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Detroit Diesel 4000 — Exhaust Manifold Gasket Installation

For the Detroit Diesel 4000.

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Procedure

  1. 7. Install the entire exhaust manifold assembly onto the cylinder heads by lifting the right side (or front) into place first, followed by the left (or rear). Insta
  2. 8. Torque remaining three mounting bolts (captured bolt and washer type) of the lower heat shield to the exhaust manifold. Torque to 25 N·m (18 lb·ft).
  3. 9. Torque remaining five mounting bolts (captured bolt and washer type) of the upper heat shield to the exhaust manifold. Torque to 25 N·m (18 lb·ft).
  4. 10. Install the fey rings (4 per groove) on the gas inlet pipe leading to exhaust manifold center piece. Do not use lubricant.
  5. 11. Gently push gas inlet pipe into center exhaust manifold piece. Do not use lubricant.
  6. 12. Push gas inlet pipe of heat exchanger into throttle valve. Tighten screw at bottom of positioning clamp on throttle valve assembly. Clamp must be tightened to 1
  7. 13. Screw the nut onto stud installed in exhaust manifold. Fit stud in the bracket that is attached to the gas inlet pipe. Attach a nut to the outer edge of bracket
  8. 14. Adjust 219 mm (8.62 in.) dimension on stud by doing the following: (Rev. 0403) All information subject to change without notice. 7-24 From Bulletin 7–MBE-4000–0

Specs & torque values

  • M8 x 12mm bolts
  • Torque: 25 N·m (18 lb·ft)

Source: manual:7-mbe4000-05a - Three-Piece Exhaust Manifold Gaskets.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.