| TIBURON(GK) >2003 > G 2.7 DOHC > Engine Mechanical System > Lubrication System > Oil Pump>Repair procedures |

DISASSEMBLY
1. | Remove the oil pressure switch, using 24 mm deep socket.
Since a sealant is used on the threaded area, be careful not to damage the oil pressure switch.
2. | Remove the oil filter and the oil pan.
3. | Remove the oil screen and gasket.
4. | Remove the three bracket securing bolts and remove the oil filter bracket and gasket.
5. | Remove the oil relief valve plug from the oil pump case.
6. | Remove the oil pump case.
INSPECTION
Oil Pump
1. | Visually check the parts of the oil pump case for cracks and damage.
2. | Assemble the rotor on the oil pump and then check the clearance with a thickness gauge.
Oil pump side clearance Standard value Body clearance : 0.100 ~ 0.181mm (0.0039 ~ 0.0071 in.) Side clearance : 0.040 ~ 0.095mm (0.0016 ~ 0.0037in.)
Relief Plunger and Spring
1. | Check the relief plunger for smooth operation.
2. | Check the relief spring for deformation or breaks.
Oil Filter Bracket
1. | Make sure that there is no damage on the surface that mates with the oil filter.
2. | Check the oil filter bracket for oil leaks or cracks.
Oil pressure Switch
1. | Check the continuity between the terminal and the body with an ohmmeter. If there is no continuity, replace the oil pressure switch.
2. | Check the continuity between the terminal and the body when the fine wire is pushed. If there is continuity even when the fine wire is pushed,replace the switch.
3. | If there is no continuity when a 50 kpa (7 psi) vacuum is applied through the oil hole, the switch is operating properly. Check for air leakage. If air leaks, the diaphragm is broken replace it.
Operation Pressure Oil pressure switch : 20 ~ 40kpa (0.2 ~ 0.4kg/cm². 2.9 ~ 5.8 psi)
REASSEMBLY
1. | Install the oil pump case with the gasket.
Tightening torque Oil pump case bolt : 12 ~ 15Nm (120 ~ 150kg.cm, 9 ~ 11lb.ft) Oil pump cover screw : 8 ~ 12Nm (80 ~ 120kg.cm, 6 ~ 9lb.ft)
2. | Install the oil seal into the oil pump case as tightly as possible, using the special tool (09214-33000).
3. | Install the relief plunger and spring, and tighten the oil relief valve plug to the specified torque.
Tightening torque Oil relief valve plug : 40 ~ 50Nm (400 ~ 500kg.cm, 29 ~ 36lb.ft)
4. | Install the oil screen and a new gasket.
Tightening torque Oil screen bolt : 15 ~ 22Nm (150 ~ 220kg.cm, 11 ~ 15lb.ft)
5. | Clean the gasket surfaces of the cylinder block and the oil pan.
6. | Apply sealant to the groove of the oil pan flange.
1. | Make the first cut approx. 4 mm from the end of the nozzle furnished with the sealant. After application of the sealant, do not exceed 15 minutesbefore installing the oil pan.
2. | Make sure that the sealant doesn't enter the inside of the oil pan.
7. | Install the oil pan and tighten the bolts to the specified torque.
Tightening torque Oil pan bolt * : 19 ~ 28Nm (190 ~ 280kg.cm, 14 ~ 20lb.ft) ** : 5 ~ 7Nm (50 ~ 70kg.cm, 4 ~ 5lb.ft *** : 30 ~ 42Nm (300 ~ 420kg.cm, 22 ~ 30lb.ft)
8. | Tighten the oil pan bolts as shown in the illustration.
9. | Using a 24 mm deep socket, install the oil pressure switch after applying sealant to the threaded area.
Sealant Three bond No.1141E or 3M ATD No. 8660 or equivalent
Do not torque the oil pressure switch too much.
Tightening torque Oil pressure switch 15 ~ 22Nm (150 ~ 220kg.cm, 11 ~ 16lb.ft)
10. | Tighten the lower oil pan bolts as shown in figure.