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What is the bedplate torque sequence for a Chrysler 4.7L? My manual doesn’t seem to list all the fasteners.

The AERA Technical Committee offers the following information regarding the main bearing cap/bedplate bolt torque and sequence for 1999-2004 Chrysler 4.7L VIN N engines.

This engine uses multiple fasteners at many different locations to secure the bedplate to the cylinder block. Some previous publications did not list all of the fasteners. To correctly install the assembly, refer to the illustration and procedure listed in Figure 1.

  1. Lubricate the bedplate retaining bolts with clean engine oil prior to installation.

  2. Locate all fasteners in their correct location, making sure stud bolts are at number 3, 5 & 6 locations (Fig.1 indicated by stars next to number).

  3. Tighten bolts 1-10 to 25 in.lbs. (2.8 Nm).

  4. Turn bolts 1-10 an additional 90

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Engine Builder Staff

Engine Builder Staff

  • Michael Dawson

    What about the rest of the bolts torque? A -L = 40 ft/Lb. A1-A6 = 20 ft/Lb

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