On Thursday, 17 November 2016 10:39:42 UTC, Simon Mason wrote:
My Dad who is now 95 used to fix Spitfire engines after WWII as he was trained by RR.

As a fireman in civvy street, he built me a 8.5 reflector out of plywood that he made into a telescope, plus an observatory and motor drive for it, a garage and extension bedroom on top all wired in and with a fire sprinker.

https://goo.gl/maps/5ap1QeBts6u

He could tune 4 pot bike engines by ear with a screwdriver held to it and he rebuilt his Alfasud boxer by hand after wrecking it by redlining it.

Which four pot bike engine would that be?