ok, so the next instalment, thought i'd stick it ere.
after a good outcome from the dealer, followed by a trip out last sat, a cb was needed.
sue offered to help fit it,

eek

while I swapped a brake pipe for the mot on her jalopy.
so after an evening in the workshop, much discussion about drilling holes, coffee drunk, talking about irrelevant bollocks, discussing the state of ****ing in the bog, etc, it came time to go home.
i'd bolloxed a wheel cylinder on sue's motor so that was staying put for the night, sarah got in dave to find a flat battery.

jump leads put on, tried winding it over, and it sounded like both batteries were flat. second battery on the circuit (3 in total now!) and that was the same.
quick test of batteries with the meter, 5.6volt on dave, 12.3 on one of mine, 12.7 on't other.
all the lot dropping to about 7 volts trying to start it!
to cut a long diagnostics short, checked engine for tightness, then removed heater plugs. turns fine without compression. left it in bits, and ended up with another detour on me way home.
be checking for bent valves / push rods this morning.
back later.........