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Search: Posts Made By: Mich48041
Forum: RV-12/RV-12iS Today, 06:33 PM
Replies: 45
Views: 1,630
Posted By Mich48041
Lon, Knowing that your plane is flying again...

Lon, Knowing that your plane is flying again makes my day.
Forum: Electrical Systems Yesterday, 07:36 PM
Replies: 2
Views: 311
Posted By Mich48041
Print labels with computer printer. Wrap wire...

Print labels with computer printer.
Wrap wire with several layers of tape to make it fat.
Slide large size clear heat shrink over terminal and over fat taped wire.
Slide label under clear heat shrink...
Forum: RV-12/RV-12iS Yesterday, 06:35 PM
Replies: 45
Views: 1,630
Posted By Mich48041
Lon, Is your charging system working?

Lon,
Is your charging system working?
Forum: RV-12/RV-12iS Yesterday, 05:39 PM
Replies: 7
Views: 388
Posted By Mich48041
Measure the voltage between airframe ground and...

Measure the voltage between airframe ground and the fuel level sender center screw.
What is that voltage?
Forum: Electrical Systems 11-12-2019, 09:23 AM
Replies: 4
Views: 155
Posted By Mich48041
Bob's E-Bus was intended to supply power to a...

Bob's E-Bus was intended to supply power to a small essential load, thus 7 amps. Essential means
different things to different people. Many builders connect loads that are essential to them but
not...
Forum: Electrical Systems 11-11-2019, 09:15 PM
Replies: 4
Views: 155
Posted By Mich48041
In your revised circuit, a diode is not needed...

In your revised circuit, a diode is not needed because there is no way
for current to flow from the E-Bus to the main power bus.
-
Fuses isolate shorts. No pilot action required.
-
Can it kill you? ...
Forum: RV-12/RV-12iS 11-11-2019, 12:13 PM
Replies: 45
Views: 1,630
Posted By Mich48041
My solution as described above restores the...

My solution as described above restores the circuit to its original condition,
electrically speaking, even though it looks completely different. Basically the
fuse is being relocated to an easily...
Forum: Electrical Systems 11-10-2019, 08:58 PM
Replies: 6
Views: 214
Posted By Mich48041
Download THIS...

Download THIS (https://www.dynonavionics.com/includes/guides/103488-000%20-%20REV%20B%20-%20WIRING%20DIAGRAM%20TYPICAL%20HDX%20DUAL%20DISPLAY.pdf) document from Dynon. Page 4 shows how to connect...
Forum: RV-12/RV-12iS 11-10-2019, 06:08 PM
Replies: 45
Views: 1,630
Posted By Mich48041
The fact that master switch light is not working...

The fact that master switch light is not working confirms that the 1 amp fuse
is blown. Ignition A and B switches should continue to light up because
they do not get power from the blown fuse. ...
Forum: RV-12/RV-12iS 11-10-2019, 12:33 PM
Replies: 8
Views: 590
Posted By Mich48041
Remove some of the screws with the canopy closed,...

Remove some of the screws with the canopy closed, and remove the rest with the canopy open.
Forum: RV-12/RV-12iS 11-10-2019, 11:15 AM
Replies: 7
Views: 388
Posted By Mich48041
The most likely cause of the problem is poor...

The most likely cause of the problem is poor grounding of the fuel level sensor steel mounting plate. With EFIS turned on, measure the voltage between the airframe and the fuel level sensor steel...
Forum: RV-12/RV-12iS 11-10-2019, 07:32 AM
Replies: 16
Views: 1,766
Posted By Mich48041
HERE...

HERE (https://www.hydraulicspneumatics.com/maintenance/cavitation-or-aeration-you-can-hear-difference) is an article that explains cavitation.
Forum: RV-12/RV-12iS 11-09-2019, 07:20 PM
Replies: 45
Views: 1,630
Posted By Mich48041
Regulator pin C must have battery voltage on it...

