I just installed a rebuilt head which had been resurfaced and flycut
       reducing the overall thickness by about 2mm (guesstimate). I was
       reinstalling the rocker arm assembly and dicovered that there is no
       longer any clearance between the arms and valves. In fact, with the
       adjusters out the arms actually push the valves in when tightening
       the assembly. BTW the pushrods were definately seated in the
       lifters. Has anyone else run into this problem? If so, what was the
       solution? Can a spacer be fitted between the assembly and the
       head? Would it have to be hard steel or would aluminum work? Or
       should the rockers be ground down enough for clearance? Help.

       Thanks,
       Rob

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