2004 DAEWOO LACETTI transaxle

1C1 – 74I1.4L/1.6L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
56. Install the engine lifting device.
57. Remove the engine from the engine overhaul stand
KM–412.
58. Install a new crankshaft rear oil seal using the in-
staller J–36792 or KM–635.
59. Install the flywheel or the flexible plate.
60. Install the flywheel or the flexible plate bolts.
Tighten
Tighten the flywheel bolts to 35 NSm (25 lb–ft). Use
the angular torque gauge KM–470–B to tighten the
flywheel bolts another 30 degrees plus 15 degrees. If
the vehicle is equipped with an automatic transaxle,
tighten the flexible plate bolts to 45 NSm (33 lb–ft).
61. Install the engine. Refer to ”Engine” in this section.
CRANKSHAFT BEARINGS AND
CONNECTING ROD BEARINGS –
GAUGING PLASTIC
Tools Required
KM–470–B Angular Torque Gauge
Inspection Procedure – Crankshaft
1. Coat the crankshaft bearings with engine oil.
2. Install the upper crankshaft bearings into the engine
block crankshaft journals.
3. Install the lower crankshaft bearings into the crank-
shaft bearing caps.

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–

1.8L DOHC ENGINE MECHANICAL 1C2 – 5
DAEWOO V–121 BL4
Application Lb–InLb–Ft NSm
Oil Pan Retaining Bolts10–89
Oil Pressure Switch4030–
Oil Suction Pipe Bolts8–71
Oil Suction Pipe Support Bracket Bolts16–53
Oil Pump Rear Cover Bolts6–53
Oil Pump Retaining Bolts10–89
Pulse Pickup Sensor Disc1310–
Rear Timing Belt Cover Bolts7–62
Safety Relief Valve Bolt3022–
Spark Plug Cover Bolts8–71
Spark Plugs2015–
Thermostat Housing Mounting Bolts1511–
Throttle Cable Bracket Bolts8–71
Timing Belt Automatic Tensioner Bolts2518–
Timing Belt Idler Pulley Bolt2518–
Timing Belt Idler Pulley Nut2518–
Transaxle Bell Housing Bolts7555–
Transaxle Torque Converter Bolts6044–

1.8L DOHC ENGINE MECHANICAL 1C2 – 11
DAEWOO V–121 BL4
1. Connecting Rod
2. Bearing Set
3. Connecting Rod Bolt
4. Piston Ring Set
5. Piston Pin
6. Piston
7. Engine Block
8. Sleeve
9. Water Jacket Cap
10. Bolt (Manual Transaxle)
11. Flywheel (Manual Transaxle)
12. Flexible Plate (Automatic Transaxle)
13. Bolt (Automatic Transaxle)
14. Clamp
15. Hose
16. Clamp
17. Engine Ventilation Pipe
18. Bolt
19. Gasket
20. Needle Sleeve
21. Crankshaft Rear Seal
22. Crankshaft
23. Transmitter Disk
24. Bolt
25. Oil Pan Scraper
26. Oil Pan
27. Drain Plug
28. Washer
29. Bolt
30. Sleeve
31. Gasket
32. Bolt
33. Oil Pump Cover
34. Ring Gear
35. Gear
36. Oil Pressure Switch
37. Washer
38. Washer
39. Oil Duct Outlet Plug
40. Connecting Piece
41. Seal Ring
42. Oil Filter43. Bypass Valve
44. Pressure Relief Valve Plunger
45. Pressure Relief Valve Spring
46. Seal Ring
47. Pressure Relief Valve Plug
48. Seal Ring
49. Bolt
50. Oil Suction Pipe
51. Bolt
52. Rear Timing Belt Cover
53. Bolt
54. Special Bolt
55. Idler Pulley
56. Stud
57. Nut
58. Bolt
59. Tensioner
60. Bolt
61. Thrust Inner Washer
62. Woodruff Key
63. Crankshaft Gear
64. Thrust Outer Washer
65. Bolt
66. Camshaft Drive Belt
67. Gasket
68. Front Timing Belt Cover
69. Bolt
70. Bushing Plug
71. Bushing
72. Oil Gallery Plug
73. Bolt
74. Water Pump
75. Seal Ring
76. Crankshaft Position Sensor
77. Bolt
78. Knock Sensor*
79. Bolt
80. Bolt
81. Crankshaft Bearing Bridge
* : 2.0L DOHC Engine

1C2 – 32I1.8L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
OIL PAN
Removal Procedure
1. Disconnect the negative battery cable.
2. Drain the engine oil from the engine crankcase.
3. Remove the exhaust flex pipe retaining nuts from
the exhaust manifold.
4. Remove the exhaust flex pipe retaining nuts from
the catalytic converter or the connecting pipe.
5. Remove the exhaust flex pipe.
6. Remove the oil pan flange–to–transaxle retaining
bolts.
7. Remove the oil pan retaining bolts.
8. Remove the oil pan from the engine block.
Cleaning Procedure
1. Clean the oil pan sealing surface.
2. Clean the engine block sealing surface.
3. Clean the oil pan retaining bolts.
4. Clean the oil pan attaching bolt holes in the engine
block.
5. Clean the oil pan scraper.

