the lifters colapsing caused loss of oil & a rod went out - mechanic rebuilt engine but then changed cam & lifters thinking gm was the fix to the noise. and was worried then and now that the lifters could come apart again
What is the way aroud it?
The mechanic says that before he put the gm cam & lifters in he tried the washers with no results. They have triied additives and different weight oils with no effect. His thoughts now are to put a high oil pump in.
I would feel lots better if i can resolve this. the noise is worse now than before the lifters came apart the first time.
Thank you for the bullitin but i don't see how there can not be a cause to the problem & after 10 year with only 42k on the truck the lifters failed. I religsly change oil (5/30) and the truck never burned or lost any oil between changes. Oil pressure has always been very good. When the lifters failed I heard clattering, ran rough and the oil pressure droped to 15. I was on a bridge and drove it to thend about 4 miles. The #1 rod bearing was worn. the crank could have been polished but the mechanic said to grind it & replace bearings (part of a complete engine overhaul). He atributed the loss of oil pressure to the top of the 7 lifters being wide open.
yes please put the question back up
thanks so much for your help. have tryed other site & get smart anwers like buy a ford