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Search: Posts Made By: Piper J3
Forum: RV-12/RV-12iS 09-13-2021, 11:53 AM
Replies: 11
Views: 901
Posted By Piper J3
I would caution against using a woven fiberglass...

I would caution against using a woven fiberglass cloth for wrapping the muffler. I used high-temp wrap on the right front exhaust tube with the thought of shielding the oil line that passes through...
Forum: RV-12/RV-12iS 09-13-2021, 11:37 AM
Replies: 11
Views: 901
Posted By Piper J3
Any chance of posting some photos? I'm curious...

Any chance of posting some photos? I'm curious what type of wrap you put on the muffler...
Forum: RV-12/RV-12iS 09-13-2021, 10:19 AM
Replies: 1
Views: 244
Posted By Piper J3
Flightcom 403 Intercom Muting…

I bought my RV-12 from original builder six years ago. My plane is an early SN with D180 instrumentation, SL40 Comm, and 403 Intercom.

Recently I have experimented with the Isolate/All switch on...
Forum: RV-12/RV-12iS 09-13-2021, 10:05 AM
Replies: 4
Views: 488
Posted By Piper J3
Don't know about Triple Tree, but I've been...

Don't know about Triple Tree, but I've been flying my 12 with wheel pants off of private grass strip for six years with no problems...
Forum: RV-12/RV-12iS 09-10-2021, 06:34 PM
Replies: 5
Views: 386
Posted By Piper J3
Coolant Loss…

I notice a slight decline in coolant level in the overflow tank – maybe 1/16” to 1/8” change in level over 20 hours operation. I have removed cowling and looked for leak and found none. At end of...
Forum: COMM 09-08-2021, 10:46 PM
Replies: 12
Views: 514
Posted By Piper J3
Actual problem was stuck stall switch. Pulling...

Actual problem was stuck stall switch. Pulling audio fuse isolated the problem...
Forum: COMM 09-08-2021, 10:24 AM
Replies: 12
Views: 514
Posted By Piper J3
The problem is fixed. My friend – 83 YO Navy...

The problem is fixed. My friend – 83 YO Navy Crew Chief on A4 Skyhawk’s on two Aircraft Carriers (USN ’58 and ’59) found the problem. He suggested that something external to the radio was the...
Forum: COMM 09-07-2021, 02:44 AM
Replies: 12
Views: 514
Posted By Piper J3
Question - Can I disconnect the antenna coax at...

Question - Can I disconnect the antenna coax at the back of the tray and power radio for a test? I won't push Tx button. Does this make sense to try?
Forum: COMM 09-06-2021, 05:33 PM
Replies: 12
Views: 514
Posted By Piper J3
I was thinking about running a "test coax" from...

I was thinking about running a "test coax" from radio tray to belly antenna kind of externally – just in the hanger for a test. I know radio has to have antenna for load. What coax designation...
Forum: COMM 09-06-2021, 05:13 PM
Replies: 12
Views: 514
Posted By Piper J3
No, radio worked flawlessly for 3+ years.

No, radio worked flawlessly for 3+ years.
Forum: COMM 09-06-2021, 04:49 PM
Replies: 12
Views: 514
Posted By Piper J3
Need Help w/ Squeal - Garmin GTR200 in RV-12

We have a four year old RV-12 built by Synergy in Eugene, OR. Airplane has dual HDX, autopilot, ADSB-in/out, Lightspeed Zulu3 headset. No problems until a few months ago when Comm radio started...
Forum: RV-12/RV-12iS 09-06-2021, 12:58 PM
Replies: 8
Views: 616
Posted By Piper J3
The John Deere Voltage Regulator AM101406 that...

The John Deere Voltage Regulator AM101406 that failed is mounted in original position on the firewall shelf. When I installed this VR to replace the Ducati that failed at 100TT, I added a thick...
Forum: RV-12/RV-12iS 09-05-2021, 12:20 PM
Replies: 8
Views: 616
Posted By Piper J3
Right, I bought my RV-12 from original builder...

Right, I bought my RV-12 from original builder and now find some of the EMS presets are incorrect. I just finished putting correct values in, and as you point out, I should now get correct early...
Forum: RV-12/RV-12iS 09-05-2021, 12:00 PM
Replies: 8
Views: 616
Posted By Piper J3
Outstanding… I just replaced the John Deere...

