Cam timing off

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  • James_M20
    Noobie
    • Nov 2014
    • 15

    #1

    Cam timing off

    Recently began a headgasket change that turned into a full head refresh. When I removed the cylinder head tdc was "retarded" one (belt pully notch one behind mark on head) the crank was perfectly at tdc. I decided with a buddy of mine it's better to put it back that way we found in then to try and reset it. Should we have reset the cam at tdc? Car has been running and seems to idle ok but someone told me the timing sounds off.
    Attached Files
  • James_M20
    Noobie
    • Nov 2014
    • 15

    #2
    Sorry the pictures sideways (can't do anything right)

    Comment

    • nando
      Moderator
      • Nov 2003
      • 34827

      #3
      you should have reset it. 1 tooth is like 6 degrees off. you will either be down on power or down on torque, plus pushing it close to the edge of pistons & valves hitting.

      moving the cam 1 tooth with the belt disconnected won't hurt anything.
      Build thread

      Bimmerlabs

      Comment

      • James_M20
        Noobie
        • Nov 2014
        • 15

        #4
        I just went wirh the attitude put it back together the way you found it

        Comment

        • noid
          E30 Mastermind
          • Feb 2008
          • 1529

          #5
          Two wrongs don't make a right. The timing should be set properly.
          Your resource to do-it-yourself and interesting bmw and e30 stuff: www.rtsauto.com

          Your resource to tools and tips: www.rtstools.com

          Comment

          • itsonlygeorge
            E30 Modder
            • Feb 2014
            • 852

            #6
            Fix it. Mine was like that, off one tooth retarded, and it ran so much better after I adjusted it back to TDC.
            sigpic
            1987 325e Lachssilber w/ MarkD chip and late bumpers, Zender EVO spoiler, s3.25 LSD

            Originally posted by nando
            I don't think there's really strong evidence that ZDDP harms cats.

            Comment

            • Exodus_2pt0
              R3V Elite
              • Dec 2011
              • 5943

              #7
              You really need to fix that. It isn't something you just take care of next time around.

              But hey, your car.
              No E30 Club
              Originally posted by MrBurgundy
              Anyways, mustangs are gay and mini vans are faster than your car, you just have to deal with that.

              Comment

              • StereoInstaller1
                GAS
                • Jul 2004
                • 22679

                #8
                Did you use the instructions for cam timing as shown in the Bentley?

                The Bentley is wrong

                Closing SOON!
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                Thanks for 10 years of fun!

                Comment

                • cWalk3r
                  Advanced Member
                  • Jun 2014
                  • 178

                  #9
                  It's simple to fix. Why not get it done. It took me a couple times to get my timing right. Every time it would move and didn't realize there was a mark on the block for the crank haha so after getting the cover back on I had to take it off and make sure everything stayed in place.

                  Comment

                  • James_M20
                    Noobie
                    • Nov 2014
                    • 15

                    #10
                    Originally posted by itsonlygeorge
                    Fix it. Mine was like that, off one tooth retarded, and it ran so much better after I adjusted it back to TDC.
                    I am going to fix this immediately thank you all for the advice. Good to know George hopefully my situation will be the same

                    Comment

                    • Dj Buttchug
                      R3V OG
                      • Jun 2010
                      • 7631

                      #11
                      Originally posted by nando
                      you should have reset it. 1 tooth is like 6 degrees off. you will either be down on power or down on torque, plus pushing it close to the edge of pistons & valves hitting.

                      moving the cam 1 tooth with the belt disconnected won't hurt anything.

                      Turbo M42 Build Thread :Here
                      Ig:ryno_pzk
                      I like the tuna here.
                      Originally posted by lambo
                      Buttchug. The official poster child of r3v.

                      Comment

                      • nando
                        Moderator
                        • Nov 2003
                        • 34827

                        #12
                        since the belt is new you don't need to replace it, assuming the tensioner/spring is also present and in good/new condition.
                        Build thread

                        Bimmerlabs

                        Comment

                        • Cephas
                          E30 Modder
                          • Apr 2012
                          • 878

                          #13
                          Originally posted by StereoInstaller1
                          Did you use the instructions for cam timing as shown in the Bentley?

                          The Bentley is wrong
                          Can you please explain how? I'm going to be doing this job in a few weeks and was going to use the Bentley as my guide. What is wrong about their steps?

                          Thanks!

                          Comment

                          • turbo55
                            Wrencher
                            • Jul 2014
                            • 223

                            #14
                            Do you have an aftermarket tuned chips plugged in? I hear that with some of them you may want to have the timing off intentionally.

                            Comment

                            • ForcedFirebird
                              R3V OG
                              • Feb 2007
                              • 8300

                              #15
                              Originally posted by turbo55
                              Do you have an aftermarket tuned chips plugged in? I hear that with some of them you may want to have the timing off intentionally.
                              No you don't.
                              john@m20guru.com
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                              Transaction feedback: Here, here and here. Thanks :D

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