Detroit Diesel MBE 4000 Service Manual page 470

7.5 EGR CONTROL VALVE, GAS OUTLET PIPE, AND GAS MIXER
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5. Connect wiring harness terminal to valve connector.
6. Insert a second membrane into the right side of the EGR control valve housing using
industrial petroleum jelly.
7. Taking the EGR gas outlet pipe in hand, fit component manually onto symmetric
membrane, using petroleum jelly.
8. Install the four gas mixer mounting studs into the intake manifold.
9. Install metal gasket over studs.
10. Fit gas mixer over mounting studs and push on as far as possible.
11. Install the gas mixing pipe into the air inlet pipe of mixer using a new metal gasket.
See Figure 7-40.
To avoid any engine damage, ensure that the gas passage of the
mixing pipe is turned towards the intake manifold.
NOTE:
Due to its awkward shape, gas outlet pipe must be mounted to gas mixer before the gas
mixer can be firmly attached to intake manifold.
12. Mount gas outlet pipe to gas mixer using a new metal gasket and two M8 x 16 mm
bolts. Adjust gas mixer if necessary to accommodate the gas outlet pipe. Torque to 25
N·m (19 lb·ft).
13. Position support bracket in place for gas outlet pipe. Install bracket using three M8 x 16
mm bolts. Torque to 25 N·m (19 lb·ft).
14. Install the air inlet pipe to the gas mixer using four nuts. Torque to 50 N·m (37 lb·ft).
See Figure 7-41.
15. Install the turbo boost/air intake temperature sensor to the gas mixer.
7-50
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NOTICE:
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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All information subject to change without notice.
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