-----Original
Message-----
From: Rotary motors in
aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Dean Head
Sent: Monday, April
19, 2004 7:29
PM
To: Rotary motors in
aircraft
Subject: [FlyRotary]
Engine
storage
Group/Rusty,
We’ll after seeing
David’s post on the corrosion
issue I became paranoid about my engine. I bought one of the
“generator” engines from RX-7 Specialties (from a previous member
of the group). Never giving a thought about water being in the bottom
of the
engine due to the fact that it had been ported and appeared to be
preserved (i.e.
I could see a fair amount of transmission fluid thru the exhaust
ports). Due to
the machine work done the engine it would have to have been
disassembled. Also,
there was evidence of the gray sealer being used extensively. It does
not
appear to have been run post the modifications.
Well cut to the chase…I
removed the bottom plug on the
center housing and what did I find! Damp black “stuff”. I
investigated with a q-tip, damp black stuff no water. I inserted a
dowel in the
hole and more damp black stuff. After poking at it for a bit I rolled
the
engine on its side and out came maybe a ½ oz or so of clear water and
black
stuff (nothing reddish). Looking into the rest of the water jacket
ports no
moisture just a bit of red rust like you would see in any engine.
So, think I should
disassemble it now and see what the deal
is? I intended to disassemble and install Tracy’s apex seals in place
of
the ceramics. But I had thought to wait until I’m ready to attach it to
the Cozy. (quite a while in the future). I suppose I could tear it down
and
then pickle it in oil until I’m finally ready to reassemble and run the
engine. I would never feel comfortable flying it without a through
internal
inspection anyway.
I wonder if the water
came from internal condensation over
the past 3 years? It is stored in my shop which is not air conditioned.
Thoughts?
Thanks,
Dean Head
Cozy MK4
BKV FL