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04-19-2016, 07:47 PM
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Banned
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Join Date: Apr 2015
Location: Altha, FL.
Posts: 114
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Vans RV12's seem have a high and disproportionate number of VR failures. We were just talking about this in class last month amongst some of the other instructors and IRC's. Most of us believe it has to be one of three things. Heat (#1 cause) from where it is mounted on the metal shelf just behind the #4 exhaust. I know there is an SB for relocation, but many haven't done this. The VR must have its own ground wire and just mounting it to the firewall is not good enough. Internal heat from either too much load or not enough. No other single aircraft MFG is having this number of failures. There has always been a failure or two, but usually on different aircraft, but the 12's are having a disproportionate number.
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04-19-2016, 08:51 PM
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Join Date: Oct 2012
Posts: 421
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Quote:
Originally Posted by Martin Sobel
Just had the second VR fail at about180 Hours. First failed out of the box.
What is the part number for the John Deer VR? It sure sounds like there is a quality control/design failure.
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http://www.amazon.com/DB-Electrical-...DX7GJ7G5SEV5RM
There are a couple of good threads on here for install. I ended up doing the second method using the existing holes and fabricated a ground wire from the case to the engine as well.
Been running and charging much better than the ducati.
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04-20-2016, 09:48 AM
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Join Date: Jan 2005
Location: Martinsville, IN
Posts: 2,326
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Yep, I have a 100 hours now on my JD and it continues to work flawlessly. Personally (and I have zero scientific data to support this) I think that the heat is killing it. That's why I surrounded mine with a shroud all the way around, not just to blow air on top of it. One of the existing threads has pictures of my installation.
Found it. THREAD
__________________
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 : 04-20-2016 at 09:55 AM.
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04-28-2016, 12:59 PM
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Join Date: Sep 2014
Location: IN
Posts: 254
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Rotax/ Duccatti regulator rectifier to John Deere
I have been running a John Deere regulator rectifier for more than 600 hours on our Rotax 912S powered Rans S7. We used a clone AM101406, we did put a blast tube on it to keep it cool. About $30 delivered from Amizon (prime).
I charges better than the Duccatti with the voltage pinned on 14.3 volts about a half volt higher than the Duccatti which is more suitable for the recombinant gas valve regulated battery (odyssey likes this higher voltage for long life and full charge)
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04-28-2016, 07:16 PM
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Join Date: Aug 2015
Location: Lopez Island, Wa.
Posts: 178
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Regulator mount
I just mounted mine today, behind right cooling fan under Avionics panel, not fun to mount and wondered why?? After running all wires under panel and not up above... don't know about ground?? nothing was shown?? Did get a notice that wire from Solenoid to starter is incorrect because of hole sizes...I did drill mine out..so it was incorrect and will order correct one....
__________________
Retired Firefighter/Para-Medic
Sold 182 Skyelane
sold Super Cub
Building RV 12 E-LSA
Paid thru 2016, even though exempt
RV 12 completed, waiting DAR
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06-17-2016, 05:34 PM
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Join Date: Oct 2010
Location: Elkton, Md.
Posts: 1,652
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Today at 153 hrs. my interior mounted regulator failed. Thankfully, my buddy Skunkworks had a new one in stock. I have been thinking recently that I should be carrying a spare. Looks like I am going to be testing the John Deere unit out. This is my second RV12. The regulator on my first 12 was under the cowling and it lasted 250 hrs. We really can't depend on these units!
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Wag Aero Sport Trainer built,sold and wrecked
N588DF RV12 #336 built, sold and alive and well in New York
N73DF RV12 #244 built, sold and alive and well in Florida
N91 RV RV9 I wish I could say I built this one! Mark Santoleri hit the ball out of the park on this gem.
Currently restoring a 1978 Citabria GCBC
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06-17-2016, 05:54 PM
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Join Date: Apr 2014
Location: Port Orange, Fl
Posts: 931
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I think this is the first interior mounted failure I've heard about ...
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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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06-17-2016, 06:24 PM
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Join Date: Aug 2015
Location: Lopez Island, Wa.
Posts: 178
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Regulator failure
Today after first flight I had no charging going on..parked aircraft and started investigating..alternator putting out 13 plus...but output from regulator is only 6 volts...ordered a new regulator ($175.00) plus shipping...and now challenging warrenty claim...if these Ducoti regulators are failing at high rate, why not find a better unit??? Should be a better link between Van's and Rotax also..since I struggled getting to someone who could order a new regulator...
__________________
Retired Firefighter/Para-Medic
Sold 182 Skyelane
sold Super Cub
Building RV 12 E-LSA
Paid thru 2016, even though exempt
RV 12 completed, waiting DAR
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06-17-2016, 07:08 PM
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Join Date: Aug 2015
Location: Lopez Island, Wa.
Posts: 178
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wiring diagram
wiring diagram for john deer regulator...instead of Ducati...thanks
__________________
Retired Firefighter/Para-Medic
Sold 182 Skyelane
sold Super Cub
Building RV 12 E-LSA
Paid thru 2016, even though exempt
RV 12 completed, waiting DAR
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06-17-2016, 07:55 PM
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Join Date: Nov 2008
Location: Gloversville, NY
Posts: 1,587
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Quote:
Originally Posted by olderthandirt
Today after first flight I had no charging going on..parked aircraft and started investigating..alternator putting out 13 plus...but output from regulator is only 6 volts...ordered a new regulator ($175.00) plus shipping...and now challenging warrenty claim...if these Ducoti regulators are failing at high rate, why not find a better unit??? Should be a better link between Van's and Rotax also..since I struggled getting to someone who could order a new regulator...
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When you say "first flight", do you mean first flight ever, or first flight of the day? If first flight ever perhaps the unit is defective out of the box, rather than failing in service. Can you clarify?
__________________
John Peck, CFII, A&P, EAA Tech Counselor, Flight Advisor.
?Master Pilot? Award, UFO Member.
RV-12 N37JP 120176 Flying since 2012.
One Week Wonder Build Team, OSH 2018.
VAF paid through 10/2019.
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