Daewoo Nubira. Manual — part 151
1C – 38
I
DOHC ENGINE MECHANICAL
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 N
S
m (89 lb–in).
4. Install the oil pan flange–to–transaxle retaining
bolts.
Tighten
Tighten the oil pan flange–to–transaxle bolts to 40
N
S
m (30 lb–ft).
5. Install the catalytic converters.
Tighten
Tighten the auxiliary catalytic converter–to–exhaust
manifold nuts to 40 N
S
m (30 lb–ft).
DOHC ENGINE MECHANICAL 1C – 39
DAEWOO V–121 BL4
Tighten
Tighten the exhaust pipe support bracket bolts to 40
N
S
m (30 lb–ft).
Tighten
Tighten the front muffler pipe–to–main catalytic con-
verter nuts to 30 N
S
m (22 lb–ft).
6. Connect the post–converter oxygen sensor.
7. Connect the negative battery cable.
8. 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 splash shield.
2. Disconnect the oil pressure switch connector.
3. Install the adapter KM–135 in place of the oil pres-
sure switch.
4. Connect the pressure gauge KM–498–B to the
adapter.
5. Start the engine and check the oil pressure at idle
speed and engine temperature of 80
³
C (176
³
F).
The minimum oil pressure should be 30 kPa (4.35
psi).
6. Stop the engine and remove the pressure gauge
KM–498–B and the adapter KM–135.
1C – 40
I
DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
7. Install the oil pressure switch.
Tighten
Tighten the oil pressure switch to 40 N
S
m (30 lb–ft).
8. Connect the oil pressure switch connector.
9. Install the right front wheel well splash shield.
10. Check the oil level. Add oil until it reaches the full
mark.
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the rear timing belt cover. Refer to ”Rear
Timing Belt Cover” in this section.
3. Disconnect the oil pressure switch connector.
4. Remove the oil pan. Refer to ”Oil Pan” in this sec-
tion.
5. Remove the oil pump/pickup tube and support
bracket bolts.
6. Remove the oil pump/pickup tube.
DOHC ENGINE MECHANICAL 1C – 41
DAEWOO V–121 BL4
7. Remove the oil pump retaining bolts.
8. Carefully separate the oil pump and gasket from
the engine block and oil pan.
9. Remove the oil pump.
Inspection Procedure
1. Clean the oil pump and the engine block gasket
mating surface areas.
2. Remove the safety relief valve bolt.
3. Remove the safety relief valve and the spring.
4. Remove the oil pump–to–crankshaft seal.
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