Today's Message Index:
----------------------
1. 07:21 AM - Fw: Exciter (Reagan)
2. 07:43 AM - Re: Fw: Exciter (Richard Goode)
3. 07:57 AM - Apologies (Richard Goode)
4. 10:04 AM - Re: Fw: Exciter (Anthony Savarese)
5. 10:19 AM - Re: Fw: Exciter (Mark Pennington)
6. 12:16 PM - Re: Fw: Exciter (Mark Bitterlich)
7. 02:05 PM - Asz 621 (George)
Message 1
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Pooh=99s phone
Begin forwarded message:
> From: Reagan <jlpartington@reagan.com>
> Date: August 26, 2021 at 9:18:55 AM CDT
> To: richard.goode@russianaeros.com
> Subject: Exciter
>
> the exciter is sparking but it=99s points are not opening is it brok
en? Never looked at one before
Message 2
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Hello Jim,
Of course you're referring to what Americans normally call the "shower
of sparks", and indeed we call "booster coil". It would seem there is a
problem with it =93 but to be honest I'm not an expert in the
details of its operation. I would contact Dennis Savarese who really is
an expert and very helpful.
With best wishes
Richard
RICHARD GOODE AEROBATICS
Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129
e-mail: <mailto:richard.goode@russianaeros.com>
richard.goode@russianaeros.com
<http://www.russianaeros.com> www.russianaeros.com
WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES
In partnership with Aerometal Kft, Hungary.
From: owner-yak-list-server@matronics.com
<owner-yak-list-server@matronics.com> On Behalf Of Reagan
Sent: 26 August 2021 15:21
Subject: Yak-List: Fwd: Exciter
Pooh=99s phone
Begin forwarded message:
From: Reagan <jlpartington@reagan.com <mailto:jlpartington@reagan.com> >
<mailto:richard.goode@russianaeros.com>
Subject: Exciter
the exciter is sparking but it=99s points are not opening is it
broken? Never looked at one before
Message 3
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I had thought that Jim Partington had written directly to me rather than
to the list! Apologies.
RICHARD GOODE AEROBATICS
Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129
e-mail: <mailto:richard.goode@russianaeros.com>
richard.goode@russianaeros.com
<http://www.russianaeros.com> www.russianaeros.com
WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES
In partnership with Aerometal Kft, Hungary.
Message 4
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| Subject: | Re: Fwd: Exciter |
The best way to confirm whether or not the mag is getting the required spark
to start the engine is to remove the starting coil wire from the mag cap. T
hen have someone hold the wire with a pair of insulated pliers about 3/8
=9D to 1/2=9D away from a metal surface on the engine (ground). Then i
n the cockpit with the main air off, squeeze the brake handle until you can n
o longer hear the =9Cwoosh=9D sound when you release the brake h
andle. Doing this will prevent the engine from rotating when you press the s
tart button in the next step.
Next, turn on the battery and ignition. Now press the start button. The pers
on holding the starting coil wire should see a continuous spark jumping from
the tip of the wire to ground. If the wire has to be moved very close to gr
ound to see the spark jump, then the starting coil is not functioning proper
ly. Try cleaning the points with a point file. You can adjust the point gap w
ith the little thump wheel until you see the biggest spark jumping to ground
.
Dennis
Sent from my iPhone
> On Aug 26, 2021, at 10:23 AM, Reagan <jlpartington@reagan.com> wrote:
>
> =EF=BB
>
> Pooh=99s phone
>
> Begin forwarded message:
>
>> From: Reagan <jlpartington@reagan.com>
>> Date: August 26, 2021 at 9:18:55 AM CDT
>> To: richard.goode@russianaeros.com
>> Subject: Exciter
>>
>> the exciter is sparking but it=99s points are not opening is it bro
ken? Never looked at one before
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============
Message 5
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| Subject: | Re: Fwd: Exciter |
Ok guys screen shot this one and put it in your how to trouble shoot your
CJ or Yak book.
Thanks Dennis
Mark
N621CJ
On Thu, Aug 26, 2021 at 1:09 PM Anthony Savarese <
dsavarese0812@bellsouth.net> wrote:
> The best way to confirm whether or not the mag is getting the required
> spark to start the engine is to remove the starting coil wire from the ma
g
> cap. Then have someone hold the wire with a pair of insulated pliers abou
t
> 3/8=9D to 1/2=9D away from a metal surface on the engine (gro
und). Then in the
> cockpit with the main air off, squeeze the brake handle until you can no
> longer hear the =9Cwoosh=9D sound when you release the brake
handle. Doing this
> will prevent the engine from rotating when you press the start button in
> the next step.
