Phill L

Greetings Mark,   So far, so good.  This is my first engine, but work is progressing fairly smoothly.    The only gotcha that i've come across so far is with the screw placement for the cylinerhead / crankcase interface.   Luckily I discoverd my error in TurboCad and not the workshop!   These screws are placed on an _8mm_ radius.  (the magazine is transcribed incorrectly, mark's original plans are fine)  and _not_ at  90o.   The rest of the build is progressing nicely, although I have borrowed some of the idea's from Ron Chernich's fantastic step-by-step on modelenginenews.org  Building the ML Midge Diesel   Modifications include, splitting the crankshaft at the journal and using a threaded shaft to carry the prop driver and spinner and a hollow, thin-walled contrapiston (also described on ron's site)   I am considering milling the crankshaft webbing to counterbalance the rotating mass, but I'm not sure if the increase in crankcase volume will offset any gains in stability... any thoughts?   Phill L