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Search: Posts Made By: JBPILOT
Forum: RV-12/RV-12iS 04-06-2021, 09:51 AM
Replies: 29
Views: 2,507
Posted By JBPILOT
More suggestions - -

The flywheel 'trigger' leads that come to the bottom of the ign modules are basically the same ( connectors ). The ign boxes are the same. If you carefully mark which is which to start with, you...
Forum: RV-12/RV-12iS 04-02-2021, 07:03 AM
Replies: 76
Views: 20,835
Posted By JBPILOT
Another option that works - -

Harbor Freight sells a small tail pipe expander that works fast and easy. The original wing seals did get stiff in cold weather. One wrench and the tailpipe expander are all you need.
Forum: RV-12/RV-12iS 04-02-2021, 06:58 AM
Replies: 11
Views: 839
Posted By JBPILOT
I have a VERY early build - -

I added an AP years later. Dynon '74' as I recall. The original wiring supported it. Your picture is not the same as mine. Has to be narrow to fit where they originally designed it. Not sure...
Forum: RV-12/RV-12iS 03-09-2021, 07:42 AM
Replies: 4
Views: 721
Posted By JBPILOT
PRINT SHOP - -

I took the file to a local printer. They put it on the largest printer they had. Certainly helps.
Forum: RV-12/RV-12iS 03-03-2021, 07:38 AM
Replies: 29
Views: 2,507
Posted By JBPILOT
Green Stripe Modules - -

Over the last several years I have stated this a few times, but I had both Green Stripe modules fail between 400 - 500 hours. In about 2012, Rotax had a program where they would sell you two new...
Forum: RV-12/RV-12iS 01-19-2021, 09:34 AM
Replies: 25
Views: 3,753
Posted By JBPILOT
RV-12 related - -

Had a friend take off without latching tip up RV-12. Panicked, and turned and landed the best he could downwind. Totaled plane and bruised himself a bunch. Best not to try to close it. Slow down...
Forum: RV-12/RV-12iS 12-10-2020, 05:36 AM
Replies: 12
Views: 3,505
Posted By JBPILOT
THANKS ! - -

By also slowing the air flow thru the radiator ( heater ), it allows the air to heat more. Doesn't hurt the engine, and really makes winter flying enjoyable. I designed the oil therm setup also. ...
Forum: RV-12/RV-12iS 12-09-2020, 08:05 AM
Replies: 12
Views: 3,505
Posted By JBPILOT
THANKS - - - - -

My invention of the "Heater Damper Door" is the best thing for winter comfort. A seal kit around the front canopy is needed, and the clear vinyl divider behind the seats was the last piece needed to...
Forum: RV-12/RV-12iS 12-05-2020, 07:22 AM
Replies: 8
Views: 1,068
Posted By JBPILOT
Recent example in my 12 --

Was a fair amount of wind on ground, but a bunch at Alt. Indicated 50 knots direct cross wind. My track and heading were 30 degrees different. A 12 is a light plane and the tail is fair size, it...
Forum: RV-12/RV-12iS 12-04-2020, 02:30 PM
Replies: 36
Views: 7,956
Posted By JBPILOT
Another thought - -

I used a buffer with lambs wool pad. Spins it up nicely after static balancing. I posted about it years ago. Likely still someplace on here.
Forum: RV-12/RV-12iS 11-27-2020, 06:55 AM
Replies: 12
Views: 3,505
Posted By JBPILOT
Found my original suggestion - works well.

https://vansairforce.com/community/showthread.php?t=64145&page=21

This should get you there. It is very hard to see. CLEAR, SOFT VINYL, riveted in place. Taped to floor etc.
Forum: RV-12/RV-12iS 11-26-2020, 06:13 AM
Replies: 16
Views: 3,225
Posted By JBPILOT
Joe described what I was commenting on - -

The connector I was suggesting is under the top engine cowl on the legacy RV-12. White plastic as I recall.
Forum: RV-12/RV-12iS 11-25-2020, 06:50 AM
Replies: 16
Views: 3,225
Posted By JBPILOT
My experience - -

I had the same thing 2 - 3 years ago. Finally found the small connector with the two 'kill' wires must of had a little corrosion. Put electric cleaner spray on connector halves. Then dielectric...
Forum: RV-12/RV-12iS 11-06-2020, 05:09 AM
Replies: 4
Views: 1,449
Posted By JBPILOT
GREEN STRIPE IGN MODULES ?

