Engine dryers

Anyone have any comments or experience with these things that blow dry
air into the engine?

http://www.flyingsafer.com/2065.htm

I'm worried since I've only been able to fly every 2-3 weeks recently.

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sounds like the worst $450 I could spend
if you are flying every two to three weeks, and the oil temperatures are
reaching normal operating temperatures for at least 30 minutes, and the oil
changed every 50 hours or at least twice a year. Then excess moisture and
other contaminate should be taken care of in the oil, and running the engine
keeps the upper parts of the engine coated with a film of oil.

Why would I want to pump any air through my engine. And they are not blowing
"dry" air, just air of a lower humidity.

BT

"Charles" wrote in message
news:stCRg.986125$084.605872@attbi_s22...
Anyone have any comments or experience with these things that blow dry
air into the engine?

http://www.flyingsafer.com/2065.htm

I'm worried since I've only been able to fly every 2-3 weeks recently.

--

Aviation Consumer did an evaluation in the current issue. They liked
them, and recommended them, although they didn't test the brand that
you posted. They said if it pumped dry air as well as the others, it
should work fine. Also, they said the 100 watt bulb in the cowl flap
trick works too.

Bud


Charles wrote:
Anyone have any comments or experience with these things that blow dry
air into the engine?

http://www.flyingsafer.com/2065.htm

I'm worried since I've only been able to fly every 2-3 weeks recently.

--

the "humidity" level around here averages 0-5%.

how can it get any dryer.. I'd be afraid of drying out the oil film that
rests on the exposed metal

are we trying to keep an engine warm for the next engine start?

or preserving the engine by removing unwanted moisture

BT

wrote in message
ps.com...
Aviation Consumer did an evaluation in the current issue. They liked
them, and recommended them, although they didn't test the brand that
you posted. They said if it pumped dry air as well as the others, it
should work fine. Also, they said the 100 watt bulb in the cowl flap
trick works too.

Bud


Charles wrote:
Anyone have any comments or experience with these things that blow dry
air into the engine?

http://www.flyingsafer.com/2065.htm

I'm worried since I've only been able to fly every 2-3 weeks recently.

--

The OP asked about...."with these things that blow dry
air ".....

I live in the Mojave desert, where the air is very dry also, so a dryer
is usually not needed. But for those that live in a wet climate during
winter they might be a worthwhile thing. I have no opinion or
experience with them, I just thought that since the OP is interested, I
would point him towards an information source he might find helpful. As
for being afraid of drying out the oil film on the engine internals, I
don't know. Seems that for rust to form you need moisture. No moisture,
no rust, I would think.

Bud


BTIZ wrote:
the "humidity" level around here averages 0-5%.

how can it get any dryer.. I'd be afraid of drying out the oil film that
rests on the exposed metal

are we trying to keep an engine warm for the next engine start?

or preserving the engine by removing unwanted moisture

BT

wrote in message
ps.com...
Aviation Consumer did an evaluation in the current issue. They liked
them, and recommended them, although they didn't test the brand that
you posted. They said if it pumped dry air as well as the others, it
should work fine. Also, they said the 100 watt bulb in the cowl flap
trick works too.

Bud


Charles wrote:
Anyone have any comments or experience with these things that blow dry
air into the engine?

http://www.flyingsafer.com/2065.htm

I'm worried since I've only been able to fly every 2-3 weeks recently.

--

wrote:

Aviation Consumer did an evaluation in the current issue. They liked
them, and recommended them, although they didn't test the brand that
you posted. They said if it pumped dry air as well as the others, it
should work fine. Also, they said the 100 watt bulb in the cowl flap
trick works too.

Bud


Hmm. I already have a heater, what's the bulb trick supposed to do?
There seems to be no concensus on whether heat makes matters better or
worse.

--

Charles wrote:
wrote:
Hmm. I already have a heater, what's the bulb trick supposed to do?
There seems to be no concensus on whether heat makes matters better or
worse.

I think it drives out moisture. However, the paradox is that you
probably need to be in a hanger to leave a bulb running 24x7, yet being
in a hanger already means your much drying than being outside. Its
really the outside guys who need the most help.
Also, from my personal experience the moisture is much more damaging to
the avionics than anything else. If I don't fly on a regular bases in
the winter, my #2 comm display acts strange.

-Robert

Robert M. Gary wrote:
Also, from my personal experience the moisture is much more damaging to
the avionics than anything else. If I don't fly on a regular bases in
the winter, my #2 comm display acts strange.

*** I keep two "Eva-Dry" dessicant pods in the airplane. These are
plastic-cased units. They have a color-change window that tells you
when they're full. And an internal heater so you can take them home
and dry them out. I have a spare set that I keep at home. During the
summer they last a month, in the rainy season more like a week.

Since I started using the dessicants, the cockpit is always dry, no
mustiness, no
haze behind instrument faces and no avionics woes.

- Jerry Kaidor

Robert M. Gary wrote:
Also, from my personal experience the moisture is much more damaging to
the avionics than anything else. If I don't fly on a regular bases in
the winter, my #2 comm display acts strange.

*** I keep two "Eva-Dry" dessicant pods in the airplane. These are
plastic-cased units. They have a color-change window that tells you
when they're full. And an internal heater so you can take them home
and dry them out. I have a spare set that I keep at home. During the
summer they last a month, in the rainy season more like a week.

Since I started using the dessicants, the cockpit is always dry, no
mustiness, no
haze behind instrument faces and no avionics woes.

- Jerry Kaidor

The 100 watt bulb trick is to merely place a drop cord with a 100 watt
bulb inside the cowl while parked and leave it on 24x7. This was first
suggested as a cheap and easy way to preheat, especially if 2 100 watt
bulbs were used. Simply put plugs or rags or such in the cowl openings,
place a blanket or 2 over the cowl, and while not as good as a good
preheater, did keep the engine at a temp above the desired level.
Aviation Consumer did an article on this in the past. They used the
same trick when they were evaluating the dryers, and found that as with
the preheaters, this trick did not perform as well as the devices
designed for that purpose, but did keep moisture out of the crankcase.
They found that this trick kept the air temp inside the crankcase from
5 to 10 deg above the dew point, so no moisture collected on the engine
internals.

Bud

Charles wrote:
wrote:

Aviation Consumer did an evaluation in the current issue. They liked
them, and recommended them, although they didn't test the brand that
you posted. They said if it pumped dry air as well as the others, it
should work fine. Also, they said the 100 watt bulb in the cowl flap
trick works too.

Bud


Hmm. I already have a heater, what's the bulb trick supposed to do?
There seems to be no concensus on whether heat makes matters better or
worse.

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