Today's Message Index:
----------------------
1. 03:57 AM - Piet side view (Jack T. Textor)
2. 04:10 AM - Re: picture wanted (harvey rule)
3. 06:03 AM - Re: Starting Troubles. (Mark Blackwell)
4. 06:23 AM - Re: Pietenpol-List Digest: Carb Heat (TBYH@aol.com)
5. 07:53 AM - Re: Re: Pietenpol-List Digest: Carb Heat (harvey rule)
6. 11:25 AM - photos (Oscar Zuniga)
7. 11:39 AM - Re: photos (Bill Church)
8. 11:44 AM - beautiful women fly first........ (Michael D Cuy)
9. 12:10 PM - Re: beautiful women fly first........ (harvey rule)
10. 06:13 PM - Re: Starting troubles (kmordecai001@comcast.net)
Message 1
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Can't remember who requested, but here is a side view picture I took at
Brodhead in 04.
Jack Textor
Message 2
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Subject: | Re: picture wanted |
I hope this helps a little;it's the only one I could find.
Oscar Zuniga wrote:
>
> --> Pietenpol-List message posted by: "Oscar Zuniga" <taildrags@hotmail.com>
>
> Anybody have a picture of a side view of a Piet (any Piet) with a passenger
> in the front cockpit? Please send it to me off-list or if it's on a
> webpage, send me the URL. I'm trying to get an idea of geometry and general
> physical arrangement.
>
> Thanks!
>
> Oscar Zuniga
> San Antonio, TX
>
>
>
>
>
Message 3
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Subject: | Re: Starting Troubles. |
Gary Carb heat only enriches the mixture when there is actually some heat there
to apply. The heat from most systems comes from the exhaust manifold. Hot
air is less dense than cold air so the fuel air mixture is enriched. Unless
the engine has run enough to warm the exhaust system, there is no heat. The
same thing can happen with an engine failure due to carb ice. Unless the heat
is applied fairly quickly after the failure, the engine exhaust manifold can
cool and then no heat is available leaving you with an unplanned landing. The
heat comes from switching the path the air takes to the carb at the carb heat
box. It does by pass the filter though and if a filter is clogged, it will
breath more freely. Well I guess it would at any time but it shouldn't be significant
if all is well with the filter.
----- Original Message -----
From: Gary Gower
To: pietenpol-list@matronics.com
Sent: Tuesday, February 14, 2006 8:21 PM
Subject: Re: Pietenpol-List: Starting Troubles.
I think Steve has a point in this posting. I have heard about it for long time.
The reason could be that the carb heat, making the air go though all that places,
makes it dificult and doing some suck of the gasoline in the carb, similar
as a butterfly choke acts, orf the hand over the old grass cutter engine, this
to get more gasoline in the system, Some pilots use it in cold weather when
they think that too much primer could flood the engine with crude gasoline.
Using the carb heat will finally make a little richer than normal air/gasoline
mist go inside the ignition camera, helping the correct fire and for this reason
the start of the engine.
At least this is the way I have undertood it. I could be wrong.
Saludos
Gary Gower
Mark Blackwell <markb1958@verizon.net> wrote:
--> Pietenpol-List message posted by: "Mark Blackwell"
----- Original Message -----
From: "Steve Eldredge"
To:
Sent: Monday, February 13, 2006 10:39 AM
Subject: RE: Pietenpol-List: Starting Troubles
> --> Pietenpol-List message posted by: "Steve Eldredge"
>
> going to full carb heat on cold days works wonders when hand propping
> too.
>
> stevee
>
Carb heat for most engines will do absolutely nothing till the engine is
running. All it does is pull unfiltered air by the exhaust manifold to warm
it before sending it to the in carb. All it will do till the engine is
running is allow for something to get pulled into places you don't want it.
Things like ice, slush ect can make for an annoying if n ot expensive day.
When an engine doesn't start properly, there is a reason. Just because it
will sooner or later go doesn't mean the problem is not there and rarely if
ever do airplane parts wind up on a clearance sale. Might as well find and
fix the problem.
I suspected it might be the impluse coupler and the previous post confirmed
it. That should fix the problem. Just be glad you only got tired arms to
find. it. I know of one case where a company renting a 152 had the same
problem with the same symptoms. They just kept cranking on it until they
had to fix not only the impluse coupler which is expensive enough, but also
had to replace the $500 starter to go with it. When an airplane does not
work like it should, its trying to tell you something. Those that are wise
listen.
Mark
Message 4
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Subject: | Re: Pietenpol-List Digest: Carb Heat |
Trying to start the engine with the carb heat on, which should be permanently
on with a Model A powered Piet, shouldn't have an effect on starting. There
is little resistance to the intake air when hand propping...unless you've
actually got an air filter in the intake and it is extremely dirty. Assuming you've
got air and fuel (and no water contamination) to the engine, then the only
thing left would be ignition --- either weak or no spark or the timing is
off...or weak compression. That's how I'd approach a hard starting engine...my
2
cents...if the carb float is off it may flood or it should at least fire, though
it may quit...
Fred B.
La Crosse, WI
Message 5
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Subject: | Re: Pietenpol-List Digest: Carb Heat |
--> Pietenpol-List message posted by: harvey rule <harvey.rule@bell.ca>
If the gas is old,it will also cause hard starting.