How old is the engine. If green stripe, then you likely have a bad ign module.
Forum: RV-12/RV-12iS 10-21-2020, 06:20 AM
Replies: 8
Views: 2,786
Posted By JBPILOT
My 912ULS

I have over 1,400 hours. Nothing has changed. Change oil at 100 hours. Never had a drop of 100LL. I think the engine is good for 2,500 - 3,000 hours, maybe more.
Forum: RV General Discussion/News 09-20-2020, 06:10 AM
Replies: 8
Views: 1,720
Posted By JBPILOT
Old infamous himself reporting in - -

1,432.8 as of yesterday. WAAAAAAAAY less hours these days, but still once in a while. Still runs like new.
Forum: Autopilots 09-19-2020, 06:36 AM
Replies: 6
Views: 1,179
Posted By JBPILOT
I have an RV-12 Legacy - -

In 'heading' mode, it wanders. Just the way it is. You need to use NAV if you want the best performance. I have mine set on soft reaction. The stick does not hammer at all. Goes straight if no...
Forum: RV-12/RV-12iS 09-17-2020, 01:04 PM
Replies: 13
Views: 3,019
Posted By JBPILOT
HMMMMMMMMM !

Try it a few times. Shake the snot out of it with carb cleaner. Then WD-40 If you use a light air flow from an air gun, does it read anything then ? If it is really stuck, might want to let it...
Forum: RV-12/RV-12iS 09-16-2020, 06:22 AM
Replies: 13
Views: 3,019
Posted By JBPILOT
Fuel Flow Sender - -

Floscan I think the original one was called.
Forum: RV-12/RV-12iS 09-14-2020, 06:43 AM
Replies: 13
Views: 3,019
Posted By JBPILOT
I have the other version - -

I have stated this before. I called the supplier and they instructed me to fill it 3/4 full of carb cleaner and shake it vigorously for a couple minutes. I had success with doing that for a couple...
Forum: RV-12/RV-12iS 08-31-2020, 06:29 AM
Replies: 9
Views: 2,290
Posted By JBPILOT
Thanks Scott - -

I was not up to date on the IS engine. Thanks. Careful and well stated.
Forum: RV-12/RV-12iS 08-30-2020, 06:25 AM
Replies: 9
Views: 2,290
Posted By JBPILOT
OIL CHANGE - PURGE

I have always used the starter to turn the engine over after oil change. Top plugs out. No stress on engine. I turn it for 5 seconds and make sure the oil level in the tank is going down. ( No...
Forum: RV-12/RV-12iS 08-05-2020, 06:12 AM
Replies: 15
Views: 2,429
Posted By JBPILOT
Tire wear - -

I believe tire wear is based upon weight. If you fly solo mostly, the left tire will have more weight and will stay 'stuck' to the surface more/better. The right side will be lighter and be more...
Forum: RV-12/RV-12iS 08-04-2020, 01:45 PM
Replies: 31
Views: 5,820
Posted By JBPILOT
Regarding oil usage - -

I just finished changing oil and the rest today. Since Rotax changed the required time to change oil to 100 hours if only premium auto fuel, I add a little less than a quart throughout the 100...
Forum: RV-12/RV-12iS 07-24-2020, 06:17 AM
Replies: 21
Views: 7,895
Posted By JBPILOT
Missing spacer

Here is more of my story. When the rear of the ign box assembly drops down, one of the coils rest on the engine mount. It can wear thru the plastic coil covering and start to short out that coil. ...
Forum: RV-12/RV-12iS 07-23-2020, 06:52 AM
Replies: 21
Views: 7,895
Posted By JBPILOT
Ign problem

