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    Cam install question

    I’m getting ready to install the Riot Racing cams in my 60k mile s52. I plan on resealing my vanos and cleaning/inspecting my lifters. I will leave valve springs alone. I will have all the appropriate tools and have the FSM, “101 performance projects”, and a few YouTube videos. I have never done cams but have done enough various automotive work that I feel comfortable. I will obviously rotate the engine several times before start-up to confirm no issues. This is my question:
    -I will be using the “pelican method” (sweet spot) to remove/install cams. In “101 performance projects” the another states that if you are performing the install with the head mounted on the car, to go 45 degrees past TDC to prevent Piston to valve interference when rotating the cam. My question is how will I insure timing once reinstalled? Mark cam gears/chain/crank with a paint pen, then rotate to TDC and use cam blocks to confirm? Since I am rotating the cams independently of crank at a certain point the cam blocks will be of no help. Thanks in advance.
    "Broke into the wrong God damn rec room, didn't ya you bastard!"

    #2
    once cams are installed, lock the cam for tdc. Now rotate back the crank to tdc..place locking pin.. proceed with the vanos install.
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      #3
      Originally posted by m3boost View Post
      once cams are installed, lock the cam for tdc. Now rotate back the crank to tdc..place locking pin.. proceed with the vanos install.
      Sanity check:
      So rotate crank to 45 degrees past TDC, remove timing chain, rotate cams to “sweet spot” and remove and install, rotate cams back to TDC and install blocks, rotate crank CCW to TDC?

      I know CCW rotation of crank is normally a no-no but an email pelican sent to someone says it’s not a big deal for this small amount.
      Thanks
      "Broke into the wrong God damn rec room, didn't ya you bastard!"

      Comment


        #4
        Originally posted by Rugbyfan View Post
        Sanity check:
        So rotate crank to 45 degrees past TDC, remove timing chain, rotate cams to “sweet spot” and remove and install, rotate cams back to TDC and install blocks, rotate crank CCW to TDC?

        I know CCW rotation of crank is normally a no-no but an email pelican sent to someone says it’s not a big deal for this small amount.
        Thanks


        Just did this, and yes you are correct. That is what I did and it all worked out for me. Move the crank about 45 degrees clockwise with cam locks on and then you are free to rotate the cams as much as you please to the sweet spot. When you are at the sweet spot, the number 6 cylinder (next to firewall) cam lobes will be facing straight up, and the number 1 cylinder lobes are the only lobes acting on a valve, though they are not "straight down", so all the lifters but cylinder 1 should be able to spin freely in there bores with your finger and your ready to undo all the caps but the one that has force on it, then a quarter turn each until the last cap is off.

        Comment


          #5
          Thanks, I greatly appreciate it. Did you replace lifters, clean them or just leave them be?
          "Broke into the wrong God damn rec room, didn't ya you bastard!"

          Comment


            #6
            Originally posted by Rugbyfan View Post
            Thanks, I greatly appreciate it. Did you replace lifters, clean them or just leave them be?
            Personally, I left them as is and I don’t have any lifter ticking or anything. Had a little bit on first start up but went away after 10-20 seconds

            Comment


              #7
              I’ll do the same, maybe clean them, at most.
              "Broke into the wrong God damn rec room, didn't ya you bastard!"

              Comment

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