Outstanding… I just replaced the John Deere AM101406 with spare that I carry in the baggage compartment. All good with 13.9 V in cruise flight.

I think the old JD VR took a dump and then proceeded...
Forum: RV-12/RV-12iS 09-05-2021, 07:44 AM
Replies: 8
Views: 616
Posted By Piper J3
Thanks Joe. Raining today, so I'll check again...

Thanks Joe. Raining today, so I'll check again for bad connections / corrosion and then probably replace VR with spare JD unit I keep in baggage compartment travel kit. Weather tomorrow is looking...
Forum: RV-12/RV-12iS 09-04-2021, 02:35 PM
Replies: 8
Views: 616
Posted By Piper J3
Charging Over Voltage D-180

Original battery from 2012 (700TT) was getting weak so I bought new Odyssey PC-680 and installed yesterday. Flew 2.5 today and had overvoltage warning. I have dual screen D180 and John Deere VR...
Forum: RV-12/RV-12iS 08-29-2021, 07:38 AM
Replies: 13
Views: 1,235
Posted By Piper J3
Telecoil was originally developed for hearing...

Telecoil was originally developed for hearing aids to improve sound quality when using land-line telephones; hence, the name Telecoil. Now with Bluetooth cell phones, the audio is “streamed”...
Forum: RV-12/RV-12iS 08-28-2021, 12:27 PM
Replies: 13
Views: 1,235
Posted By Piper J3
I forgot to mention in post #1 above that...

I forgot to mention in post #1 above that Telecoil program can also be adjusted for frequency equalization just like the normal hearing program and TV streaming program.

Such things they have...
Forum: RV-12/RV-12iS 08-27-2021, 03:43 PM
Replies: 13
Views: 1,235
Posted By Piper J3
Sure… Philips Brand HearLink 9010 miniRITE...

Sure…

Philips Brand HearLink 9010 miniRITE T
Purchased at Costco - Mar 2019

The key is a digital hearing aid with multiple programs selectable by Bluetooth cell phone. Hearing aid needs to have...
Forum: RV-12/RV-12iS 08-25-2021, 07:30 PM
Replies: 13
Views: 1,235
Posted By Piper J3
Using Headset with Hearing Aids…

I posted this about a year ago in VAF > Main > RV General Discussion > Deaf Pilots. I’d like to post here in the RV-12 thread if moderators will allow - reason is many Light Sport Pilots are older...
Forum: RV-12/RV-12iS 08-24-2021, 07:37 PM
Replies: 7
Views: 934
Posted By Piper J3
Why not continue to run existing plugs?

Why not continue to run existing plugs?
Forum: RV-12/RV-12iS 08-24-2021, 07:16 AM
Replies: 61
Views: 7,643
Posted By Piper J3
A couple of items… Make sure tail of torsion...

A couple of items…

Make sure tail of torsion spring is against the new retaining plate. It’s easy to have tail of spring misplaced – I did it. I don’t have actual photo, so I made sketch...
Forum: RV-12/RV-12iS 08-23-2021, 01:20 PM
Replies: 16
Views: 1,695
Posted By Piper J3
I would watch this... https://youtu.be/_OuNJ14RyaQ

I would watch this... https://youtu.be/_OuNJ14RyaQ
Forum: RV-12/RV-12iS 08-22-2021, 10:54 AM
Replies: 16
Views: 1,695
Posted By Piper J3
Let me be the first to join the chorus... Design...

Let me be the first to join the chorus... Design limitation for the RV-12 is Never Exceed VNE red line = 136 KTAS per POH. I suspect Van's may have very good data to back up this spec...
Forum: RV-12/RV-12iS 08-22-2021, 01:27 AM
Replies: 45
Views: 4,650
Posted By Piper J3
Yes, Bing carb floats have caused numerous...

Yes, Bing carb floats have caused numerous overflow problems and severe engine roughness – I have experienced both. To make matters worse, Bing keeps coming up with latest manufacturing revision at...
Forum: RV-12/RV-12iS 08-21-2021, 10:55 AM
Replies: 45
Views: 4,650
Posted By Piper J3
What's even more fun is to out-climb and out-run...

What's even more fun is to out-climb and out-run a C-172 any day of the week... :D
Forum: RV-12/RV-12iS 08-20-2021, 11:14 AM
Replies: 23
Views: 1,706
Posted By Piper J3
RV-12 iS SLSA KBVS. Ooops... my bad. I didn't...

