Today's Message Index:
----------------------
1. 01:49 AM - Re: Magneto/Engine Timing Yak52 (Brian Lloyd)
2. 02:00 AM - Re: LED replacments for LDG LIGHTS (Brian Lloyd)
3. 07:11 AM - Re: LED replacments for LDG LIGHTS (dave@davelaird.com)
4. 08:41 AM - Re: Magneto/Engine Timing Yak52 (jay reiter)
5. 11:07 AM - [ Terry Calloway ] : New Email List Photo Share Available! (Email List Photo Shares)
6. 11:06 PM - Re: Timing slipped a gear......? (Frank Haertlein)
7. 11:10 PM - Fantastic Airplane Photos............ (Frank Haertlein)
Message 1
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| Subject: | Re: Magneto/Engine Timing Yak52 |
--> Yak-List message posted by: Brian Lloyd <brian@lloyd.com>
Ernest Martinez wrote:
> --> Yak-List message posted by: "Ernest Martinez" <ernest.martinez@oracle.com>
>
> Why would anyone be doing this with hot mags????
Because you need to detect when the points open and you can't if you have the mag
switch shorting out the points.
Greetings from Nigeria. Getting internet access here is a challenge.
--
Brian Lloyd 6501 Red Hook Plaza
brian@lloyd.com Suite 201
http://www.lloyd.com St. Thomas, VI 00802
+1.340.998.9447 (voice) +1.360.838.9669 (fax)
There is a time to laud one's country and a time to protest.
A good citizen is prepared to do either as the need arises.
Message 2
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| Subject: | Re: LED replacments for LDG LIGHTS |
--> Yak-List message posted by: Brian Lloyd <brian@lloyd.com>
Aubrey Price wrote:
> --> Yak-List message posted by: Aubrey Price <aprice@vartec.net>
>
> What size resistor are you putting in series to drop the voltage. Great
> idea. Why didn't I think of it.
One would have to figure it out. The white LEDs seem to have about a 3V-4V drop
across them at operating current. Current is about 20mA as I recall. So pick
a resistor that will drop 24V at 20mA. R = E/I (resistance equals voltage
divided by current) so 24V/.020A = 1.2K.
To figure dissipation: E*I = P or 24V * .020A = 0.48W. I would use nothing less
than a 1W resistor.
Red LEDs seem to have about a 1.5V-2V drop which will require a slightly higher
value resistor. I am not sure about the drop across the green LEDs and plan
to measure them for my application.
These calculations are used as an example. You will need to check the values published
by the manufacturer of the LEDs you are using or you will need to come
up with a test setup with a variable resistor.
--
Brian Lloyd 6501 Red Hook Plaza
brian@lloyd.com Suite 201
http://www.lloyd.com St. Thomas, VI 00802
+1.340.998.9447 (voice) +1.360.838.9669 (fax)
There is a time to laud one's country and a time to protest.
A good citizen is prepared to do either as the need arises.
Message 3
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| Subject: | Re: LED replacments for LDG LIGHTS |
--> Yak-List message posted by: dave@davelaird.com
you guys are making my head hurt....
why not just buy these:
http://www.newark.com/product-details/text/CD121/59577.html
scroll to the bottom of the page..
in the mini bayonet section...
28volt, baby! and listed as replacements fot the 313 and 1864......hmmmm
Kinda expensive, but may work... what do you think? Brian?
Dave Laird
N63536 "Betty"
Dallas
Message 4
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| Subject: | Re: Magneto/Engine Timing Yak52 |
--> Yak-List message posted by: "jay reiter" <jmreiter@adelphia.net>
If the buzz box is hooked up to the mag its transformer grounds the mag. But
why take a chance that the alligator clip should snap off when you are
rocking the prop.
----- Original Message -----
From: "Brian Lloyd" <brian@lloyd.com>
Subject: Re: Yak-List: Magneto/Engine Timing Yak52
> --> Yak-List message posted by: Brian Lloyd <brian@lloyd.com>
>
> Ernest Martinez wrote:
> > --> Yak-List message posted by: "Ernest Martinez"
<ernest.martinez@oracle.com>
> >
> > Why would anyone be doing this with hot mags????
>
> Because you need to detect when the points open and you can't if you have
the mag switch shorting out the points.
>
> Greetings from Nigeria. Getting internet access here is a challenge.
>
> --
> Brian Lloyd 6501 Red Hook Plaza
> brian@lloyd.com Suite 201
> http://www.lloyd.com St. Thomas, VI 00802
> +1.340.998.9447 (voice) +1.360.838.9669 (fax)
>
> There is a time to laud one's country and a time to protest.
> A good citizen is prepared to do either as the need arises.
>
>
Message 5
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| Subject: | [ Terry Calloway ] : New Email List Photo Share Available! |
--> Yak-List message posted by: Email List Photo Shares <pictures@matronics.com>
A new Email List Photo Share is available:
Poster: Terry Calloway <TCalloway@datatechnique.com>
Subject: Team Red 2004 Practice Opens
http://www.matronics.com/photoshare/TCalloway@datatechnique.com.02.28.2004/index.html
o Main Photo Share Index
http://www.matronics.com/photoshare
o Submitting a Photo Share
If you wish to submit a Photo Share of your own, please include the
following information along with your email message and files:
1) Email List or Lists that they are related to:
2) Your Full Name:
3) Your Email Address:
4) One line Subject description:
5) Multi-line, multi-paragraph description of topic:
6) One-line Description of each photo or file:
Email the information above and your files and photos to:
pictures@matronics.com
Message 6
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| Subject: | Timing slipped a gear......? |
--> Yak-List message posted by: "Frank Haertlein" <yak52driver@earthlink.net>
Yaksters,
As regards the timing issues I posted about......
Went back to recheck everything and found the rubbing block on the
points had worn quicker then what I'm used to. This caused the timing to
be off.
As I was rechecking the timing, I was about to loosen the left mag hold
down nuts when I discovered the fuel primer line was broken. The primer
injection port is right next to the left mag hold down nut so when I
went to loosen the nut the primer line came apart. A visual inspection
of this line revealed nothing wrong as it looked perfectly in place. A
little bit of a tug on it would have revealed it was broken and that's
what happened when I went to loosen the mag hold down nut. It was pure
luck that I discovered it (serendipity?).
So I'm left to conclude there was little if any fuel getting into the
engine for a proper prime. Take a lesson from this......even if you can
feel fuel being pushed from the primer, don't assume it's getting to
your engine! This is why I had difficulty starting and why it would only
sputter every so often. Combine this with worn down points and it all
makes sense as to what was happening.
Needless to say, I'm pleased I don't have a engine that's been Hydraulic
locked or an accessory drive shaft that's been bent as a result.
I readjusted the points, bolted everything back together and,
lo-and-behold, I have a motor that runs great! What a relief!
Hope you guys can take a lesson from this.
Regards
Frank (Hound Dog) Haertlein
N9110M
YAK-52
Message 7
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| Subject: | Fantastic Airplane Photos............ |
--> Yak-List message posted by: "Frank Haertlein" <yak52driver@earthlink.net>
Not exactly YAK related but worth a look...........
Click on this link for a neat series of airplane pictures. May take
awhile if you have dial up.
http://home.earthlink.net/~yak52driver/FantasticAirplanes.pps
Frank
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