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  1. MikeyZ

    2008 Nytro Valve Problem

    74Nitro and Mooseman, thanks so much for your help!! All buttoned up and running good!! I found that the valve clearance was tight both on the intake and exhaust So I took measurements with feeler gauges and resurfaced all the shims to get things back to nominal. Compression was around 130...
  2. MikeyZ

    2008 Nytro Valve Problem

    Hey I took a break from this for a little while but I'm back at it now. I had access to a CMM and had the head measured. It was about .008" out of flat so I resurfaced it again and got it to ~.0015". Valves were straight but seals were rough. Lapped the valves and now I have the head back...
  3. MikeyZ

    2008 Nytro Valve Problem

    Thanks for the info. Shims slipped and I didn’t know. Rotated the crank to engage the tensioner. Local dealer said I may have bent the valves so I will need to pull the head again.
  4. MikeyZ

    2008 Nytro Valve Problem

    Sorry for the late response! I was away on vacation. I’m in Smithville.
  5. MikeyZ

    2008 Nytro Valve Problem

    Thanks for the reply! Definitely had a blown gasket. Yes I resurfaced the head but don’t know how much I removed, I would estimate approx .005”
  6. MikeyZ

    2008 Nytro Valve Problem

    Could valves be bent from the shifted shims? I rotated the crank a few times to get the tensioner to release, didn't feel resistance so I did a leak down test and it failed. That's what lead me to pull cams and check bucket shims. I'm thinking I may have to pull the head.
  7. MikeyZ

    2008 Nytro Valve Problem

    1st image is intake valve with lobe up. Exhaust one looks like it’s closed now but at TDC with timing marks aligned with arrows both valves are open. See 2nd pics, intake then exhaust.
  8. MikeyZ

    2008 Nytro Valve Problem

    Yes, tried all positions while watching camera.
  9. MikeyZ

    2008 Nytro Valve Problem

    Good call, they were out of place, put them back and it looked better but still staying open.
  10. MikeyZ

    2008 Nytro Valve Problem

    Hey guys, I’m a newbie and I’m excited to join this group! I replaced my head gasket last week and I have been struggling to get both intake and exhaust valves closed at TDC. The caps and spacers are in their original order. I used an endoscope camera to confirm that the valves are open and...


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