Don't ask why I know this. Look toward rear of ign box mounting on the under side. There is a small spacer tube to hold up the rear of the boxes. Is it in place ?
Forum: RV-12/RV-12iS 05-14-2020, 07:24 AM
Replies: 11
Views: 2,914
Posted By JBPILOT
JB - -

Maybe you should explain your high CHT's. What are you seeing and when ? Sitting on ground, flying, warm day etc ?
Forum: RV-12/RV-12iS 05-13-2020, 07:01 AM
Replies: 10
Views: 1,407
Posted By JBPILOT
Enlarging holes - -

Use a step bit for enlarging holes. Don't ask how I know this.
Forum: COMM 04-02-2020, 10:41 AM
Replies: 5
Views: 707
Posted By JBPILOT
I would say yes - -

While building the 12, they had us go thru a setup of vol(s). on rear of unit.

EDIT : We had to adjust on the 'mother board'. Not sure how others are set up.
Forum: RV Building Tips/Techniques 04-01-2020, 01:57 PM
Replies: 13
Views: 1,836
Posted By JBPILOT
JUST A NOTE OF POSSIBLE INTEREST

I sealed a fuel tank about 2 months ago. I had about 1/4 of it left ( the 3.5 oz cartridge ). I put a plastic cap on the end and put it into a freezer. I had an oil leak on the front of my pickup...
Forum: RV-12/RV-12iS 02-25-2020, 06:27 AM
Replies: 14
Views: 3,286
Posted By JBPILOT
Good points - -

I feel the new flywheel lessens some of the violent gear lash during start up. Might not be a big issue overall, but it sure starts with way less stress in my opinion. I feel if you take the...
Forum: RV-12/RV-12iS 02-24-2020, 06:08 AM
Replies: 14
Views: 3,286
Posted By JBPILOT
I do compression check at annual - -

and it is 78 - 79 / 80. Nothing much ever changes. A few minor improvements could have made this little motor near perfect. Initially, better soft-start ign boxes. Continued making the floats...
Forum: RV-12/RV-12iS 02-23-2020, 06:32 AM
Replies: 14
Views: 3,286
Posted By JBPILOT
V R - - -

Yes it 'was', but a friend had purchased a S H reg, and never used it. I bought it from him 2 years ago, and I like it. My opinion. The reason for the failures is over-loading them. I never...
Forum: RV-12/RV-12iS 02-22-2020, 06:29 PM
Replies: 14
Views: 3,286
Posted By JBPILOT
What I can remember - -

Uses about a quart of oil in 100 hours. Aeroshell Sport plus 4 oil. Change oil at 100 hours. Never had 100 LL in it. Prop original. Updated front hub half. Had to replace both GREEN stripe...
Forum: RV-12/RV-12iS 02-22-2020, 02:41 PM
Replies: 14
Views: 3,286
Posted By JBPILOT
Yet another milestone today 2-22-2020

https://i.postimg.cc/xdV2zx42/RV-12-Milestone-2-22-2020-MG-3354.jpg (https://postimages.org/)
Forum: RV-12/RV-12iS 02-18-2020, 07:09 AM
Replies: 2
Views: 1,938
Posted By JBPILOT
Why did I change it - - - -

After bragging about my 10 year old battery still being good, at 10 years and 1 month, it started to show signs of getting tired. It kicked back one time while starting, and I knew it was what...
Forum: RV-12/RV-12iS 02-15-2020, 12:54 PM
Replies: 2
Views: 1,938
Posted By JBPILOT
STARTING AFTER NEW FLYWHEEL

I installed the latest flywheel with initial starting at 3 degrees ATDC. I have had to change starting procedure since then. I schedule Flyouts, and the plane will sit for say 1 - 1 1/2 hours. ...
Forum: ADS-B 11-17-2019, 04:55 PM
Replies: 15
Views: 3,585
Posted By JBPILOT
Just another comment - -

I started with the 'sniffer' method, and have never gotten a bad report. GTX-327, Echo and their GPS source. I have not adjusted anything from day one. Has always seemed to work well.
Forum: RV-12/RV-12iS 10-22-2019, 05:46 AM
Replies: 8
Views: 3,036
Posted By JBPILOT
I ordered my kit day one

