(2) Connect fuel return hose to fuel pressure regulator. (Fig. 161)
4. Use two bolts to fix air intake manifold support stay.
Torque applied onto 12mm head bolt shall be 21 N. m.
Torque applied onto 14mm head bolt shall be 44 N. m.
25. Mount throttle body
(1) Install new gasket onto the flank side of intake manifold (Fig.162), the protruding side of gasket shall face downward.
(2) Connect two cooling water hoses onto the throttle body.
(3) Mount the throttle body onto the intake manifold with two bolts and nuts with torque of 20N.m (Fig. 163).
(4) Connectors: throttle position sensor(1), connector of ISC (idle speed control) valve (2) (Fig. 164)
26. Mount water inlet port and its shield
(1) Completely remove the old filling material in the water intake. There shall be no impurities or oil stains.
(2) Fill the sealant into the slot on the shield.(Fig.165)
Fig. 160 Fixing engine wire support
Fig.161 Connect fuel return hose to pressure regulator
Fig. 163 Mount throttle body onto intake manifold
Fig. 164 Connect throttle position sensor to ISC connectors
Fig. 165 Smear sealant to the water inlet shield
Fig. 162 Mount new gaskets onto the throttle
body and connect to water bypass hose
Sealant
Sealant Diameter 2-3 mm
Downward
Cooling water
bypass hose
(1)
(2)
66
Summary of Contents for JL481Q
Page 1: ......
Page 9: ...5 Fig 3 Components Assembly Drawing of MR479Q MR479QA Engine ...
Page 10: ...6 Fig 4 MR479Q MR479QA Engine and Its Power System ...
Page 11: ...7 Fig 5 Assembly Drawing of Engine and Its Auxiliaries MR479Q MR479QA ...
Page 12: ...8 Fig 6 Electronic Control Fuel Injection System in Engine MR479Q MR479QA ...
Page 13: ...9 Fig 7 Front view of Engine JL481Q MR481QA ...
Page 14: ...10 Fig 8 Sectional elevation of Engine JL481Q MR481QA ...
Page 15: ...11 Fig 9 Electronic Control Fuel Injection System in Engine JL481Q MR481QA ...