1.8L DOHC ENGINE MECHANICAL 1C2 – 33
DAEWOO V–121 BL4
Installation Procedure
1. Coat the new oil pan gasket with sealant.
Important : Install the oil pan within 5 minutes after apply-
ing the liquid gasket to the oil pan.
2. Install the oil pan to the engine block.
3. Install the oil pan retaining bolts.
Tighten
Tighten the oil pan retaining bolts to 10 NSm (89 lb–in).
4. Install the oil pan flange–to–transaxle retaining
bolts.
Tighten
Tighten the oil pan flange–to–transaxle bolts to 40
NSm (30 lb–ft).
5. Install the exhaust flex pipe.
6. Install the exhaust flex pipe retaining nuts to the
exhaust manifold.
Tighten
Tighten the exhaust flex pipe–to–exhaust manifold
retaining nuts to 35 NSm (26 lb–ft).
7. Install the exhaust flex pipe retaining nuts to the
catalytic converter or the connecting pipe.
Tighten
Tighten the exhaust flex pipe–to–catalytic converter
or connecting pipe retaining nuts to 35 NSm (26 lb–ft).
8. Connect the negative battery cable.
9. Install the oil pan drain plug.
Tighten
Tighten the oil pan drain plug to 35 NSm (26 lb–ft).
10. Refill the engine crankcase with engine oil.
OIL PUMP
Tools Required
KM–498–B Pressure Gauge
KM–135 Adapter
Engine Oil Pressure Inspection Procedure
1. Remove the right front wheel well oil pan scraper.
Refer to Section 9R, Body Front End.
2. Disconnect the oil pressure switch connector.

1C2 – 48I1.8L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
40. Remove the crankshaft pulley bolts.
41. Remove the crankshaft pulley.
42. Disconnect the vacuum lines at the charcoal canis-
ter purge solenoid.
43. Disconnect the electrical connector at the charcoal
canister purge (CCP) and the exhaust gas recir-
culation (EGR) solenoid.
44. Disconnect the electrical connector at the oil pres-
sure switch.
45. Disconnect the crankshaft position sensor (CPS)
connector.
46. Disconnect the knock sensor connector.
47. Remove the transaxle torque converter bolts, if au-
tomatic transaxle equipped.
48. Remove the transaxle bell housing bolts and the oil
pan flange bolts.
49. Support the transaxle with a floor jack.
50. Install the engine lifting device.
51. Disconnect the right engine mount bracket from the
engine mount by removing the retaining bolt.
52. Remove the right engine mount bracket from the
engine block and frame mount. Refer to Section
5B, Five Speed Manual Transaxle, or Section 5A,
Automatic Transaxle.
53. Separate the engine block from the transaxle. Re-
move the engine.
Installation Procedure
1. Install the engine into the engine compartment.
2. Align the engine alignment pins to the transaxle.
3. Install the transaxle bell housing bolts.
Tighten
Tighten the transaxle bell housing bolts to 75 NSm (55
lb–ft).
4. Install the oil pan flange–to–transaxle bolts.
Tighten
Tighten the oil pan flange–to–transaxle bolts to 40
NSm (30 lb–ft).

1.8L DOHC ENGINE MECHANICAL 1C2 – 49
DAEWOO V–121 BL4
5. Install the right engine mount to the engine block
mount and the frame mount.
6. Install the right engine mount bracket retaining bolts
and nuts.
Tighten
Tighten the engine mount bracket retaining bolts and
nuts to 55 NSm (41 lb–ft).
7. Remove the floor jack used for support of the trans-
mission.
8. Remove the engine lifting device.
9. Install the transaxle torque converter bolts, if auto-
matic transaxle equipped.
Tighten
Tighten the transaxle torque converter bolts to 60
NSm (44 lb–ft).
10. Connect the vacuum lines at the CCP solenoid.
11. Connect the electrical connector to the CCP and
the EGR solenoid.
12. Connect the oil pressure switch connector.
13. Install the crankshaft pulley.
14. Install the crankshaft pulley bolts.
Tighten
Tighten the crankshaft pulley bolts to 20 NSm (15 lb–
ft) using a torque wrench.
15. Connect the CPS connector.
16. Install the exhaust flex pipe.
17. Install the exhaust flex pipe retaining nuts to the
exhaust manifold studs.
Tighten
Tighten the exhaust flex pipe–to–exhaust manifold
retaining nuts to 35 NSm (26 lb–ft).