Daewoo Nubira. Manual — part 105
GENERAL INFORMATION 0B – 25
DAEWOO V–121 BL4
0B – 26
I
GENERAL INFORMATION
DAEWOO V–121 BL4
Vehicle Lifting Points
SECTION : 1C
DOHC ENGINE MECHANICAL
CAUTION : Disconnect the negative battery cable before removing or installing any electrical unit or when a tool
or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable will help
prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise noted.
TABLE OF CONTENTS
SPECIFICATIONS
1C–2
. . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE SPECIFICATIONS
1C–2
. . . . . . . . . . . . . . . . .
FASTENER TIGHTENING
SPECIFICATIONS
1C–4
. . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS
1C–6
. . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS TABLE
1C–6
. . . . . . . . . . . . . . . . . . .
COMPONENT LOCATOR
1C–8
. . . . . . . . . . . . . . . . . . . .
UPPER END
1C–8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LOWER END
1C–10
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE AND REPAIR
1C–12
. . . . . . . . . . . . . .
ON–VEHICLE SERVICE
1C–12
. . . . . . . . . . . . . . . . . . . .
VALVE COVER
1C–12
. . . . . . . . . . . . . . . . . . . . . . . . . . .
CYLINDER HEAD AND GASKET
1C–14
. . . . . . . . . . .
CAMSHAFTS
1C–24
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIMING BELT CHECK AND ADJUST
1C–27
. . . . . . .
TIMING BELT
1C–31
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
OIL PAN
1C–36
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OIL PUMP
1C–39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE MOUNT
1C–44
. . . . . . . . . . . . . . . . . . . . . . . . .
INTAKE MANIFOLD
1C–46
. . . . . . . . . . . . . . . . . . . . . .
EXHAUST MANIFOLD
1C–49
. . . . . . . . . . . . . . . . . . . .
CAMSHAFT GEARS
1C–51
. . . . . . . . . . . . . . . . . . . . . .
REAR TIMING BELT COVER
1C–53
. . . . . . . . . . . . . .
ENGINE
1C–55
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PISTONS AND RODS
1C–63
. . . . . . . . . . . . . . . . . . . .
UNIT REPAIR
1C–68
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CYLINDER HEAD AND VALVE TRAIN
COMPONENTS
1C–68
. . . . . . . . . . . . . . . . . . . . . . . .
CRANKSHAFT
1C–77
. . . . . . . . . . . . . . . . . . . . . . . . . . .
CRANKSHAFT BEARINGS AND
CONNECTING ROD BEARINGS –
GAUGING PLASTIC
1C–88
. . . . . . . . . . . . . . . . . . . .
GENERAL DESCRIPTION AND SYSTEM
OPERATION
1C–91
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CYLINDER HEAD AND GASKET
1C–91
. . . . . . . . . . .
CRANKSHAFT
1C–91
. . . . . . . . . . . . . . . . . . . . . . . . . . .
TIMING BELT
1C–91
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
OIL PUMP
1C–91
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OIL PAN
1C–91
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EXHAUST MANIFOLD
1C–91
. . . . . . . . . . . . . . . . . . . .
INTAKE MANIFOLD
1C–91
. . . . . . . . . . . . . . . . . . . . . .
CAMSHAFTS
1C–91
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
1C – 2
I
DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
SPECIFICATIONS
ENGINE SPECIFICATIONS
Application
Description (Manual and Automatic)
General Data:
Engine Type
4–Cylinder (in–line)
Displacement
1,998 cm
3
(121.92 in
3
)
Bore Stroke
86 x 86 mm (3.38 in. x 3.38 in.)
Compression Ratio
9.6
µ
0.2 :1
Firing Order
1–3–4–2
Cylinder Bore:
Diameter
85.995~86.485 mm (3.3856~3.4049 in.)
Out of Round (Maximum)
0.013 mm (0.0005 in.)
Taper (Maximum)
0.013 mm (0.0005 in.)
Piston:
Diameter
85.955–86.485 mm (3.384–3.404 in.)
Clearance to Bore
0.0100~0.0300 mm (0.00039~0.00110 in.)
Piston Protrusion
0.5 mm (0.019 in.) Maximum
Piston Taper
0.013 mm (0.0005 in.)
Piston Rings:
Ring, End Gap, Top Compression
0.3~0.5 mm (0.011~0.019 in.)
Ring, End Gap, Second Compression
0.3~0.5 mm (0.011~0.019 in.)
Piston Pin:
Diameter
20.9970~20.9985 mm (0.82665~0.82671 in.)
Pin Offset
0.8 mm (0.03 in.) Toward Thrust Side
Clearance: In Piston
0.0035~0.0140 mm (0.00013~0.00055 in.)
Clearance: In Rod
Interference Fit in Rod
Length
61.5 mm (2.42 in.)
Camshaft:
Lift – Intake
10.0 mm (0.39 in.)
Lift – Exhaust
10.0 mm (0.39 in.)
End Play
0.040~0.144 mm (0.0015~0.0056 in.)
Bearing Journal OD
42.455~43.470 mm (1.6714~1.7114 in.)
Crankshaft:
Main Journal
Diameter (All)
57.974~57.995 mm (2.2824~2.2832 in.)
Out of Round (Maximum)
0.003 mm (0.0001 in.)
Main Bearing Clearance (All)
0.015–0.061 mm (0.00059~0.00239 in.)
Crankshaft End Play
0.070~0.302 mm (0.0027~0.0118 in.)
Service Oversize
Available in 2 sizes
0.25 mm and 9.50 mm (0.0098~0.0196 in.)
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