torque spec's on 89 325i headbolt's

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  • KillaCam
    R3VLimited
    • Jun 2009
    • 2103

    #1

    torque spec's on 89 325i headbolt's

    i have heard different things and my stupid manual doesn't tell me it only says for the m42 engine
    i am using torxx bolts
    Originally posted by E30_(1st Musk)_
    HONDA IS WHERE EVERY TREND DIES! .

    24v swap Oil Pan..F/S
  • Sagaris
    R3VLimited
    • Sep 2009
    • 2243

    #2
    I know its a fraction of the torque required to strip the shit out of them :giggle:

    Comment

    • KillaCam
      R3VLimited
      • Jun 2009
      • 2103

      #3
      funny guy^^ lol
      Originally posted by E30_(1st Musk)_
      HONDA IS WHERE EVERY TREND DIES! .

      24v swap Oil Pan..F/S

      Comment

      • Sagaris
        R3VLimited
        • Sep 2009
        • 2243

        #4
        Just for the sake of upping my post count I will make a separate reply for the "Why so serious?" answer

        From the Bently pg 64 of the Engine section

        Cylinder head to cylinder block

        6 cyl engine (Torx head)
        Stage 1: 30 Nm (22 lb-ft)
        Stage 2: 90 degree torque angle
        Stage 3: 90 degree torque angle

        6 cyl engine (Hex head)
        Stage 1: 40 Nm (+5/-0), (30 lb-ft +4/-0)
        Stage 2 (after waiting 15 minutes) : 60 Nm (+5/-0), (44 lb-ft +4/-0)
        Stage 3 (with engine at OP. temperature): 20 degree (+5/-0) torque angle

        Comment

        • KillaCam
          R3VLimited
          • Jun 2009
          • 2103

          #5
          thanx man =]
          Originally posted by E30_(1st Musk)_
          HONDA IS WHERE EVERY TREND DIES! .

          24v swap Oil Pan..F/S

          Comment

          • jlevie
            R3V OG
            • Nov 2006
            • 13530

            #6
            In case it isn't obvious by the fact that the bolts are angle torqued, head bolts are one-time use fasteners. Once you pull them, you throw them away.
            The car makes it possible, but the driver makes it happen.
            Jim Levie, Huntsville, AL

            Comment

            • The Dough
              Member
              • Sep 2010
              • 45

              #7
              I just replace my hex head bolts for torx style ones. When I replaced the hex ones, they all smelled of burnt oil. The two at the back of the engine were covered in oil.... Wonder what thats about?

              Anyone shed any light on that for me?

              Comment

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