Head bolts torque spec?

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  • Kevan
    Noobie
    • Mar 2004
    • 25

    #1

    Head bolts torque spec?

    What do I torque the head bolts to?

    Thanks
  • arnoldgtr
    Advanced Member
    • Mar 2004
    • 153

    #2
    That would depend on which engine you have. M10 torque specs are different from M20.
    If you have an M20 with Torx head bolts, the torque spec is in three stages. On each stage, tighten all the head bolts in the proper sequence.
    Stage 1...22 ft-lbs
    Stage 2...90 degrees torque angle
    Stage 3...90 degrees torque angle
    John
    88 ///M3 Cinnabar
    84 318i Black

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    • Kevan
      Noobie
      • Mar 2004
      • 25

      #3
      Oops forgot m20. Their 11mm head bolts and is there a conversion for degrees torque angle to ft-lbs.

      Thanks

      Comment

      • nickmp0wer
        Banned
        • Jul 2004
        • 1427

        #4
        90 degrees is the amount u turn it lol like going from 12 to 3 on a clock

        Comment

        • Jarvis
          R3VLimited
          • Nov 2003
          • 2132

          #5
          Straight out of the Bentley:

          Tightening sequence (looking straight down to head, standing on exhaust side):
          12 10 4 2 6 8 14
          13 7 5 1 3 9 11

          Stage 1:
          Torx-head: 30Nm (22 ft. lb)
          Hex-head: 40 [+5/-0] Nm (30 [+4/-0] ft. lb)

          Stage 2:
          Torx-head: 90 deg.
          Hex-head: 60 [+5/-0] Nm (44 [+4/-0] ft. lb) after waiting 15 minutes

          Stage 3:
          Torx-head: 90 deg.
          Hex-head: 25 [+5/-0] deg. after running engine for 25 minutes

          -Jarvis, who was so bored that he went out to his car to get the Bentley and then type all of that for you.

          Comment

          • Kevan
            Noobie
            • Mar 2004
            • 25

            #6
            Thanks for the help :D

            Comment

            • Axxe
              No R3VLimiter
              • Aug 2004
              • 3355

              #7
              Every E30 owner should have a Bentley.


              Keep it slideways!!

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