RV-12 iS SLSA KBVS. Ooops... my bad. I didn't see you have S-LSA. I doubt your mechanical will add grease fitting. Modifications to S-SLA ares prohibited.
Forum: RV-12/RV-12iS 08-20-2021, 07:19 AM
Replies: 23
Views: 1,706
Posted By Piper J3
See my post #29 listed above. No disassembly...

See my post #29 listed above. No disassembly required. Drill small hole - chips will follow drill bit and be extracted during drilling process. Follow with 1/4" drill x 1/4" deep c'bore. Use a...
Forum: RV-12/RV-12iS 08-20-2021, 02:02 AM
Replies: 23
Views: 1,706
Posted By Piper J3
Breakout friction needs to set correct with...

Breakout friction needs to set correct with Belleville washers on nose strut pivot. Too much friction will prevent centering. Also, pivot bushings need to be well lubricated. It’s surprising how...
Forum: RV-12/RV-12iS 08-19-2021, 09:17 AM
Replies: 15
Views: 1,904
Posted By Piper J3
Stack tolerances and build technique can produce...

Stack tolerances and build technique can produce fore/aft wing tip movement noticed during final assembly or early-on in the flight program. It’s not too uncommon to remove rear stub spar and...
Forum: RV-12/RV-12iS 08-19-2021, 02:16 AM
Replies: 15
Views: 1,904
Posted By Piper J3
Very interesting. Thank you Scott. As always,...

Very interesting. Thank you Scott. As always, we appreciate your time and thorough explanations...
Forum: RV-12/RV-12iS 08-18-2021, 07:04 PM
Replies: 15
Views: 1,904
Posted By Piper J3
Scott – I've been thinking about this all...

Scott –

I've been thinking about this all day.... You say the highest loads on the spar stubs are an inward compression load at the forward stub. I’m trying to figure out how the forward stub sees...
Forum: RV-12/RV-12iS 08-16-2021, 10:23 AM
Replies: 3
Views: 837
Posted By Piper J3
Another way to “look” at the 912ULS is it is...

Another way to “look” at the 912ULS is it is mechanical FADEC with single-lever control. Mixture is self-adjusting via diaphragm in carburetor and no carb heat required with RV-12 installation. ...
Forum: RV-12/RV-12iS 08-15-2021, 08:10 PM
Replies: 12
Views: 1,415
Posted By Piper J3
Does electronics have capability to test inputs? ...

Does electronics have capability to test inputs? Perhaps manually operate stall vane switch and see if input changes state on the EFIS.
Forum: RV-12/RV-12iS 08-15-2021, 03:23 PM
Replies: 3
Views: 837
Posted By Piper J3
Having a Good 912ULS Run….

I bought my RV-12 from original builder with 48TT in October 2015. I just completed 75 hour oil change at 700TT. Airframe is early SN 120058 and engine was manufactured in Feb 2009.

Timeline and...
Forum: RV-12/RV-12iS 08-11-2021, 07:46 PM
Replies: 35
Views: 4,709
Posted By Piper J3
Looks like safety wire is missing for left carb...

Looks like safety wire is missing for left carb air filter.
Forum: RV-12/RV-12iS 08-11-2021, 09:31 AM
Replies: 61
Views: 7,643
Posted By Piper J3
Good info Tony... My clips are installed in...

Good info Tony... My clips are installed in position #2 as are two other 912 ULS RV-12's that I know of. All is well with no rich mixture operation. If the OP has rich mixture he can certainly try...
Forum: RV-12/RV-12iS 08-11-2021, 08:43 AM
Replies: 61
Views: 7,643
Posted By Piper J3
See drawing in post #39 above. Circlip belongs...

See drawing in post #39 above. Circlip belongs in 2nd groove from top. If you have clips installed in 3rd groove from top it is setting the needle taper higher in the main jet and engine will run...
Forum: RV-12/RV-12iS 08-10-2021, 02:01 PM
Replies: 61
Views: 7,643
Posted By Piper J3
Best practice when rebuilding carbs is to...

Best practice when rebuilding carbs is to disassemble / reassemble one at a time. This way no parts get interchanged.

