Valve adjustment cam lobe position

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  • JubJub
    Wrencher
    • Feb 2011
    • 256
    #1

    Valve adjustment cam lobe position

    So I'm in the process of finally adjusting my valves but I'm not sure where the cam lobe should be in relation to the valve being depressed to make the changes to each. That is to say should the highest point on the cam lobe (where its at the apex of the rounded triangular part) be where I should stop and then make the adjustment to each valve?

    I drew a sketch to show you guys what I mean:


    So when that rounded part (cam lobe) hit and pushed the rocker arm and forces the valve eccentric is when I should make the adjustment to each respect valve right? This is also when the valve is open right?

    ...Sorry if that picture sucks I'm learning all this as I go. Gotta get my feet wet but don't wanna fuck up! Thanks guys
    Tags: None
    • LJ851
      R3V OG
      • Nov 2010
      • 7918
      #2
      No . you are exactly wrong. Adjust with the cam opposite of what you drew, cam lobe pointed away from rocker.
      Lorin


      Originally posted by slammin.e28
      The M30 is God's engine.

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        • Van Westervelt
          R3V OG
          • May 2006
          • 9365
          #3
          Correct reply. Your picture is backwards. By adjusting the valves, you are primarily picking up or 'filling in' the slack or space so that there is only the specified gap. You wouldnt be able to do that if the cam was holding the valve open.
          sigpic

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            • sweet6e30
              E30 Addict
              • Feb 2011
              • 531
              #4


              THIS!
              my build here ---> http://www.r3vlimited.com/board/show...ht=lemans+blue

                Comment

                • JubJub
                  Wrencher
                  • Feb 2011
                  • 256
                  #5
                  Thank you guys!

                    Comment

                    • CHIF8008
                      No R3VLimiter
                      • Nov 2010
                      • 3447
                      #6
                      sweet6e30's pic is correct
                      -FREEDOM- is cruisin at 80, windows down and listening to the perfect song-thinking "this is it"
                      -The Beauty in the Tragedy-
                      MECHANIC SMASH!!- (you all know you do it)
                      Got Drop?? ;-)
                      Originally posted by JinormusJ
                      But of course
                      E30s are know to be notoriously really really really ridiculously good looking

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