Hi all What I intend to do is to get a piece of flat steel plate and drill 4 holes to bolt onto the cylinder in place of the head. The steel plate was to have a 12 mm hole drilled in the centre and a nut with fine thread welded on .The get a bolt and screw down onto the piston and see if it will push out . But after some more though and to save a bit of work I am looking for one of those cyl heads off later model with the central spark plug hole . Then all I will need is along enough bolt with the same thread as the 14mm spark plug and I will be in buisness without any drilling or welding .
I had 2 other ideas but will not bother you with all the gory details and just see if the cylinder head idea works .
Any one know the pitch description for the 14 Mm plug???/// Cheers Joe
