2004 DAEWOO LACETTI height

0B – 6IGENERAL INFORMATION
DAEWOO V–121 BL4
VEHICLE DIMENSIONS AND WEIGHTS
Vehicle Dimensions
Application1.4L DOHC1.6L DOHC1.8L DOHC
Overall Length
4 Door
5 Door H/B4,500 mm (177.2 in.)
4,295 mm (169.1 in.)






Overhang :
4 Door
Front
Rear
885 mm (34.8 in.)
1,015 mm (40.0 in.)






5 Door H/B
Front
Rear
902 mm (35.5 in.)
793 mm (31.2 in.)






Overall Width1,725 mm (67.9 in.)


Overall Height1,445 mm (56.9 in.)


Minimum Ground Clear-
ance160 mm (6.3 in.)


Wheel Base2,600 mm (102.4 in.)


Tread :
Front
Rear1,480 mm (58.3 in.)
1,480 mm (58.3 in.)






Vehicle Weights
4 Door
Application1.4L DOHC1.6L DOHC1.8L DOHC
Manual :
Curb Weight :
Standard
Optional1,175 kg (2,590 lb)
1,225 kg (2,701 lb)1,180 kg (2,601 lb)
1,230 kg (2,712 lb)1,210 kg (2,668 lb)
1,260 kg (2,778 lb)
Gross Vehicle Weight1,660 kg (3,660 lb)1,665 kg (3,671 lb)1,695 kg (3,737 lb)
Automatic :
Curb Weight :
Standard
Optional–
–1,190 kg (2,624 lb)
1,240 kg (2,734 lb)1,235 kg (2,723 lb)
1,285 kg (2,833 lb)
Gross Vehicle Weight–1,675 (3,693 lb)1,720 kg (3,792 lb)
Passenger Capacity5


Optional Weight : ABS, Sun Roof, A/C

1C1 – 60I1.4L/1.6L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
35. Remove the valves. Maintain the original position of
the valves for installation.
36. Remove the valve stem seals.
Cylinder Head Inspection
1. Clean the sealing surfaces.
2. Inspect the cylinder head gasket and mating sur-
faces for leaks, corrosion, and blowby.
3. Inspect the cylinder head for cracks.
4. Inspect the length and the width of the cylinder
head using a feeler gauge and a straight edge.
5. Check the sealing surfaces for deformation and
warpage. The cylinder head sealing surfaces must
be flat within 0.050 mm (0.002 inch) maximum.
6. Measure the height of the cylinder head from seal-
ing surface to sealing surface. The cylinder head
height should be 134.08 to 134.23 mm. If the cylin-
der head height is less than 134.08 mm, replace
the cylinder head.
7. Inspect all threaded holes for damage.
8. Inspect valve seats for excessive wear and burned
spots.
Valve Inspection
1. Inspect the valve stem tip for wear.
2. Inspect the valve key grooves and the oil seal
grooves for chips and wear.
3. Inspect the valves for burns or cracks.
4. Inspect the valve stem for burrs and scratches.
5. Inspect the valve stem. The valve stem must be
straight.
6. Inspect the valve face for grooving. If the groove is
so deep that refacing the valve would result in a
sharp edge, replace the valve.

1.4L/1.6L DOHC ENGINE MECHANICAL 1C1 – 61
DAEWOO V–121 BL4
7. Inspect the valve spring. If the valve spring ends
are not parallel, replace the valve spring.
8. Measure the valve spring height. Refer to ”Engine
Specifications” in this section. If the valve spring
height does not match the specifications, replace
the valve spring.
9. Inspect the valve spring seating surface of the
valve rotators for wear or gouges. Replace as re-
quired.
Cleaning Procedure
1. Clean the cylinder head.
2. Clean the valve guides.
3. Clean all of the threaded holes.
4. Clean the valves of carbon, oil, and varnish.
Cylinder Head Overhaul
Valve Grind–in
1. Lubricate the valve stem using a fine–grained
paste.
2. Lift the valve rhythmically from the seat with a com-
mercially available valve grinding tool in order to
distribute the paste.
3. Check the contact pattern on the valve head and in
the cylinder head.
4. Clean the valves, the valve guides, and the cylinder
head.

