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M20 head plastic bit?

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    #1

    M20 head plastic bit?

    I just got my head back from the machine shop, and I'm desperate to get it on the car today. I checked the back of the head and it's got one plastic piece near the back coolant hose, yet the other side is open. Here's a pic:



    Do I need either one? Or two? Am I missing one? I can't find anything on realoem...

    Thanks in advance.
    Last edited by Andy348; 01-15-2013, 09:44 AM.
    Tags: None
    #2
    You are missing a bung, and all four of them are needed. That won't stop you from installing the head, but you can't run the engine until you have the bung.

    Get four of part #13 on http://www.realoem.com/bmw/showparts...66&hg=11&fg=25

    The best head gasket to use is the OE gasket, but a Goetz is a good second choice. Use new copper plated nuts (and anti-sieze) for the exhaust and of course new head bolts. And don't forget to use new o-rings on the top and bottom of the oil return tube. It is pretty important to chase the head bolt threads in block and blow them clean with compressed air. Oh yeah, make sure both dowels are present.
    Last edited by jlevie; 01-12-2013, 11:18 AM.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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      #3
      It's probably also worth it to mention that those are supposed to be replaced every time you change the valve cover as well. Lots of people don't do that and wonder why their valve cover is still leaking :p
      -Alex

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        #4
        Originally posted by acolella76 View Post
        It's probably also worth it to mention that those are supposed to be replaced every time you change the valve cover as well. Lots of people don't do that and wonder why their valve cover is still leaking :p
        True! I've never understood why the bugs don't come with the valve cover gasket.
        The car makes it possible, but the driver makes it happen.
        Jim Levie, Huntsville, AL

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          #5
          Thanks everyone. Turns out the VR headgasket kit came with 3 which I never saw, so I'm all good.

          I appreciate the fast responses!

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            #6
            Note that rocker shaft end plug in the head is in backwards
            Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com

            https://www.r3vlimited.com/board/sho...86#post4944786
            Alice the Time Capsule
            http://www.r3vlimited.com/board/showthread.php?t=360504
            87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

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              #7
              Heres a pic, are they supposed to be the opposite way?



              Oh, and what are these? They came in the head gasket kit.

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                #8
                That is the correct installation for the plugs and those are valve guide seals in your hand.

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                  #9
                  Those green things are valve seals they go under the springs, between the valve guide and shaft of the valve to keep oil from leaking through. You installed the black plugs the correct way.
                  318iS Track Rat :nice: www.drive4corners.com
                  '86 325iX 3.1 Stroker Turbo '86 S38B36 325

                  No one makes this car anymore. The government won't allow them, normal people won't buy them. So it's up to us: the freaks, the weirdos, the informed. To buy them, to appreciate them, and most importantly, to drive them.

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                    #10
                    Great, thanks guys. Much appreciated.

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