Chery A11. Manual — part 23
CAC Gasoline Engine Maintenance And Servicing Manual
47
4. The removal and installation of oil pump with oil seal assembly
removal：
——Loosen six M6×30 hexagonal flange surface bolts. Remove the
bolts (as the figure indicates )
——Remove oil pump with oil seal assembly
——Pry out the front oil seal of crankshaft by screwdriver or chisel.
Note: Don’t damage the front oil seal bore.
——Remove seven M6 countersunk head screws (as the arrow in
figure indicates )
——Remove oil pump cover
——Take out the inner and outer rotor
Fig. 79
Fig. 80
Fig. 81
Fig. 82
CAC Gasoline Engine Maintenance And Servicing Manual
48
——Check the clearance between outer rotor of oil pump and case bore
of oil pump.
The clearance between outer rotor of oil pump and case bore of oil
pump should be 0.06—0.19mm.
——Check the radial clearance between inner rotor and outer rotor of
oil pump.
The radial clearance between inner rotor and outer rotor of oil
pump should be 0.05—0.18mm.
——Check the end play of rotor
The end play of rotor should be 0.014—0.100mm.
——Remove horizontal hexagonal socket head plug (small one)
——Take out the spring of relief valve and plunger of relief valve.
——Check the spring load and free length
spring free length is 46mm。
spring load is 32.8N±2N when the length is 29mm.
installation length of relief valve spring is 38.5mm.
Fig. 83
Fig. 84
Fig. 85
Fig. 86
CAC Gasoline Engine Maintenance And Servicing Manual
49
——If relief valve spring is not to specification, it must be
replaced.
Installation：
——Install the outer and inner rotor into the oil pump house
ensuring the installation mark of outer and inner rotor upward.
——Install oil pump cover on oil pump. Tighten seven chamfer
head screws. tightening torque is 7-10Nm.
——Install relief valve and relief valve spring into the oil pump
bore.
——Screw 3/8″plug screw into the oil pump house. keep it in
place. tightening torque is 20-25Nm.
——Stick the new oil pump sealing gasket on the front end of
cylinder block.
——Install the oil pump into the front end of crankshaft. center
the inner bore of inner rotor Before installation.
——Screw six mounting bolts by hand.
——Check and adjust the roughness of lower surface of oil pump
and flange surface of cylinder block oil pan. It should be within the
range:±0.26mm.
——Tighten the retaining bolt of oil pump to 8-11Nm.
——Apply the engine oil on the oil seal journal of crankshaft.
——Wrap a plastic tape on the oil seal journal of crankshaft
avoiding to damage the edge of front crankshaft oil seal .
——Apply engine oil on the edge of front crankshaft oil seal.
Press the oil seal in place using appropriate socket or sleeve and
crankshaft pulley and pulley bolt and washers.
Fig. 87
Fig. 88
Fig. 89
Fig. 90
CAC Gasoline Engine Maintenance And Servicing Manual
50
——Remove the thin plastic protective tape
5.
removal and installation of oil filter and oil
pressure sensor.
Removal：
——Remove the oil filter. rotate oil filter counterclockwise
during removal.
——Remove the oil pressure sensor
Installation：
——Apply engine oil on the sealing gasket of oil filter and
screw into the connector. Tightening torque is 12－17Nm.
Or screw into oil filter by hand. once rubber sealing gasket
contacts cylinder block, tighten another 3/4－1 turns.
——Apply Lotite 243 sealant and screw it to the main oil
passage of cylinder block. Tightening torque is 25 －
29Nm.
The threaded hole of oil pressure sensor is 1/4″－18NPTF.
The operating voltage of oil pressure sensor is 6－24V.
The starting warning pressure is 30±15kPa.
Fig. 91
tightening torque 18.0-25.0Nm
oil pressure
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст