CAC Gasoline Engine Maintenance And Servicing Manual
60
4. The removal and assembly for the exhaust manifold, heat insulation cover and rear lifting lug:
Removal:
－Loose and remove the M12×25 allen screw, and remove
the rear lug .
－Loose and remove two M8×12 screw and remove the
heat insulation cover .
－Loose and remove 8 M8 lock nuts and washers.－remove
the exhaust manifold.
－Remove the exhaust manifold sealing gasket.－Remove
eight M8 studs of same length.
Assembly:
－screw in 8 M8 studs of same length and tighten them with
two nuts.
－Assemble the new exhaust manifold sealing gasket.
－Install the exhaust manifold.
－Put the washers onto the studs and tighten lock nuts with
hands, tightening torque is 14-17Nm .
－Assemble the heat insulation cover and tighten two bolts
with hands ,tightening torque is 14-19Nm .
－install the rear lug and tighten allen screw with hands ,
tightening torque is 50-60Nm.
5. for oxygen sensor and 3 way catalyst Converter, See
“CAC480M Engine’s single port injection system”
Bolt
manifold
Fig.106
hexagonal nut
sensor
Sealing gasket
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