Regulator pin C must have battery voltage on it before the regulator will turn on.
Do not buy a new AV-50001 or pay to have it fixed. Install an inline fuse as
described above. Like I said, the...
Forum: RV-12/RV-12iS 11-09-2019, 07:08 PM
Replies: 45
Views: 1,630
Posted By Mich48041
The AV50001 and AV50002 are not Dynon products. ...

The AV50001 and AV50002 are not Dynon products. They are Van's.
1. NO
2. Bad fuses may be hard to spot, especially a 1 amp fuse. Best to check with a meter.
3. Yes, most likely. My plane is...
Forum: RV-12/RV-12iS 11-09-2019, 06:54 PM
Replies: 45
Views: 1,630
Posted By Mich48041
Fuses smaller than 3 amps do not light up when...

Fuses smaller than 3 amps do not light up when blown, at least the ones that Van's sells.
Forum: RV-12/RV-12iS 11-09-2019, 06:51 PM
Replies: 45
Views: 1,630
Posted By Mich48041
If that 1 amp fuse for regulator terminal "C"...

If that 1 amp fuse for regulator terminal "C" proves to be very difficult to
replace, some people have elected to jumper it by connecting regulator
terminals B & C. Doing that is a bad idea because...
Forum: RV-12/RV-12iS 11-09-2019, 05:23 PM
Replies: 45
Views: 1,630
Posted By Mich48041
When you realize where that fuse is located, your...

When you realize where that fuse is located, your day might not be so bright.
Forum: RV-12/RV-12iS 11-09-2019, 05:21 PM
Replies: 45
Views: 1,630
Posted By Mich48041
I have an early RV-12 with the Dynon D-180. ...

I have an early RV-12 with the Dynon D-180. Van's has made changes to the circuit board a couple of times since then.
Assuming that you have a later version, the fuse is probably located inside of...
Forum: RV-12/RV-12iS 11-09-2019, 04:49 PM
Replies: 45
Views: 1,630
Posted By Mich48041
The problem is that the voltage on regulator...

The problem is that the voltage on regulator terminal "C" is supposed to be equal to battery voltage, but it is not. The fuse is likely blown.
Forum: Electrical Systems 11-06-2019, 08:19 PM
Replies: 20
Views: 951
Posted By Mich48041
The voting choice "On the Battery" means to...

The voting choice "On the Battery" means to measure all current into or out of the battery EXCEPT starter current.
I vote for none because if it is not installed, it can not fail or make sparks...
Forum: RV-12/RV-12iS 11-06-2019, 03:30 PM
Replies: 14
Views: 1,596
Posted By Mich48041
John, read THIS...

John, read THIS (http://www.vansairforce.com/community/showpost.php?p=927539&postcount=5) post. Also read page 2-2 of the FlightDEK-D180 Installation Guide.
Mike M. gives excellent advice. But...
Forum: Electrical Systems 11-01-2019, 12:14 PM
Replies: 9
Views: 584
Posted By Mich48041
A couple of years ago I asked the wire stripper...

A couple of years ago I asked the wire stripper salesman at OSH if his tool
works on Tefzel. He said, "OH no, it will not work work with Tefzel."
Evidently his wire insulation is a soft material,...
Forum: RV-12/RV-12iS 10-31-2019, 01:04 PM
Replies: 36
Views: 3,952
Posted By Mich48041
Electrical loads always draw current from the...

Electrical loads always draw current from the source with the highest
voltage. If electrical system voltage is 13.3 or higher, then it is impossible for
the battery to be supplying any current...
Forum: RV-12/RV-12iS 10-30-2019, 07:18 PM
Replies: 36
Views: 3,952
Posted By Mich48041
NinerBikes, Since the voltage is normal, the...

NinerBikes,
Since the voltage is normal, the ammeter display is erroneous for some reason.
Forum: RV-12/RV-12iS 10-30-2019, 07:04 PM
Replies: 36
Views: 3,952
Posted By Mich48041
Connecting spare batteries in parallel with the...

Connecting spare batteries in parallel with the aircraft battery will NOT recharge the aircraft battery.
_With the master switch OFF, disconnect the negative battery cable. Now measure the...
Forum: RV-12/RV-12iS 10-30-2019, 08:04 AM
Replies: 13
Views: 879
Posted By Mich48041
Ray Community Airport 57D is a friendly place. I...

