Originally Posted by harley1rocker
the valve spring retainers are fairly thick,doubt its that.my truck had broke rings,im not sayin thats a ring,but if your smokin,got low compression,then you deff got sumthin going on there..did you run contribution??? get you a cherry picker and pull the heads..i did mine.thinkin it was a valve,and thinkin i would get away with just reworkin the heads,not a chance.pulled the heads and piston was all chewed up from a peice of ring.
yeah I did a contribution test and just came back with 3 and 8 cylinders but they had compression about 360psi when I did the check. I was hoping to find out what this thing is and crossing my fingers I have a head issue and not a ring issue. What does a head on these things weigh, 100lbs or so? Also, how much harder is it to getting the driver side head off, I have pulling injectors down to an art now......
Also, anyone have a diagram of where this shim would be in the head, looked all over but don't really know where I need to look either.