Problem
solved! Many thanks to those responded with a variety of good advice. A gre
at
team effort enabled me to return to the aeroplane equipped with a comprehen
sive
list of potential causes and solutions. I was able to quickly work through
the
list until I found the problem and fixed it.
>From the
team I am able to award =93The Man of the Match=94 to Neil France for his
recollection that he knew someone who had a similar problem caused by a bad
earth to the ignition solenoids and sleeves=94.
Whilst
re-installing the engine I had replaced the fuel pipes and the carb heat pi
pes
before reconnecting all of the earth leads. This left no room to replace th
e
earthing screw and leads in the original position. No problem! I connected
the
battery earthing loom to a more convenient position on the engine=2C and th
e ignition
earths to another handy position.
Retrospectively=2C
I can see that the group of ignition connectors alone are thinner than the
original group=2C and somewhat oxidized at that. The earthing screw had
shouldered before clamping the earth leads causing an inadequate earth.
Easy when
you know how=2C isn=92t it?
I did find
the info. sent to me really useful=2C and I have it in mind to create a flo
w
chart from it all=2C which others may find useful with fault finding for ro
ugh running in the
future. It is more common than I thought.
Thanks to
Ivor Phillips=2C Bob Harrison=2C Duncan McFadyean=2C Dave Watts=2C and Barr
y Tennant.
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