. Remove the rear timing belt cover.

1.4L/1.6L DOHC ENGINE MECHANICAL 1C1 – 27
DAEWOO V–121 BL4
15. Install the timing belt automatic tensioner.
Tighten
Tighten the timing belt automatic tensioner bolts to 25
NSm (18 lb–ft).
16. Install the timing belt idler pulley.
Tighten
Tighten the timing belt idler pulley bolt to 25 NSm(18
lb–ft).
Notice : Take extreme care to prevent any scratches,
nicks or damage to the camshafts.
17. Install the intake/exhaust camshaft gear.
Tighten
Tighten the intake/exhaust camshaft gear bolts to
67.5 NSm (49 lb–ft).
18. Apply a small amount of gasket sealant to the cor-
ners of the front camshaft caps and the top of the
rear camshaft cover–to–cylinder head seal.
19. Install the camshaft cover and the gasket. Refer to
”Camshaft Cover” in this section.
20. Connect the ignition wires to the spark plugs.
21. Install the oil filler cap.
22. Connect the engine ventilation hose to the cam-
shaft cover.
23. Align the timing marks on the camshaft gears.
24. Align the mark on the crank shaft gear with the
notch at the bottom of the rear timing belt cover.

1C1 – 32I1.4L/1.6L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
16. Rotate the crankshaft at least one full turn clock-
wise using the crankshaft pulley bolt.
17. Align the mark on the crankshaft gear with the
notch at the bottom of the rear timing belt cover.
18. Align the camshaft gear timing marks.
19. Slightly loosen the water pump retaining bolts.
20. Rotate the water pump clockwise using the timing
belt adjuster J–42492.
21. Rotate the water pump clockwise until the adjust
arm pointer of the timing belt automatic tensioner is
aligned with the notch in the timing belt automatic
tensioner bracket.
22. Tighten the water pump retaining bolts.
23. Rotate the crankshaft two full turns clockwise using
the crankshaft pulley.
24. Loosen the water pump retaining bolts.

1.4L/1.6L DOHC ENGINE MECHANICAL 1C1 – 33
DAEWOO V–121 BL4
25. Using the timing belt adjuster J–42492, rotate the
water pump until the adjust arm pointer of the tim-
ing belt automatic tensioner is aligned with the
pointer on the timing belt automatic tensioner
bracket.
26. Tighten the water pump retaining bolts.
Tighten
Tighten the water pump retaining bolts to 10 NSm (89
lb–in).
27. Remove the crankshaft pulley bolt.
28. Install the upper and lower front timing belt covers.
29. Install the upper and lower front timing belt cover
bolts.
Tighten
Tighten the front timing belt cover bolts to 10 NSm (89
lb–in).
30. Install the crankshaft pulley.
31. Install the crankshaft pulley bolt.
Tighten
Tighten the crankshaft pulley bolt to 95 NSm (70 lb–ft)
and retighten 30 degrees plus 15 degrees.
32. Install the serpentine accessory drive belt. Refer to
Section 6B, Power Steering Pump.
33. Install the right front wheel well splash shield.
34. Install the right front wheel. Refer to Section 2E,
Tires and Wheels.
35. Install the air cleaner housing.
36. Install the air cleaner housing bolts.
Tighten
Tighten the air cleaner housing bolts to 10 NSm (89 lb–
in).

1C1 – 36I1.4L/1.6L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
Installation Procedure
1. Align the timing mark on the crankshaft gear with
the notch on the bottom of the rear timing belt cov-
er.
2. Align the timing marks on the camshaft gears.
3. Install the timing belt.
4. Install the right engine mount bracket. Refer to ”En-
gine Mount” in this section.
5. Rotate the water pump clockwise using the timing
belt adjuster J–42492.
6. Rotate the water pump clockwise until the adjust
arm pointer of the timing belt automatic tensioner is
aligned with the notch in the timing belt automatic
tensioner bracket.
7. Tighten the water pump retaining bolts.
8. Rotate the crankshaft two full turns clockwise using
the crankshaft pulley bolt.
9. Loosen the water pump retaining bolts.
10. Rotate the water pump until the adjust arm pointer
of the timing belt automatic tensioner is aligned with
the pointer on the timing belt automatic tensioner
bracket.

1C1 – 46I1.4L/1.6L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
3. Install the exhaust camshaft gear.
4. While holding the exhaust camshaft firmly in place,
install the exhaust camshaft gear bolt.
Tighten
Tighten the exhaust camshaft gear bolt to 67.5 NSm
(49 lb–ft).
5. Apply a small amount of gasket sealant to the cor-
ners of the front camshaft caps and to the top of
the rear camshaft cover–to–cylinder head seal.
6. Install the camshaft cover and the camshaft cover
gasket.
7. Install the camshaft cover bolts.
Tighten
Tighten the camshaft cover nuts to 10 NSm (89 lb–in).
8. Connect the engine ventilation hoses to the cam-
shaft cover.
9. Connect the ignition wires to the spark plugs.
10. Install the timing belt. Refer to ”Timing Belt” in this
section.
11. Install the engine cover. Refer to ”Engine Cover” in
this section.
12. Connect the negative battery cable.
REAR TIMING BELT COVER
Removal Procedure
1. Remove the timing belt and the timing belt cover.
Refer to ”Timing Belt” in this section.
2. Remove the camshaft gears. Refer to ”Camshaft
Gears” in this section.
3. Remove the crankshaft gear.
4. Remove the timing belt automatic tensioner bolts.
5. Remove the timing belt automatic tensioner.

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 – 67
DAEWOO V–121 BL4
11. Disconnect the engine ventilation hoses from the
camshaft cover.
12. Disconnect the oil filler cap.
13. Remove the spark plug cover bolts.
14. Remove the spark plug cover.
15. Disconnect the ignition wires from the spark plugs.
16. Remove the camshaft cover nuts.
17. Remove the camshaft cover washers.
18. Remove the camshaft cover and the camshaft cov-
er gasket.
Notice : Take extreme care to prevent any scratches,
nicks or damage to the camshafts.
19. While holding the intake camshaft firmly in place,
remove the intake camshaft bolt.
20. Remove the intake camshaft gear.
21. While holding the exhaust camshaft firmly in place,
remove the exhaust camshaft bolt.
22. Remove the exhaust camshaft gear.
23. Remove the timing belt automatic tensioner bolts.
24. Remove the timing belt automatic tensioner.
25. Remove the timing belt idler pulley bolt.
26. Remove the timing belt idler pulley.
27. Remove the crankshaft timing belt gear.
28. Remove the rear timing belt cover bolts.
29. Remove the rear timing belt cover.