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-steves-:
Well, first boo boo was made today...... :(

I had a go at the cylinder block, I was really struggling to try to work out what was level when it came to the top and bottom as neither was flat. After a bit of faffing around I "thought" I had managed to sort it out (mistake no. 1). So I faced up both ends and the steam block side. By the time I had finished milling both ends to try and and it flat I ended up a little short on the cylinder block, nothing major though a little disappointing (mistake no.2). Well, then it was time for the bore, never having done this before I took a "best guess" at the cetre of the hole, BIG mistake (mistake no.3). I took measurements from whe existing hole assuming it was central :doh: It wasn't. I ended up with a near prefect bore of .750 through the clyinder block, the only thing is, not only is it offset from true centre, it also goes through the cylinder block at a slight angle :doh: Looks like a new cylinder casting is in order.....though....I may continue onwards and see what happens as I "think" it will still go together and "may" even still run, Its just that the tops and bottom of the cylinders will be offset and the piston will be going up at a maginal angle. Oh well, we live and learn, certainly not put off and consider it a bit of a lesson in needing to take my time :D

saw:
Steves, that is happend to us all. :Doh:
When you aree going to drill the cylinder, you can not expect from the hole, you must measuring from edges. I little tip is, piece of wood and fill the hole, then it's much easier to center the cylinderhole.
Good luck with the rest. :thumbup:

doubleboost:
Great shame that :Doh: :Doh: :Doh:
I think we have all messed things up
It is all part of the learning curve
John

Pappy Frank:
Your doing great. Do not worry about the lack of experience. My first experience with a metal lathe was in High School too, over 40 years ago. I worked as a machinist for a number of years before becoming a paramedic, at which I am retired from.

I still find myself wondering what went wrong with a project now and again, I am still learning, and I have made a few mistakes that make me look like my first day on a lathe.

Keep up the good work, and if you have questions, ask them. Someone can help. :mmr:

Pappy Frank

-steves-:
Well despite my little knock back yesterday, I had a day off today and did a little more between things.

I managed to do the tops and bottoms of the cylinder, the only bit left to do is tap the bottom one with an ME tap. Of course I need to drill them and then tap the cylinder liner as well.

You can see how far my cylinder bore is out on these, though it look worse in real life than on the pictures..

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