Perhaps check circlip position on main needles. I forget… I think clip...
Forum: RV-12/RV-12iS 08-09-2021, 02:16 PM
Replies: 61
Views: 7,643
Posted By Piper J3
A little off-topic, but it’s a slow day… I saw...

A little off-topic, but it’s a slow day… I saw “Amish” and had a good laugh. When my granddaughters visit, if any severe behavioral problems crop up that need attention – I make them “Amish”- no...
Forum: RV-12/RV-12iS 08-07-2021, 02:25 PM
Replies: 61
Views: 7,643
Posted By Piper J3
As mentioned above... higher (100F) EGT on right...

As mentioned above... higher (100F) EGT on right side is seen by lots of folks running 912ULS in RV-12 when engine is making high power. I wouldn't worry about it.
Forum: RV-12/RV-12iS 08-06-2021, 02:12 PM
Replies: 35
Views: 6,169
Posted By Piper J3
I bought qty (8) of these on eBay in 2019 for...

I bought qty (8) of these on eBay in 2019 for $50. They are hard phenolic plastic and not the original soft rubber.

NGK - Spark Plug Resistor Cover - 90deg. Elbow Type (LB05F) 8051
Forum: RV-12/RV-12iS 08-06-2021, 09:03 AM
Replies: 11
Views: 1,368
Posted By Piper J3
Keep the unmixed ProSeal and hardener in a...

Keep the unmixed ProSeal and hardener in a freezer to slow deterioration and increase shelf life.
Forum: RV-12/RV-12iS 08-06-2021, 08:11 AM
Replies: 61
Views: 7,643
Posted By Piper J3
Per your photo in post #11… check rubber hose for...

Per your photo in post #11… check rubber hose for cross-over balance tube. Hose appears to have a bend and I think it should be fairly straight routing. Also, the hose clamp on the manifold fitting...
Forum: RV-12/RV-12iS 08-05-2021, 06:32 PM
Replies: 12
Views: 1,991
Posted By Piper J3
You might want to use stainless steel socket...

You might want to use stainless steel socket head. The mild steel black-oxide bolt in your photo will rust in humid south.
Forum: RV-12/RV-12iS 08-05-2021, 04:59 PM
Replies: 61
Views: 7,643
Posted By Piper J3
With COVID this past year, I haven’t flown in my...

With COVID this past year, I haven’t flown in my friend’s RV-12. We fly Loose formation a lot and compare temps while chit-chatting on 122.75. His exhaust temps are always 100F higher than mine at...
Forum: RV-12/RV-12iS 08-05-2021, 04:11 PM
Replies: 61
Views: 7,643
Posted By Piper J3
I think most folks see higher EGT on right side –...

I think most folks see higher EGT on right side – I do. I think perhaps the oil tank on the right side influences the right rear exhaust tube which is in close proximity.

Here are two photos of my...
Forum: RV-12/RV-12iS 08-05-2021, 02:01 PM
Replies: 61
Views: 7,643
Posted By Piper J3
I'm having a tough time figuring out how...

I'm having a tough time figuring out how induction leak at both carbs is producing vibration, short spark plug life and very dirty oil as OP states.

I'll keep an open mind and wait for final...
Forum: RV-12/RV-12iS 08-04-2021, 08:10 PM
Replies: 61
Views: 7,643
Posted By Piper J3
When manifold leakage is fixed please report back...

When manifold leakage is fixed please report back on vibration, short spark plug life and very dirty oil. I'll be interested if fix solves any of these problems...
Forum: RV-12/RV-12iS 08-04-2021, 02:09 PM
Replies: 61
Views: 7,643
Posted By Piper J3
O-ring on the manifold side of the drip tray, and...

O-ring on the manifold side of the drip tray, and nothing additional added on the carb. socket side. The standard carb. socket has an integral O-ring molded into it which takes care of sealing on...
Forum: RV-7/7A 08-03-2021, 12:14 PM
Replies: 1,138
Views: 1,218,104
Posted By Piper J3
Cockpit sharing is ForeFlight feature. I...

Cockpit sharing is ForeFlight feature. I actually share iPhone/iPad1/iPad2
Forum: RV-12/RV-12iS 08-03-2021, 01:05 AM
Replies: 12
Views: 1,991
Posted By Piper J3
This is accepted practice for safety wiring the...

This is accepted practice for safety wiring the magnetic plug. Wire looped around angled socket head bolt cannot work loose when twisted wire is tensioned correctly.