Message 6
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--> Pietenpol-List message posted by: "Oscar Zuniga" <taildrags@hotmail.com>
Thanks to all who responded. To those who posted a photo to the list and
not to my email personally... I'll never see it! I'm on the digest version
of the list, which does not pass attachments through.
I got a beautiful side view picture of Mike Hayes riding passenger in Bill
Rewey's Piet. Should give me the info I needed. Also got a very useful
picture of a lovely lady riding passenger in Mike Cuy's Piet. Mike seems to
be a chick magnet with his airplane, not to mention that he is now infamous
for that clip on his video where he provides a helping hand to a female's
backside to get her into the passenger cockpit. You'll never live that one
down, Mike ;o)
Oscar Zuniga
San Antonio, TX
mailto: taildrags@hotmail.com
website at http://www.flysquirrel.net
Message 7
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--> Pietenpol-List message posted by: "Bill Church" <eng@canadianrogers.com>
Oscar,
You CAN see the photos. Just use the Matronics Forum (use this link)
http://forums.matronics.com/viewforum.php?f=7&sid=2ed4da73b54366540c0d90
5c0d06a3a6
Attachments are there, so Digest subscribers can see them without
needing to be subscribed to the real-time List.
Bill
-----Original Message-----
--> Pietenpol-List message posted by: "Oscar Zuniga"
--> <taildrags@hotmail.com>
To those who posted a photo to the list and not to my email
personally... I'll never see it! I'm on the digest version of the list,
which does not pass attachments through.
Oscar Zuniga
Message 8
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Subject: | beautiful women fly first........ |
Oscar--- Yep, good old Tom's wife getting a ride in my Piet. I let him
take his wife for a ride in my Piet because
he's a better taildragger pilot than I'll ever hope to be, plus I get
nervous flying pretty women....not to mention distracted.
Mike C.
do not archive
Message 9
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Subject: | Re: beautiful women fly first........ |
--> Pietenpol-List message posted by: harvey rule <harvey.rule@bell.ca>
That's about all I could ever get into my Piet;a pretty skinny small
women or a midget.The people who flew this thing in the twenties must
have been built like midgets.The only way I can get into the front seat
is head first with no way to turn around and a frantic feeling of never
being able to get out again.The only way I could get into the back seat
pryor to installing the flop door was by sitting on the turtle deck and
doing the limbo.I'm 5'4" on a good day and weigh 200lbs.Now you are
looking at an upside down bowling pin right,----------right!
Michael D Cuy wrote:
>
> Oscar--- Yep, good old Tom's wife getting a ride in my Piet. I let him
> take his wife for a ride in my Piet because
> he's a better taildragger pilot than I'll ever hope to be, plus I get
> nervous flying pretty women....not to mention distracted.
>
> Mike C.
>
> do not archive
>
> Name: Kathiride.jpg
> Kathiride.jpg Type: JPEG Image (image/jpeg)
> Encoding: base64
Message 10
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Subject: | Re: Starting troubles |
Hi Folks,
On the recent posts on hard starting, I've found that the old Stromberg NAS-3 needs
it's idle mixture richened up about 1/4 to 1/2 turn in the cold weather.
I had overhauled the carb as per the manual, installed the steel needle, and
set the float level by the book last summer. Ran great, plugs were perfect, idle
mixture screw was at about 1 turn (set for best hot idle, like the book says).
Pull thru 4-5 blades, switch on, crack the throttle, and she'd pop right off
and idle, although a little rough until it warmed up.
Now that it's cold (well, as cold as it gets around here), she'll pop right off,
run for 4-5 seconds, and die. This would be repeated a couple of times until
she would finally stay running (carb heat on).
Opened up the idle mixture 1/4 turn or so yesterday and it's about 90% better.
Still died once, but stayed running on the second attempt.
My old BMW motorcycle needs seasonal idle mixture tweaks, and so did the old Porsche,
so I suppose this is to be expected with a simple carb with no manifold
heat.
My 2 cent's worth :-)
Dave Mordecai
Panacea, FL
Hi Folks,
On the recent posts on hard starting, I've found that the old Stromberg NAS-3 needs
it's idle mixture richened up about 1/4 to 1/2 turn in the cold weather.
I had overhauled the carb as per the manual, installed the steel needle, and set
the float level by the booklast summer.Ran great, plugs were perfect, idle
mixture screw was at about 1turn (set for best hot idle, like the book says).
Pull thru 4-5 blades, switch on, crack the throttle, and she'd pop right off and
idle, although a little rough until it warmed up.
Now that it's cold (well, as cold as it gets around here), she'll pop right off,
run for 4-5 seconds, and die. This would be repeated a couple of times until
she would finally stay running (carb heat on).
Opened up the idle mixture 1/4 turn or so yesterday and it's about 90% better.
Still died once, but stayed running on the second attempt.
My old BMW motorcycle needs seasonal idle mixture tweaks, and so did the old Porsche,
so I suppose this is to be expected with a simple carb with no manifold
heat.
My 2 cent's worth :-)
Dave Mordecai
Panacea, FL
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