I have finally re-listed after my move = from Seattle to Vermont. My bus ('91 syncro westy) made the trip no = problem. However, after not very long after the trip I began hearing what = sounded like lifter clacking (like you hear at start up) which did not go away = for a while. Then it progressed to a very loud clack and I stopped = driving it. Anyway, I pulled the valve cover and rocker arms and have = found what I think is the problem. Two of the four lifters on the left bank are = soft to the push of my thumb. They are squishy. As I understand it = from Bentley, this is not right. So, I also understand from = Bentley that removal and replacement of the push rod tubes and lifters can be = done with out removing anything more than the rockers and the old push rod = tube. I assume you will likely destroy the old tube taking it out right? But a new one can be inserted with out removing the head? = This would save so much hassle if it were true.