Rocker Arm Shaft Removal

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  • ewolfe57
    Noobie
    • Jun 2016
    • 29

    #1

    Rocker Arm Shaft Removal

    I'm stripping down the motor on a 325ic I have in order to rebuild the head and swap it onto my '86 eta. I got the head off last night and started breaking it down but encountered a lot of resistance when removing the intake rocker arm shaft. It even looks like it's scratching the channel it's being removed from. I paused there in order to get some more info before continuing.

    Basically what I want to know is...is that normal? How much resistance should there be? I knocked it far enough to get the first rocker out like instructions dictate, then rotated the cam til all rockers were loose. I watched some videos and it looked like tapping them out was the norm but I was concerned to say the least!
  • jeffnhiscars
    R3V OG
    • Jun 2011
    • 6010

    #2
    Back off all th eccentrics, remove the rocker retaining clips and try to get all the rockers off the cam so there is virtually no tension. The rocker should be a firm hand push. Be careful,not to crack your rocker towers.
    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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    • ewolfe57
      Noobie
      • Jun 2016
      • 29

      #3
      Based on that I'm afraid the end of the shaft may have mushroomed a little bit. Would it hurt it to grind the end down a little bit so it can more freely be removed? Am I looking at replacing the shaft?

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      • digger
        R3V Elite
        • Nov 2005
        • 5912

        #4
        its fine to file off any dags so it doesnt score the bore of the head. just clean any shavings etc afterwards
        89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...

        new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

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        • shoup
          Advanced Member
          • Feb 2012
          • 100

          #5
          I've had some that have put up some resistance. Your head could be warped. Any overheating issues?
          sigpic
          1990 EE30 156V Electric Conversion
          1990 325i #610 Poor Boys Racing/FCP Euro Endurance Racer

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