Ray Community Airport 57D is a friendly place. I can not speak for the other two RV-12 pilots, but I would be willing to give a ride, perhaps this weekend if it stops raining.
Forum: RV-12/RV-12iS 10-29-2019, 09:29 PM
Replies: 4
Views: 412
Posted By Mich48041
HERE...

HERE (http://www.vansairforce.com/community/showthread.php?t=152596) is a thread related to the SkyView backup battery.
Forum: RV-12/RV-12iS 10-28-2019, 08:36 PM
Replies: 13
Views: 879
Posted By Mich48041
There are two RV-12s based at 57D and one other...

There are two RV-12s based at 57D and one other that drops in occasionally.
Forum: Electrical Systems 10-25-2019, 07:16 PM
Replies: 25
Views: 2,398
Posted By Mich48041
Here is a picture showing how to connect the...

Here is a picture showing how to connect the wires.
Without having the parts in hand, I had to make assumptions.
I know that is risky.
I assume that the top of the picture is up.
Anyone feel free to...
Forum: RV-12/RV-12iS 10-24-2019, 06:49 PM
Replies: 64
Views: 19,517
Posted By Mich48041
The Rotax alternator has no moving parts (unless...

The Rotax alternator has no moving parts (unless you count the engine flywheel). The alternator consists of some stationary coils of wire connected in series. The coils seldom fail. If there is...
Forum: Electrical Systems 10-01-2019, 06:19 PM
Replies: 4
Views: 814
Posted By Mich48041
It would help if you posted a link to the switch...

It would help if you posted a link to the switch datasheet. Without more info, all I can suggest is to run a separate positive wire to power the LEDs. Are the LEDs designed to be powered by 12...
Forum: RV-12/RV-12iS 10-01-2019, 03:50 PM
Replies: 7
Views: 887
Posted By Mich48041
If Van's control board AV-50000A is revision 2 or...

If Van's control board AV-50000A is revision 2 or later, then a 5K ohm pot may be connected to pins 6 & 7 of the switch module D-Sub on the AV-50000A.
So the first step is to determine the revision...
Forum: RV-12/RV-12iS 10-01-2019, 08:23 AM
Replies: 7
Views: 887
Posted By Mich48041
My RV-12 has a Dynon D-180, so I am not familiar...

My RV-12 has a Dynon D-180, so I am not familiar with the Skyview system.
But here are suggestions:
Go into the Skyview settings and change the dimmer output.
Try to find an adjustment pot on the...
Forum: RV-12/RV-12iS 09-29-2019, 03:50 PM
Replies: 8
Views: 1,179
Posted By Mich48041
If you want a heavier plane, how about an RV-14?

If you want a heavier plane, how about an RV-14?
Forum: RV-12/RV-12iS 09-25-2019, 09:34 PM
Replies: 11
Views: 912
Posted By Mich48041
I went on a long cross country flight once with...

I went on a long cross country flight once with the autopilot turned on. There were scattered clouds that caused up and down drafts. The D-180 was constantly asking me to adjust the trim so the...
Forum: RV-12/RV-12iS 09-25-2019, 09:19 PM
Replies: 22
Views: 2,677
Posted By Mich48041
The battery contactor uses about 3/4 amp more or...

The battery contactor uses about 3/4 amp more or less. If you touch a contactor after it has been on for a while, it will be very warm, maybe hot. No, there is no phantom load when the master...
Forum: RV-12/RV-12iS 09-25-2019, 06:55 PM
Replies: 22
Views: 2,677
Posted By Mich48041
Connect the spare battery to the load side of the...

Connect the spare battery to the load side of the master contactor and leave the master switch off. That will eliminate 3/4 of an amp that the battery contactor draws.
Forum: RV-12/RV-12iS 09-25-2019, 04:21 PM
Replies: 3
Views: 677
Posted By Mich48041
While you have the flap handle apart, modify the...

