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01-02-2017, 09:14 PM
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Join Date: May 2006
Location: Pocahontas MS
Posts: 3,884
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Never used a SOS system, but IIRC, it's basically a standard mag with the addition of a 'vibrator' circuit that's only active for starting. How is it controlled? When you shut it off, does it expect to see the switch open the control circuit, or close it? Do the SOS section installation instructions show a separate control from the mag switch?
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01-02-2017, 09:31 PM
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Join Date: Feb 2006
Posts: 165
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The slick start will be wired to the left mag I believe, but will deactivate when taken off of start and the switch goes to "both". My wiring is at the airport so this is from memory for the slick start. I said shower of sparks in my first post, but it is a "slick start"
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Craig Rufi
FLYING NOW AFTER 13+ YEARS. NICE FLYING AIRCRAFT!!
RV-10/Empennage/Wings/QB Fuselage/Wiring/Doors done finally, Cowling done. Stein panel complete, and connecting all those wires :-))Thousand Oaks, Ca. Dues paid for 2019
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01-03-2017, 03:05 AM
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Join Date: Feb 2007
Location: Mpumalanga, South Africa
Posts: 1,065
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Slick Start takes its power from the starter solenoid. You will also need to add the jumper that deactivates the right magneto on start. Left magneto should have a retard breaker that the Slick Start connects to. IIRC, the wiring diagram is on the Champion website.
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Paul
Mercy Air, White River FAWV
RV-10 ZU-IIZ - "Zeus"
Building Bearhawk Bravo - RV-18 not available
2019 Donation Made
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01-03-2017, 04:43 AM
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Join Date: Jul 2013
Location: KAVL
Posts: 317
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Quote:
Originally Posted by Jesse
Wire power through a 5Amp fuse or breaker to the "Bat" terminal. Wire the "S" terminal to the "S" on you starter solenoid. L goes to the left mag using 18AWG shielded wire. Cut the shield on the switch side, then tie the center conductor to the P-lead and the shield to the Gnd screw on the mag. Same for the right mag, except there is a Gnd port next to the R terminal on the switch that will get a little bridge jumper to ground the right mag when starting because it won't be retarded. Then there is a Gnd port in the middle of the switch that gets an airframe ground. There will be an LR and another port that will get nothing.
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Now I'm confused. I didn't think the GND from the key switch also went to the airframe ground. Aeroelectric only has the ground at each mag.
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Jason McKay
RV-10
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01-03-2017, 07:24 AM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,516
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Quote:
Originally Posted by Jesse
Wire power through a 5Amp fuse or breaker to the "Bat" terminal. Wire the "S" terminal to the "S" on you starter solenoid. L goes to the left mag using 18AWG shielded wire. Cut the shield on the switch side, then tie the center conductor to the P-lead and the shield to the Gnd screw on the mag. Same for the right mag, except there is a Gnd port next to the R terminal on the switch that will get a little bridge jumper to ground the right mag when starting because it won't be retarded. Then there is a Gnd port in the middle of the switch that gets an airframe ground. There will be an LR and another port that will get nothing.
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This one gets my vote. I also have the same switch and Stein panel. Just did this a few weeks ago. Stein confirmed this so, don't get confused by all the other methods, this it.
PS I don't have slick start.
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Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
Last edited by BillL : 01-03-2017 at 07:37 AM.
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01-03-2017, 08:57 AM
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Join Date: Jul 2013
Location: KAVL
Posts: 317
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Here's my set up-
Slick mag on left with retard breaker, Lightspeed on right (will use LS to start engine). No shower of sparks on left mag.
Using the ACS A-510-5 key switch (without START position) and a momentary button to engage the starter. Left mag P-lead shield grounded to mag. LS wired per installation instructions.
Do I need to tie the shields from both P-leads to the GND terminal at the switch and does this terminal get grounded to the air frame?
Thanks
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Jason McKay
RV-10
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01-03-2017, 08:09 PM
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Join Date: May 2005
Location: X35 - Ocala, FL
Posts: 3,679
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Quote:
Originally Posted by Jasonm
Now I'm confused. I didn't think the GND from the key switch also went to the airframe ground. Aeroelectric only has the ground at each mag.
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The shield is grounded at the mag to make the shield do its work, removing the electrical noise from the p-lead wire. The key switch gets an airframe ground to ground the p-leads when either doing a mag check or keeping the mags from firing when in the off position.
The Slick-Start is used when either you have an impulse coupling, but want even hotter spark, or when you have a retard breaker mag and also want hotter spark. The slick-start gets power, as was already stated, from the starter solenoid, so it is only powered while the engine is cranking. I don't understand how a retard breaker works, but I know it retards the timing to or after TDC so it doesn't backfire. I spent some time researching in the past to see how the retard breaker worked without a Slick-Start and never found an answer.
The Slick-Start wiring diagram has VIN getting power from the switched (starter) side of the starter solenoid through a 5Amp fuse. The Gnd port goes to the ground screw on the left mag. The 1 port goes to the P-lead on the left mag. The 3 port goes to the retard breaker terminal on the left mag. The key switch wiring doesn't change from what I described earlier. This paragraph describes wiring when you have a single retard breaker mag, and it is on the left side.
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Jesse Saint
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01-03-2017, 08:16 PM
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Join Date: May 2005
Location: X35 - Ocala, FL
Posts: 3,679
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Quote:
Originally Posted by Jasonm
Here's my set up-
Slick mag on left with retard breaker, Lightspeed on right (will use LS to start engine). No shower of sparks on left mag.
Using the ACS A-510-5 key switch (without START position) and a momentary button to engage the starter. Left mag P-lead shield grounded to mag. LS wired per installation instructions.
Do I need to tie the shields from both P-leads to the GND terminal at the switch and does this terminal get grounded to the air frame?
Thanks
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Jason,
In this case, I would recommend you wire the mag to the R port on your key switch and use the R-Gnd jumper, then wire your lightspeed kill wire to the L port on your key switch. I know it doesn't follow with Left and Right physically, but you could think of it as Lectric and Regular. THis way you will be killing your mag when cranking, which will remove the possibility of it firing before TDC when turning slowly and getting a kickback.
I don't know how the key switch with no start position works to kill one mag for start, but I have done this with a double pole start button/switch that grounded the mag when I pushed the button or flipped the switch to crank, killing the mag during start.
You do not tie the shields to the ground port on the key switch. You just tie them to the ground port on the mag. I don't know if the lightspeed requires a shielded wire, but you can follow their instructions on that.
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Jesse Saint
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01-04-2017, 08:07 AM
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Join Date: Jul 2013
Location: KAVL
Posts: 317
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Thanks Jesse
When starting off the R position, the L position goes to ground and vise versa. When starting from the BOTH position neither the L or R is grounded. I'll have to double check and see if there is a jumper terminal to ground the mag while starting from the LS. I could always just start of the R position instead of BOTH.
__________________
Jason McKay
RV-10
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