Hi
Jim,And thanks for the update, quite a few members here will be waiting to here what the local guy has to say.

It is amazing what the 'cow-cockies' come up with at times to keep something running, or to meet their needs in the field.
I once bought a Model T Ford engine from a cocky for a restoration I was doing at the time, pulled it down and found the number 2 piston made of iron bark timber. It also had a piece of circular flattened corrugated iron nailed to the top, as the spark plug had burnt a hole right through it at some stage...this would have occurred sometime during WW2, when parts were hard to get.

As some wise person once said, " Necessity is the mother of invention"
All good stuff.