I must say that the rust builds up quick inside the cylinder walls. After
the aircraft had sat idle for six months, I inspected my engine with that
cheap borescope that they sell at ASS (ProVision series), and I could
definitely something that looked like a disaster in the making. So, I
decided extreme measures: spray tons of WD40 oil inside the cylinders
whenever I can, and build some preservation spark plugs. These are fake
spark plugs, that end with a tube full of moisture absorber. At present,
that absorber is... rice! But I will fill them soon with silica gel. By
the way, if you need plenty silica gel, jut go to a luggage shop. There
are big bags of them in every suitcase they have, so, just persuade them
to empty a couple of them for you.
Serge Vidal
KR2 "Kilimanjaro Cloud"
Paris, France
"Barry Kruyssen" <k...@bigpond.com>
Envoyé par : krnet-bounces+serge.vidal=sagem....@mylist.net
2005-03-20 23:25
Veuillez répondre à KRnet
Remis le : 2005-03-20 23:26
Pour : "KRnet" <kr...@mylist.net>
cc : (ccc : Serge VIDAL/DNSA/SAGEM)
Objet : Re: KR> Safety first
I agree with Orma, strip the motor.
I purchased an engine that had been sitting for 4.5 years plus. When
started it, the rust on the crank went through the bearings and seals,
destroying the crank, rods, damaging the pistons and barrels.
----- Original Message -----
From: Orma
engine has not ran since 1982.
Hello Net
With an engine that has not run in the past 23 years, I would look a lot
deeper then the items mentioned in the post. If the engine was pickled,
it
would probably be ok. If not, then the walls of the steel cylinders
might
have enough rust to cause it to fail at some point after the engine is
back
in service. I have opened several old VW engines and have always found
that the crank is free of rust if the engine has had oil. On the other
hand, the cylinders always had rust and the lifters were in bad shape
also.
The hot and cold cycles of winter and summer build up moisture as a
normal
cycle. Lycoming had engine failures due to this hot cold cycle allowing
moisture to collect on the crank shaft and cause microscopic pitting
corrosion deep enough into the crank to allow failure. The cost of
opening
that 23 year old case is less then $100. That seems like cheep
insurance
from my view point. As a professional AP/IA I would hesitate to put my
name
on an engine that sat that long without someone looking inside.
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