BANKS V.A. 0.4ccMILLS REPLICA REBUILD

Here's the engine as we received it from my good friend Richard Tapp in Ozzy.

 

This poor little engine has suffered an onslaught of poor quality in manufacturing or has been butchered by some Harry Homer at some point as the cylinder bore is very poorly finished showing little to no signs of having been lapped after machining, thus resulting in zero compression and a badly damaged piston to boot. 

So to rectify this sad state of affairs we will tool up for the small 7.20mm bore and relap it to achieve perfect roundness and the correct tapers in the bore. After that we'll go ahead and make a replacement piston and contra.