Yeah Grumpy it does look worn, fortunately not as bad as it looks smile. The last photo most of the lines there are gas blow-by marks I ran the hone over it and they went by the way side after 5-10 seconds of honing grin. The wide groove (mark) was "I think" caused by a burr/sharp edge above the gudeon pin bore, which may have been wiping the oil away???

I had to finish off the honing with a hand drill as the pedastall drill was too quick for me today at 210 RPM to get the hatching just right, although I have perhaps over compensated and ended up a bit steeper < than ideal. The wide mark which did worry me greatly goes from not there at the top to faint towards the bottom of the "usefull" stroke. I will try the camera again now have cleaned up, for your parusal and comment. I will mic up the bore too. I dont think (hope) it would be anywhere the 0.010" I guess maybe 0.003 - 0.005"? Give me an hour or so and we will see how good the estimation is.. eek

I share your Pain RE: V8, I did a 253 on the cheap years ago... lasted about 30,000Km all mic'd up to OK upper limit at the time, but flogged out the new piston grooves and ring lands, and over heated the rings too I think, as they came out with little to no tension on them....no oil burning but too much blow by... cry

Last edited by FAST GRASS; 22/07/12 04:22 PM.
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