Originally Posted by Silver Surfer
OK I re-checked the numbers using a different technique and they all came back very similar if not the same. In fact when I average the first set of numbers, the second set larger by .001" on both left and right cylinder banks.
Left bank average is .022-.023"
Right bank average is .019-.020"
If the machinist took .020 off and the pistons are now known to be 1.548" CH, then that leaves a calculated clearance of .017". Oddly enough, the only cylinder to do this is the one that has the replacement rod. It is constant on the fore and aft measurement.
I know this probably seems trivial to you. But I am newbie and the only way I am going to learn how to build a proper engine is to sweat the details. If I don't pay attention now, then what good is it for my next engine? Perhaps part of the learning curve is selecting a good machinist and dealing with the ensuing disaster.
Welcome to the world of going nuts, You'll discover that we do a lot of measuring with a micrometer while cutting with an ax kind of stuff.
Yes finding a reliable machinist is one of the most fundamental efforts. With that are the tools to measure everything, given places like Harbor Freight it's a lot less expensive to by precision measuring tools than it was 50-60 years ago. These Chinese tools probably don't hold up for a life time but they are pretty accurate and will last for the sometime builder till you get going and can afford the high buck stuff.
Lots of good books out there on engine blue printing which will take you through the processes that insure an accurate and quality build. As an example; this book by Reher-Morrision is pricey but very current, it is written as text book so it goes in deliberate learning phases http://www.amazon.com/Reher-Morrison.../dp/0972343288
. Consider an investment in your automotive library to be as important as tools as it feeds your brain which is the tool you'll use the most often of all.