While you have the flap handle apart, modify the button or replace it with Van's new button if it has not already been done. Read this...
Forum: RV-12/RV-12iS 09-24-2019, 07:32 PM
Replies: 11
Views: 912
Posted By Mich48041
No, not if the plane has completed the flight...

No, not if the plane has completed the flight testing phase. You are free to make any changes desired as long as the plane still meets the definition of LSA, i.e., speed, weight, fixed gear, fixed...
Forum: RV-12/RV-12iS 09-24-2019, 07:21 PM
Replies: 3
Views: 625
Posted By Mich48041
See Page 1-17 of the maintenance manual or search...

See Page 1-17 of the maintenance manual or search for "Lifting and supporting".
If working by yourself, the nose can be lifted by hanging 60 or 70 pounds of weight on the tail tie-down. Slide the...
Forum: Electrical Systems 09-24-2019, 09:31 AM
Replies: 14
Views: 676
Posted By Mich48041
Many, if not most, avionics are grounded...

Many, if not most, avionics are grounded internally to their cases which are grounded to the airframe.
So yes, it would be normal for avionics to work with the ground power wire disconnected,...
Forum: Electrical Systems 09-20-2019, 09:34 PM
Replies: 11
Views: 845
Posted By Mich48041
Even though aux battery voltage can be measured...

Even though aux battery voltage can be measured on the main bus under the conditions described by the original poster, very little current can flow through the path that I described in post #6 above....
Forum: Electrical Systems 09-20-2019, 12:44 AM
Replies: 11
Views: 845
Posted By Mich48041
I was able to get the picture of the schematic...

I was able to get the picture of the schematic before it disappeared. It looked like an unmodified Bob N. Z-14 (http://www.aeroelectric.com/PPS/Adobe_Architecture_Pdfs/). There are two pages:...
Forum: RV-12/RV-12iS 09-17-2019, 02:16 PM
Replies: 10
Views: 2,448
Posted By Mich48041
If 3 rivets were never installed, then it is...

If 3 rivets were never installed, then it is possible that you broke the one that was installed. But it is unlikely that you broke 4 rivets.
Forum: Electrical Systems 09-15-2019, 08:22 AM
Replies: 11
Views: 845
Posted By Mich48041
The behavior that you have observed is normal for...

The behavior that you have observed is normal for the conditions that you described.
No, the bulb will not blow. Current is limited by the resistance of the lamp filament.
Too high voltage or...
Forum: Electrical Systems 09-05-2019, 04:06 PM
Replies: 21
Views: 2,484
Posted By Mich48041
No, nothing is suffering at 13 VDC. Many...

No, nothing is suffering at 13 VDC. Many avionics are rated at 10 to 30 volts. Alternators have failed many times.
The pilot keeps flying as the voltage slowly drops to 13, 12, maybe down to 11. ...
Forum: RV-12/RV-12iS 09-05-2019, 06:02 AM
Replies: 36
Views: 3,952
Posted By Mich48041
So the battery voltage has been dropping 0.1...

So the battery voltage has been dropping 0.1 volts per day for two days.
Is that with the battery connected to the aircraft electrical system?
Or is at least one battery terminal disconnected?
The...
Forum: RV-12/RV-12iS 09-04-2019, 12:18 PM
Replies: 20
Views: 2,615
Posted By Mich48041
I do not think it matters if the aircraft is...

I do not think it matters if the aircraft is registered as E-AB or E-LSA as long as
it is properly equipped and the operating limitations allow IFR.
Mel, we need your input.
Forum: Electrical Systems 09-03-2019, 09:33 PM
Replies: 21
Views: 2,484
Posted By Mich48041
Diode Manufacturer's data sheets have graphs that...

Diode Manufacturer's data sheets have graphs that show voltage drop.
The data sheet for your diode will show that as current increases, so does voltage drop.
Forum: RV-12/RV-12iS 09-03-2019, 09:15 PM
Replies: 8
Views: 842
Posted By Mich48041
Make sure that there is battery voltage on...

