[Spenny_b]

Thanks Tony, really appreciate you conducting such a test for me (and my sanity!)

I have half-rotated the crank a number of times but of course, with a single pair of hands you do need to keep stopping to ensure the rods don't snag the spigots and to keep tension on the timing chains.

So...my next test will employ the (not so) glamorous assistance of my Brother and Father, so that I can freely rotate the internals.

Will keep you posted.

To Marks point about a magnetic floor sweeper...good call...to start with I will roll out the chassis and lift the pit-boards from the floor....the floor itself is concrete and very clean, but maybe it did drop right the way through #6 spigot and out of #3, and into a crack between boards....in my panic and fantastic barrage of swearing, maybe I missed the "ping" of it hitting the ground/board?

Again, will keep you posted.

Bloody engine. [grabs beer]