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  • Cam timing marks imperfect alignment

    Hello,

    My Intake (E) cam is a little bit misaligned with the notch. Exhaust A is fully aligned. Is this by design or there is a problem here, it means that the intake valves are opening very slightly early.

    I believe shifting the E cam by one on the timing chain will move it further to the other side of the notch.

    Thanks,

    Mehmet
    Attached Files

  • #2
    they are all like that due to chain stretch, timing guides wear, head/block skimmed, head gasket crush thickness.....etc etc etc

    Those are just right. You should be good to go.

    T

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    • #3
      Thank you for the answer!

      Comment


      • #4
        I'd say they're pretty good!
        Ron ///Man

        • '91 Gr-A Former CiBiEmme / Ravaglia - Sold
        • '90 M3 Faux EVOII Alpineweiss 36K Orig Owner - The Queen
        • '91 M3 Faux EVO III Brilliantrot Euro Driveline - The Rocket
        • '91 M3 Faux Gr-A Club Racer DM - The Alter EGO
        • '89 M3 M3T / ITR Club Racer
        • '94 Spec E36 - Eh....
        • '09 M3 - Tarmac Terrorist
        • '04 330Xi Sport 6 Speed - Snowmobile
        • '07 530 Xi - Highway Star
        • http://www.imwcarparts.com/e30-m3-parts.htm


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        • #5
          I know that if you have the 3 degree exhaust cam, it will show as if the alignment mark is off.
          Not sure if that’s your case.

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          • #6
            Actually, I have the stock setup, did not change the cam.

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            • #7
              Oops,
              I meant the exhaust cam gear.

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              • #8
                Sorry I am answering late, no the gear is stock, also the intake notch is very slightly off, I assume it would be way off with a different gear.
                Actually I am trying to solve my rough idle problem and also a low vacuum, this little variance creates a valve overlap but very slightly, I do not know if that is enough to make the idle rough and vacuum low.

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                • #9
                  The timing although not perfect is still well within acceptable limits unless that is you want to replace the slightly stretched timing chain.
                  If you are thinking this is causing some sort of issue or is an issue then be assured it is not and wont be, all is good.
                  Dave.

                  E30 M3 1987
                  Mini Clubman GT
                  BMW E36 323 Msport
                  Toyota Corona
                  KTM 200EXC
                  Honda CB50 (1979)

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