32x40 H Gas Engine

[Brian]

O K so now we have the blank size within .002" of spec , the lump at the top will be the rocker arm support.
Hang on you have not got the updated drawing. this is changing as we go along.
   

I think that's it hard to read these thumbnails.
now the pic
   

This was then marked for the center of the bore to take the liner.
   

Then carefully set up in the mill and a pilot hole drilled.

   

Finally opened up to 12mm,

   

That's all for now

Brian