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08-12-2015, 09:00 AM
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Join Date: Oct 2006
Location: arvada, co
Posts: 445
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Randy,
So can we get an update on your JD regulator experience to date? I also believe when you did the transfer you posted information about the modified plate to mount the JD regulator and the wiring adjust to work with this regulator.
Could you show this again or the link to the prior post? Thanks
__________________
Patrick Claar
Arvada, CO BJC
RV12, #401, Flying 2013, N612PC
RV6, 1996-2010 sold
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08-12-2015, 11:36 AM
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Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 2,820
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A lot of folks turn their nose up at automotive grade components, but in many cases they have harsher service environments and certainly more annual operating hours than many of their aeronautical counterparts.
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08-13-2015, 05:19 AM
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Join Date: Jan 2005
Location: Martinsville, IN
Posts: 2,326
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Quote:
Originally Posted by funflying
Randy,
So can we get an update on your JD regulator experience to date? I also believe when you did the transfer you posted information about the modified plate to mount the JD regulator and the wiring adjust to work with this regulator.
Could you show this again or the link to the prior post? Thanks
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I have a total of 165 hrs on the airframe, which means I have approximately 50 hours on this installation. Everything is working great up to this point. Here are the pictures of my installation.

The two regulators side-by-side.

I used my wiring tools to remove the clips from the Ducati clip.

I drilled a new mounting hole and installed a nutplate. I probably could have made a mounting plate and avoided the new hole.

Regulator mounted and shrink tubing used to hold the clips on and to insulate them from one another.

I made a cover that allows for about 3/8" airflow around the regulator. This also acts as a heat shield from the outflow of the radiator and the exhaust pipe.

Cover mounted. The nut and washer cover a hole I had to drill to get at the back bolt. Poorly engineered I admit but it works.
__________________
Randy Pflanzer
Greenwood, IN
www.pflanzer-aviation.com
Paid through 2043!
Lund fishing Boat, 2017, GONE FISHING
RV-12 - Completed 2014, Sold
427 Shelby Cobra - Completed 2012, Sold
F1 EVO - partially completed, Sold
F1 Rocket - Completed 2005, Sold
RV-7A - Partially completed, Sold
RV-6 - Completed 2000, Sold
Long-EZ - Completed 1987, Sold
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08-13-2015, 08:28 AM
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Join Date: Oct 2006
Location: arvada, co
Posts: 445
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Wiring swap
Thanks Randy.
What was the wiring swap or which wires to the new regulator spade locations. I recall the markings on the JD regulator being different or better said different marks and order than the Ducati?
Any notes on this would be great or just say "look at them both and its self-explanatory."
Thanks
__________________
Patrick Claar
Arvada, CO BJC
RV12, #401, Flying 2013, N612PC
RV6, 1996-2010 sold
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08-14-2015, 05:36 AM
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Join Date: Jan 2005
Location: Martinsville, IN
Posts: 2,326
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Here's what I recall. The JD regulator has one less post on it than the Ducati regulator. There's no "R" terminal on the John Deere. That means one of the heavy white wires is not used and can be tied off to the wiring bundle. They come from the same source anyway so it doesn't hurt anything. Be sure to cover the end with some shrink tubing to insulate it from shorting out against the firewall. The remaining heavy white wire is connected to the "B" terminal. Also, on both regulators, terminal "L" is not used. I think it is used to drive an indicator light circuit. The two heavy yellow terminals come from the generator and are connected to the two "G" terminals. Doesn't matter which wire to which terminal. The remaining small yellow wire connects to the "C" or sometimes labeled "F" post. This is the bus voltage detect wire from the ignition switch.
__________________
Randy Pflanzer
Greenwood, IN
www.pflanzer-aviation.com
Paid through 2043!
Lund fishing Boat, 2017, GONE FISHING
RV-12 - Completed 2014, Sold
427 Shelby Cobra - Completed 2012, Sold
F1 EVO - partially completed, Sold
F1 Rocket - Completed 2005, Sold
RV-7A - Partially completed, Sold
RV-6 - Completed 2000, Sold
Long-EZ - Completed 1987, Sold
Last edited by f1rocket : 11-15-2015 at 08:42 AM.
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08-14-2015, 11:23 AM
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Join Date: Apr 2008
Location: Riley TWP MI
Posts: 3,070
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Permanent magnet alternators (dynamos) do not have a field winding and thus no "F" terminal. The "C" terminal on the Ducati regulator serves a dual purpose: it is an on-off control and also bus-voltage sense. The regulator monitors the voltage on the small yellow wire that comes from the master switch. The Ducati regulator adjusts its output to maintain a system voltage of about 13.8 or so, at least on my plane.
The John Deere AM101406 and MIA881279 terminal "IGW" corresponds to the "C" terminal of the Ducati. I have not installed a John Deere regulator on my RV-12 because the Ducati has not failed . . . yet. But I did replace the regulator on my Simplicity lawn more with a John Deere and its output is 14.2 volts, which is higher than the Ducati. Most aircraft and automotive regulators are set at 14.2 volts.
__________________
Joe Gores
RV-12 Flying
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08-14-2015, 11:26 AM
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Join Date: Apr 2008
Location: Riley TWP MI
Posts: 3,070
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Randy,
Good job installing the John Deere regulator.
__________________
Joe Gores
RV-12 Flying
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11-28-2015, 10:45 AM
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Join Date: Oct 2012
Posts: 421
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I am in the process of installing this using Randy's instructions, although my install won't be as nearly as clean.
I have been having problems keeping my 12 battery charged, but I am running dual sky views, lighting and ads-b. I do often keep all my lights on during the day for see and avoid, so the minute I come back on the power I am discharging.
I will try and post some pics in the next few days.
I was a little worried about the charge rate but started digging into the PC Odyssey battery manuals to see what was acceptable for a charge voltage and found these gems:
"(A) Selecting the right charger for your battery
Qualifying portable automotive and powersport chargers for your ODYSSEY battery is a simple two-step process.
Step 1 Charger output voltage
Determining the charger output voltage is the most important step in the charger quali cation process. If the voltage output from the charger is less than 14.2V or more than 15V for a 12V battery, then do not use the charger. "
and then this:
"Samples 1 and 2 were charged at 14.2V while Samples 3 and 4 were charged at 14.7V. All batteries were discharged.
at 2.3A until the terminal voltage dropped to 10.02V and charged for 16 hours. In this particular test, a capacity of 11.5Ah corresponds to 100% capacity and 9.2Ah is 80% of rated capacity and the battery is considered to have reached end of life at that point.
The message to be taken from this graph is clear ? in deep cycling applications it is important to have the charge voltage set at 14.4 ? 15.0V. A nominal setting of 14.7V is a good choice, as shown by the test results."
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11-28-2015, 11:14 AM
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Join Date: Apr 2014
Location: Port Orange, Fl
Posts: 931
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Not sure but I think that might be the NAPA regulator not John Deere.
Also, http://www.vansairforce.com/communit...0&postcount=47 pretty much supports your conclusion. 14.8 is just a bit close to the max of 15.0 for me ...
__________________
Tom
Port Orange, Fl
EAA #51411
RV-12 N121TK ELSA #120845; first flight 06/10/2015; 700 hrs as of 02/2020
RV-12 N918EN ELSA #120995 Eagles Nest Project; first flight 05/18/2019
SPA Panther N26TK; First Flight 03/13/2020
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11-28-2015, 11:23 AM
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Join Date: Oct 2012
Posts: 421
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Quote:
Originally Posted by tomkk
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I ordered 2 - one from NAPA, one from Deere and they look exactly the same, same markings and numbers, same box, same made in Taiwan.
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