I had both ign modules fail between 400 - 500 hours. Back then they had a program where they would sell you two new YELLOW strip ones for much less than normal retail. Have 1,370 hours now. Not a...
Forum: Electrical Systems 10-04-2019, 06:18 AM
Replies: 77
Views: 18,815
Posted By JBPILOT
My experience with PC680

My RV-12 has a VERY low demand on the battery. Takes 5 seconds or less to start it. I am sure that makes a major difference. Mine is 10 years old, and I have 1,360 hours on it.
Forum: RV-12/RV-12iS 09-20-2019, 05:38 PM
Replies: 0
Views: 754
Posted By JBPILOT
CHANGING COOLANT HOSES

https://i.postimg.cc/GpqMMF1w/RV-12-Hose-IMG-2928.jpg (https://postimages.org/)

https://i.postimg.cc/C5FxFpQf/RV-12-Hose-IMG-2929.jpg...
Forum: Alternative Engines 05-28-2019, 07:08 PM
Replies: 5
Views: 1,122
Posted By JBPILOT
Hey Gary - -

Can you post a link to a youtube video with audio so we can hear it ourselves ?
Forum: RV-12/RV-12iS 05-14-2019, 09:11 AM
Replies: 8
Views: 2,208
Posted By JBPILOT
Hey John - -

I had a nose wheel bolt too loose, and in fact the front tire was spinning and slightly out of balance. Check how tight it is and spin it on the ground and see how fast it stops spinning.
Forum: RV-12/RV-12iS 05-14-2019, 06:32 AM
Replies: 6
Views: 1,696
Posted By JBPILOT
Curious - - - - -

Was your main purpose to be able to change tires etc. ?
Forum: RV-12/RV-12iS 04-22-2019, 03:28 PM
Replies: 339
Views: 413,406
Posted By JBPILOT
One person Lower Cowl Holder

http://i68.tinypic.com/152fj7p.jpg

I may have posted this some time back, but was thinking about it today after I used it. I hook the heavy wire on the lowest hinge loop of the upper hinge, and you...
Forum: RV-12/RV-12iS 04-14-2019, 02:50 PM
Replies: 10
Views: 1,904
Posted By JBPILOT
Mark -

Shutoff is before flow sender. Don't have to drain it. Shut off flow, drain gascolator, pull sender.
Forum: RV-12/RV-12iS 04-14-2019, 05:09 AM
Replies: 10
Views: 1,904
Posted By JBPILOT
I have done it 3 times I think - -

Just remove it and fill it 3/4 full of carb cleaner. Shake it as hard as you can for maybe 2 - 3 minutes. What I found last time is, after you dump it out, fill it 3/4 with WD-40 and shake it some...
Forum: RV-12/RV-12iS 04-12-2019, 06:48 AM
Replies: 30
Views: 5,947
Posted By JBPILOT
Dave - -

If you really want to spend some time, set it up like I did and see what it reads in the air. Also, what happens at different RPM's. Just reboot ( in the air ), and test at whatever rpm's. ...
Forum: RV-12/RV-12iS 04-11-2019, 08:35 PM
Replies: 30
Views: 5,947
Posted By JBPILOT
Dave -

Maybe it is an issue with my plane. That is why I wanted to hear from others. When at lower rpm's, my plane will sit fairly firmly. Once I get to 4500 and up, it just moves. It will not sit...
Forum: RV-12/RV-12iS 04-11-2019, 05:53 PM
Replies: 30
Views: 5,947
Posted By JBPILOT
Well Dave - I'll try - -

1. A bunch. Had a friend help me do the "on ground" balance, and I think we both felt it was good. Took 10.5G at spinner screws to make it say 'good' again.
2. Too much time passed. Don't...
Forum: RV-12/RV-12iS 04-11-2019, 09:13 AM
Replies: 30
Views: 5,947
Posted By JBPILOT
Hope this does not open a large can of worms - but -

I am part owner of a Prop Balancer. I was having problems getting a good balance. This very light plane would just dance around if you tried to get the throttle up to max static rpm's. It caused...
Forum: RV-12/RV-12iS 03-18-2019, 01:12 PM
Replies: 10
Views: 2,522
Posted By JBPILOT
Oil Therm

Hi Pat. I developed the first oil therm ( using Thermostassis ), and it has been great. It cuts down warmup time by a bunch. I can start engine, and start taxiing right away, and be at needed...
Forum: RV-12/RV-12iS 03-17-2019, 02:54 PM
Replies: 10
Views: 2,522
Posted By JBPILOT
RV-12 1300 Hours

I do check my Carb balance at least once a year. Seems very stable after this many years, which I would expect.

