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Tim Jones of Jones Engineering in Oswestry made this
Exhaust Nozzle for me. Its made from 4mm stainless steel,
the amount of work that has gone in to this is unbelievable.
If any of you lot see him, buy him a pint or two!
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Side profile of the engine, pretty much as it will
be seen on the back of the pick up. With some polishing
of the aluminium and chrome parts that are already on
the engine and a cleanup of the cabling, I'm hoping
that the engine will be a eye catching thing of beauty!
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| Today was the
day I was going to have the first dry run of the engine,
just a turn over with no ignition, what could be simpler?
Great news, it won't turn over! just my luck. I had the
batteries checked by the supplier and they were fine,
so it must be the starter, time for a look at its electrics.
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This is what the starter looks like when removed from
the engine. It will need a sand down and a coat of paint
for cosmetics, apart from that the construction seems
to be sound.
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I have done a
test of the starter and it is definitely faulty. At a
guess the Armature coils are shorting, as the starter
will not turn, even when removed from the turbine. This
is very strange as it appeared to be working fine when
I first purchased the engine and as this is the first
time some volts had been put through it since then, I'm
left clueless as to why it has developed this fault. The
debris you can see is paint that has peeled off from 30
years of use.
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Thanks to James
and Richard Everett for being my saviors! A couple of
nice blokes from Ipswich, they had a brand new armature
in stock for my 30 year old Rotax Starter, surely that's
got to be a bit lucky! Have a look at their web site located
at www.everettaero.com
Pictured above are the 2 Armatures, old and new.
Ray Jones of Snailbeach has now put the starter back together
for me, now its time to get on with the electrics.
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With the free
running turbine now redundant, the loom that connected
to it has now been cut off and terminated in a Hermetically
sealed box! Makes the wiring a lot neater to look at.
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From the left
- Thermocouple, Nimbus Wiring Loom, 24 Volt Supply and
cable which at some point power a fuel priming pump. |
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1/2" Quick
Release Connector for the fuel supply. Things like this
make mounting and removing the Nimbus a breeze. At the
moment I can mount the Nimbus on the Pickup and connect
it all up within 3 minutes, not that time is really an
issue.
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A picture showing
the Thermocouple in place. I suspect the it may be a little
to close to the gas generator section and may need spacing
out a few inch's. |
MGF
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