Make sure that there is battery voltage on regulator terminal "C" When the master switch is turned on.
Forum: RV-12/RV-12iS 09-03-2019, 09:14 PM
Replies: 8
Views: 842
Posted By Mich48041
It is unlikely that the capacitor is the...

It is unlikely that the capacitor is the problem.
The most likely cause of charging system failure on the RV-12 is the Ducati voltage regulator.
Some RV-12 owners have replaced the Ducati with John...
Forum: Electrical Systems 09-02-2019, 09:23 PM
Replies: 13
Views: 1,520
Posted By Mich48041
It could just be an old weak fuse. A bad fuse...

It could just be an old weak fuse. A bad fuse holder connection can generate heat which will blow a fuse.
Forum: RV-12/RV-12iS 09-01-2019, 07:08 AM
Replies: 73
Views: 8,594
Posted By Mich48041
With the D-180 RV-12, The GPS audio does not get...

With the D-180 RV-12, The GPS audio does not get
amplified by Van's control board. Use a ground loop isolator between the iFly
and the Flightcom 403 intercom pins 18 and 19 aux music...
Forum: RV-12/RV-12iS 08-31-2019, 06:07 PM
Replies: 36
Views: 3,952
Posted By Mich48041
Many Ducati voltage regulators put out less than...

Many Ducati voltage regulators put out less than 14 volts. My Ducati put out
13.8 volts. A friend's Ducati puts out 13.7 volts. I now have a John Deere
voltage regulator that puts out 14.1 when...
Forum: RV-12/RV-12iS 08-31-2019, 09:25 AM
Replies: 146
Views: 29,186
Posted By Mich48041
I measured 0.16 inch thickness of the old BR hub...

I measured 0.16 inch thickness of the old BR hub at the center weakest point.
The new D1 hub measures 0.27 inch at the same location.
So the D1 hub is more than a tenth of an inch thicker than the...
Forum: Electrical Systems 08-29-2019, 09:05 AM
Replies: 19
Views: 1,711
Posted By Mich48041
The reason a problem is showing up after 4 years...

The reason a problem is showing up after 4 years is because it took that long for
corrosion to form on a bad connection. Take all connections apart, both power and ground,
and clean and reassemble....
Forum: RV-12/RV-12iS 08-26-2019, 12:37 PM
Replies: 14
Views: 1,596
Posted By Mich48041
The D-180 Installation Guide agrees with Mike M. ...

The D-180 Installation Guide agrees with Mike M. It states,
The test is best performed while ALL electrical loads are turned on.
This is a valid test no matter what the brand or model of avionics.
Forum: RV-12/RV-12iS 08-22-2019, 02:48 PM
Replies: 8
Views: 1,204
Posted By Mich48041
Search for "orange citrus cleaner". Try on small...

Search for "orange citrus cleaner". Try on small inconspicuous area first.
Forum: RV-12/RV-12iS 08-08-2019, 09:00 PM
Replies: 22
Views: 3,536
Posted By Mich48041
I put one gallon into my vehicle to purge the...

I put one gallon into my vehicle to purge the line before filling cans for the airplane.
Forum: RV-12/RV-12iS 08-07-2019, 08:55 PM
Replies: 10
Views: 2,401
Posted By Mich48041
If each pair of Nord Lock washers is installed...

If each pair of Nord Lock washers is installed correctly with the beveled sides facing each other, it takes considerably more torque to loosen the bolts than it did to tighten them. They are not...
Forum: RV-12/RV-12iS 08-06-2019, 02:48 PM
Replies: 73
Views: 8,594
Posted By Mich48041
My early model iFly 740 does interface with the...

My early model iFly 740 does interface with the D-180 via a USB-Serial converter. I do not know if the new 470B has a serial output or not. I did not try connecting the 740 to the ELT. But I was...
Forum: Electrical Systems 08-03-2019, 03:55 PM
Replies: 35
Views: 2,164
Posted By Mich48041
Most builders are better off using one of Bob...

Most builders are better off using one of Bob Nuckolls' designs instead of
designing their own. Z-13/8 is Bob's favorite. Builders get satisfaction by using
their ingenuity to "improve" upon the...
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