Have prop set to .1 degree also. Always has had a vibration RPM about mid-range. ...
Forum: RV-12/RV-12iS 03-17-2019, 07:40 AM
Replies: 10
Views: 2,522
Posted By JBPILOT
RV-12 912ULS history with 1300 hours

1. Had to replace both original 'Green Stripe' Ign Modules. Both failed between 400 - 500 hours. Went to new Yellow Stripe 'soft-start' modules.

2. Always used Aeroshell Sport plus 4, and ALWAYS...
Forum: RV-12/RV-12iS 03-16-2019, 02:57 PM
Replies: 10
Views: 2,522
Posted By JBPILOT
MILESTONE RV-12 1300 hours

http://i67.tinypic.com/13zn4tw.jpg

Been a terrible winter. First flight in 2 full months. Almost forgot to take pic.
Forum: RV-12/RV-12iS 01-26-2019, 12:24 PM
Replies: 9
Views: 2,050
Posted By JBPILOT
True - -

I pop mine off and put in case and store it away from light and heat. Works ok then.
Forum: RV-12/RV-12iS 01-26-2019, 06:28 AM
Replies: 9
Views: 2,050
Posted By JBPILOT
IPad Pro 9.7"

http://i63.tinypic.com/2qch6rk.jpg

This pic was first build. I have correct 9.7" EZ-roller mount now. My pic was to prove in direct sunlight flying, it works very well.
Forum: RV-12/RV-12iS 01-23-2019, 06:43 AM
Replies: 8
Views: 1,842
Posted By JBPILOT
Just for note - -

I recently replaced my first one at over 1,100 hours. I did have connection issues a couple time thru the years.
Forum: RV-12/RV-12iS 01-21-2019, 06:21 PM
Replies: 23
Views: 4,362
Posted By JBPILOT
Well - been a while - -

had to go back and see if I had them on the bottom. Found a pic where they are on bottom. Sorry - Carry on.
Forum: RV-12/RV-12iS 01-21-2019, 05:46 PM
Replies: 76
Views: 20,835
Posted By JBPILOT
'C' clamp method - -

I just put the 'C' clamps on tight so they don't move ( thus H D ). You will get a little surface mark, but nothing serious. I then use a ratchet type tie-down between them ( all on the inside ),...
Forum: RV-12/RV-12iS 01-21-2019, 11:38 AM
Replies: 23
Views: 4,362
Posted By JBPILOT
Hmmmmmm - -

Just another note : It appears in the last pics you posted, you have the H S upside down. The plates go on top of the H S. Double check that please.
Forum: RV-12/RV-12iS 01-21-2019, 10:40 AM
Replies: 76
Views: 20,835
Posted By JBPILOT
Yet another option - -

I like the tailpipe expander method, but have also done the following.

Put a strong 'C' clamp on the top of each spar INSIDE and use a tie down ratchet to pull them together. Very fast and easy.
Forum: RV-12/RV-12iS 01-21-2019, 06:33 AM
Replies: 23
Views: 4,362
Posted By JBPILOT
Hey Rob - -

Can you take another pic with the plate as in first pic, but much further away from it. Need to see the entire H S if possible. Thanks.
Forum: RV-12/RV-12iS 01-08-2019, 07:51 AM
Replies: 8
Views: 2,381
Posted By JBPILOT
This is a lockable control cable

https://www.oreillyauto.com/detail/b/dorman-help--4422/agriculture-hd-parts---accessories-19818/agricultural---construction-20126/hardware---assortments-20140/cables---cable-stops-17559/d4841813c3ce/d...
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