thanks again LARRY
A lot of the things you mention I have done. The crank I held in lathe and steady rest and with dial indicator measured for bent crank. Lathe in neutral and turn chuck by hand. I had 0.001 on center bearing - book said up to 0.002 was ok. The crank has new bearings and they where within spec. by book. this includes con rod bearings. I have new pistons (.25 metric over- about.010") rings, wrist pins and wrist pin bushings. Made a piece on lathe to push out old wrist pin bushings and install new. These felt really good after install. The machine shop did a real good job of boring the block and touch up valves and seats ($150.00) The new rings where right in middle of book spec when measured in block bore. I do not own a depth gauge. To measure piston above block- set a piece of key stock on top of block , zeroed dial indictor and turned pistons through TDC. and watch dial Front .022 , rear.0235 - (different by .0015). I just asumed that to be a reasonable amount of diff.
Right now I do not know how I could measure bottom dead center with a dial indicator only, to compair con rod lenghths. The rods I am using are out of the APU unit. This engine was still running(sort off- just plain wore out) but did not have a melt down like the other when i found. This morning at shop having a coffee and wrinkling my forehead while looking at this engine I found a small piece of paper in plastic bag of gasket kit that mentions a shim for head gasket-- what are they talking about?? The book says piston to head clearance should be. 0197 to .0279-- The timing on this engine is gears with marks. I have checked a couple times It is on punch marks. With engine together crank, bearing, pistons with rings installed and valve cam and injector cam in place youcan easyily rotate and can not feel any tight or loose spots. Going to go back to shop and maybe switch pistons per hole and check heights again. I have a lot of double parts-- cranks,cams, gears, injectors and inj. pump-- so i can do a lot of part switching---I think something is wrong with this head to piston clearance. When I had cardboard between piston and head I could turn past TDC both holes,just tight on rear hole.
Thanks again for help Larry B