I have 700TT and no problem...
Forum: RV-7/7A 08-03-2021, 12:28 AM
Replies: 1,138
Views: 1,218,104
Posted By Piper J3
I have two mini iPads mounted in my RV-12 both...

I have two mini iPads mounted in my RV-12 both running ForeFlight w/ cockpit sharing enabled. Angled iPad shows route and iPad above center stack is zoomed-in to show close traffic. I removed a 296...
Forum: RV-12/RV-12iS 08-02-2021, 11:50 AM
Replies: 48
Views: 11,930
Posted By Piper J3
So, both of us have same observation. I’m...

So, both of us have same observation. I’m inclined to ignore this vibration – it is a known quantity and repeatable. Vibration is accentuated because heavy nose wheel, and add’l weight of fairing,...
Forum: RV-12/RV-12iS 08-01-2021, 01:50 PM
Replies: 48
Views: 11,930
Posted By Piper J3
The new fork axle design uses “wave washers” that...

The new fork axle design uses “wave washers” that do not add very much rotational drag to front wheel. It’s possible the wheel might rotate in flight from air flow. My nose wheel vibrates as it...
Forum: RV-12/RV-12iS 07-29-2021, 09:30 AM
Replies: 9
Views: 2,447
Posted By Piper J3
That’s pretty funny. I’ve seen YouTube of Rotax...

That’s pretty funny. I’ve seen YouTube of Rotax 912 assembly at Austria factory and they have a dedicated computer logging all torque values with complete database for each engine by S/N. Looks...
Forum: RV-12/RV-12iS 07-28-2021, 11:51 AM
Replies: 7
Views: 1,063
Posted By Piper J3
Get the braided hoses with abrasion cover. Use...

Get the braided hoses with abrasion cover.

Use high quality Thomas & Betts Cable Tie Ultraviolet Resistant Nylon with Stainless Steel Locking Device.

I used three cable ties on each gear leg.
Forum: RV-12/RV-12iS 07-27-2021, 05:33 AM
Replies: 2
Views: 740
Posted By Piper J3
Need to use caution. Sometimes you see 912 on...

Need to use caution. Sometimes you see 912 on eBay that I suspect might be used military. The RQ-1 Predator used the 912 and some of these engines had over 5000 hours run time.
Forum: RV-12/RV-12iS 07-22-2021, 06:59 PM
Replies: 8
Views: 1,565
Posted By Piper J3
TT on engine? What was weight of carb floats?

TT on engine? What was weight of carb floats?
Forum: RV-12/RV-12iS 07-17-2021, 02:16 PM
Replies: 7
Views: 1,210
Posted By Piper J3
You can still use straight hose for cyl #3 using...

You can still use straight hose for cyl #3 using rubber instead of silicone. The stainless steel Goodyear E-Z Coil will keep the hose at a nice smooth radius Vs. sharp restrictive bend of molded...
Forum: RV-12/RV-12iS 07-17-2021, 06:40 AM
Replies: 7
Views: 1,210
Posted By Piper J3
I used Silicone High Performance Heater Hoses. I...

I used Silicone High Performance Heater Hoses. I used straight hose instead of a molded 90 degree elbow hose for the top of the #3 cylinder. I added a stainless steel Goodyear E-Z Coil to keep the...
Forum: RV-12/RV-12iS 07-15-2021, 01:11 AM
Replies: 8
Views: 1,470
Posted By Piper J3
Even so, just need “some” fuel in the tank to...

Even so, just need “some” fuel in the tank to prevent fuel/air ratio from becoming explosive. An empty tank, with only wetted surfaces, is explosion hazard. Automobiles have electric fuel pump...
Forum: RV-12/RV-12iS 07-15-2021, 01:00 AM
Replies: 15
Views: 2,525
Posted By Piper J3
Van’s instituted a Service Bulletin very early-on...

Van’s instituted a Service Bulletin very early-on to strengthen the fuel tank and mounting hardware. If crash was severe enough, the main landing gear could twist the U-channel carry-thru and the...
Forum: RV-12/RV-12iS 07-13-2021, 09:32 AM
Replies: 9
Views: 1,343
Posted By Piper J3
Car sees salt in winter and is exposed to...

Car sees salt in winter and is exposed to elements (parking lot 10 hours while at work). Airplane is in hanger something like 99% of time. Paint is happy...
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