> Next, turn on the battery and ignition. Now press the start button. The
> person holding the starting coil wire should see a continuous spark jumpi
ng
> from the tip of the wire to ground. If the wire has to be moved very clos
e
> to ground to see the spark jump, then the starting coil is not functionin
g
> properly. Try cleaning the points with a point file. You can adjust the
> point gap with the little thump wheel until you see the biggest spark
> jumping to ground.
> Dennis
>
> Sent from my iPhone
>
> On Aug 26, 2021, at 10:23 AM, Reagan <jlpartington@reagan.com> wrote:
>
> =EF=BB
>
> Pooh=99s phone
>
> Begin forwarded message:
>
> *From:* Reagan <jlpartington@reagan.com>
> *Date:* August 26, 2021 at 9:18:55 AM CDT
> *To:* richard.goode@russianaeros.com
> *Subject:* *Exciter*
>
> the exciter is sparking but it=99s points are not opening is it bro
ken?
> Never looked at one before
>
> ========================
=========== =============
=====================
> ========================
=========== =============
=====================
> ========================
>
>
Message 6
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Great advice Dennis!
For the technically minded, this device is pretty much exactly what you
would find on a Model T Ford. It is an
=9CAutotransformer=9D and as such only works with
Alternating Current and not DC. Enter the buzzer. A buzzer works by
applying DC voltage to a solenoid which actually is an electromagnet.
When the magnet gets energized it pulls down a piece of metal that then
contacts another piece of metal. Which is called a relay.
This relay is wired so that when the coil (solenoid) is powered, as soon
as the relay arm moves, it REMOVES the power from the coil. So the
relay de-energizes, which once more closes some relay contacts which
once more energizes the coil. So this back and force cycle repeats
rapidly! And the sound it makes is . BZZZZZZZZZZZZZZZ!
But more interesting is that another relay contact is wired to the
transformer primary. As the relay points open and close rapidly, it
creates a SQUARE WAVE which is AC energy! The transformer steps this
voltage up to about 20,000 volts or so. This is enough to create a
spark and is what gets sent to the mag and then through the rotor to the
plugs.
The adjustment Dennis mentions adjusts how far apart the relay contacts
are, thus it changes the timing of the buzzer. Too small a gap and it
goes too fast and saturates the transformer and you get less spark. Too
wide and it slows down so much that it might not light off a spark plug.
There is a Russian recommended gap setting, but I have forgotten what it
is. Adjusting for maximum spark as Dennis recommends is just as good a
method!
Richard, now you=99re an expert. :)
Mark
From: owner-yak-list-server@matronics.com
<owner-yak-list-server@matronics.com> On Behalf Of Anthony Savarese
Sent: Thursday, August 26, 2021 1:04 PM
Subject: Re: Yak-List: Fwd: Exciter
The best way to confirm whether or not the mag is getting the required
spark to start the engine is to remove the starting coil wire from the
mag cap. Then have someone hold the wire with a pair of insulated pliers
about 3/8=9D to 1/2=9D away from a metal surface on the
engine (ground). Then in the cockpit with the main air off, squeeze the
brake handle until you can no longer hear the =9Cwoosh=9D
sound when you release the brake handle. Doing this will prevent the
engine from rotating when you press the start button in the next step.
Next, turn on the battery and ignition. Now press the start button. The
person holding the starting coil wire should see a continuous spark
jumping from the tip of the wire to ground. If the wire has to be moved
very close to ground to see the spark jump, then the starting coil is
not functioning properly. Try cleaning the points with a point file. You
can adjust the point gap with the little thump wheel until you see the
biggest spark jumping to ground.
Dennis
Sent from my iPhone
On Aug 26, 2021, at 10:23 AM, Reagan <jlpartington@reagan.com
<mailto:jlpartington@reagan.com> > wrote:
=EF=BB
Pooh=99s phone
Begin forwarded message:
From: Reagan <jlpartington@reagan.com <mailto:jlpartington@reagan.com> >
<mailto:richard.goode@russianaeros.com>
Subject: Exciter
the exciter is sparking but it=99s points are not opening is it
broken? Never looked at one before
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Message 7
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I am looking for a new old stock or an overhauled old stock Antonov-2
engine. Asz-621 series 14, 15 or 16. Any leads would be appreciated.
George Coy
MotorstarNA
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