While pulling the head to replace bent valves, the bolts that fasten the head (2) seemed to have been tighter to remove but had to be done to remove the head to replace valves. When re-installing, two of the head bolts never tightened so the treads in the block were stripped. I went to several engine machine shops, and nobody was able to repair this problem as due to special tool needed to get down deep into this section of treads. Is this true or can I repair myself by heli-coiling?
Saturday, August 3rd, 2013 AT 9:26 AM