1C1 – 62I1.4L/1.6L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
Valve Grind
1. Ensure that there are no crater line burns on the
valve cone.
2. The valve may be reground only two times. Do not
grind the valve stem end.
3. The angle at the valve face is 45 degrees.
4. Inspect the assembly height of the intake valves
and the exhaust valves.
Valve Guide – Ream
1. Measure the diameter of the valve guide using the
gauge MKM–571–B and a commercially available
inside micrometer.
Important : Valve oversizes may already have been fitted
in production.
2. An oversize service code is on the valve guide and
the valve stem end. The following table gives the
correct size, reamer, and production code for each
service.
Size
ReamerProduction
CodeService
Code
Normal––K
0.075KM–8051K1
0.150–2K2
3. Ream the valve guide from the upper side of the
cylinder head to the next oversize.
4. After reaming, cross out the code and emboss the
valve guide with the new code.
Valve Seat – Cut
1. Place the cylinder head on wooden blocks.
2. Cut the intake and the exhaust valve seats using
the guide drift KM–340–7 as follows:
S Valve seat – A 45–degree surface using the cut-
ter KM–340–13.
S Upper correction angle – A 30–degree surface
using the cutter KM–340–13.
S Lower correction angle – A 60–degree surface
using the cutter KM–340–26.
3. Clean the chippings from the cylinder head.

1.4L/1.6L DOHC ENGINE MECHANICAL 1C1 – 63
DAEWOO V–121 BL4
4. Inspect the dimension for the valve seat width.
S Intake: 1.17 to 1.57 mm (0.046 to 0.062 inch).
S Exhaust: 1.4 to 1.8 mm (0.055 to 0.071 inch).
5. Inspect the assembly height of the intake valves
and the exhaust valves. If the dimension is exceed-
ed, install new valves. Inspect the assembly height
of the intake valves and the exhaust valves again. If
the valve assembly height is still too large despite
replacing the valves, replace the cylinder head.
Assembly Procedure
1. Install the valve stem seals.
2. Lubricate the valve stems with engine oil.
3. Carefully install the valves in their original positions.
Do not damage the valve stem seals.
4. Install the valve springs in their original positions.
5. Install the valve spring caps.
6. Compress the valve springs with the valve spring
compressor KM–348 and adapter KM–653.
7. Install the valve keys.
8. Remove the valve spring compressor KM–348 and
adapter KM–653.
9. Lubricate the valve tappet adjusters with engine oil.
10. Install the valve tappet adjusters.

1.8L DOHC ENGINE MECHANICAL 1C2 – 3
DAEWOO V–121 BL4
Application Description
Diameter (All)
Out of Round (Maximum)48.970~ 48.988 mm (1.9279~1.9287 in.)
0.004 mm (0.00015 in.)
Cylinder Head:
Valve Stem Protrusion39.2~39.8 mm (1.54~1.56 in.)
Valve Guide Height13.7~14.0 mm (0.54~0.57 in.)
Overall Height134 ± 0.025 mm (5.2755~0.0009 in.)
Minimum Overall Height After Machining133.9 mm (5.27 in.)
Valve System:
Valve Lash CompensatorsHydraulic Tappet
Seat Runout (Maximum, All)0.03 mm (0.00118 in.)
Face Runout (Maximum, All)0.03 mm (0.00118 in.)
Valve Stem Diameter:
Intake
Exhaust5.945~5.960 mm (0.2341~0.2346 in.)
5.945~5.960 mm (0.2341~0.2346 in.)
Valve Diameter:
Intake
Exhaust32 ± 0.1 mm (1.2598 ± 0.0039 in.)
29 ± 0.1 mm (1.1417 ± 0.0039 in.)
Valve Seat Width:
Intake
Exhaust1.0~1.5 mm (0.039~0.059 in.)
1.7~2.2 mm (0.066~0.086 in.)
Valve Face Angle44°
Valve Guide Inside Diameter7.03~7.05 mm (0.276~0.277 in.)
Oil Pump:
Gear Lash0.10~0.20 mm (0.003~0.007 in.)
Outer Gear to Body0.11~0.19 mm (0.004~0.007 in.)
Outer Gear to Crescent0.40~0.50 mm (0.015~0.019 in.)
Inner Gear to Crescent0.35~0.40 mm (0.013~0.015 in.)
End Clearance0.030~0.10 mm (0.001~0.003 in.)
Sealants and Adhesives:
Rear Main Bearing CapGE p/n RTV 159
Camshaft Carrier to Cylinder HeadHN 1581 (Loctite® 515)
Oil Pan BoltsHN 1256 (Loctite® 242)
Oil Pump BoltsHN 1256 (Loctite® 242)
Oil Pan Pickup Tube BoltsHN 1256 (Loctite® 242)
Oil Gallery PlugHN 1256 (Loctite® 242)
Coolant Jacket Caps and Plugs (Freeze Plugs)HN 1756 (Loctite® 176)
Exhaust Manifold Studs/NutsAnti–seize Compound (HMC Spec HN1325)

1C2 – 58I1.8L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
31. Remove the valves. Maintain the original position of
the valves for installation.
32. Remove the valve stem seals.
Cylinder Head Inspection
1. Clean the sealing surfaces.
2. Inspect the cylinder head gasket and mating sur-
faces for leaks, corrosion, and blowby.
3. Inspect the cylinder head for cracks.
4. Inspect the length and the width of the cylinder
head using a feeler gauge and a straight edge.
5. Check the sealing surfaces for deformation and
warpage. The cylinder head sealing surfaces must
be flat within 0.025 mm (0.001 inch) maximum.
6. Measure the height of the cylinder head from seal-
ing surface to sealing surface. The cylinder head
height should be 133.975 to 134.025 mm (5.274 to
5.276 inches). If the cylinder head height is less
than 133.9 mm (5.271 inches), replace the cylinder
head.
7. Inspect all threaded holes for damage.
8. Inspect valve seats for excessive wear and burned
spots.
Valve Inspection
1. Inspect the valve stem tip for wear.
2. Inspect the valve key grooves and the oil seal
grooves for chips and wear.
3. Inspect the valves for burns or cracks.
4. Inspect the valve stem for burrs and scratches.
5. Inspect the valve stem. The valve stem must be
straight.
6. Inspect the valve face for grooving. If the groove is
so deep that refacing the valve would result in a
sharp edge, replace the valve.
7. Inspect the valve spring. If the valve spring ends
are not parallel, replace the valve spring.

1C2 – 60I1.8L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
Valve Grind
1. Ensure that there are no crater line burns on the
valve cone.
2. The valve may be reground only two times. Do not
grind the valve stem end.
3. Ensure that the angle at the valve face is 45 de-
grees.
4. Inspect the assembly height of the intake valves
and the exhaust valves.
Valve Guide – Ream
1. Measure the diameter of the valve guide using
gauge MKM–571–B and a commercially available
inside micrometer.
Important : Valve oversizes may already have been fitted
in production.
2. An oversize service code is on the valve guide and
the valve stem end. The following table gives the
correct size, reamer, and production code for each
service.
Size
ReamerProduction
CodeService
Code
Normal––K
0.075KM–8051K1
0.150–2K2
3. Ream the valve guide from the upper side of the
cylinder head to the next oversize.
4. After reaming, cross out the code and emboss the
valve guide with the new code.
Valve Seat – Cut
1. Place the cylinder head on wooden blocks.
2. Cut the intake and the exhaust valve seats using
the guide drift KM–340–7 as follows:
S Valve seat – A 45–degree surface using the cut-
ter KM–340–13.
S Upper correction angle – A 30–degree surface
using the cutter KM–340–13.
S Lower correction angle – A 60–degree surface
using the cutter KM–340–26.
3. Clean the chippings from the cylinder head.