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Search: Posts Made By: John-G
Forum: RV-12/RV-12iS Today, 09:12 PM
Replies: 204
Views: 38,363
Posted By John-G
Brad, Your experience sounds to me as though it...

Brad,

Your experience sounds to me as though it may very well have been a heat related vapor lock issue. In our area, the summer blend fuel has a mandated RVP (Reid Vapor Pressure) not to exceed 9...
Forum: RV-12/RV-12iS Today, 09:40 AM
Replies: 3
Views: 199
Posted By John-G
Sorry to hear that ... that was such a nice area...

Sorry to hear that ... that was such a nice area to fly and the flight instruction was top notch.
Forum: RV-12/RV-12iS Today, 08:31 AM
Replies: 3
Views: 199
Posted By John-G
Niner- I live in Ohio and a few years back when...

Niner-

I live in Ohio and a few years back when I needed to get transition training for insurance requirements (and to also get current) the closest flight school with an RV-12 was in Wisconsin....
Forum: RV-12/RV-12iS 05-14-2020, 07:43 AM
Replies: 9
Views: 798
Posted By John-G
Jay- I'm curious .... are both your left & right...

Jay-

I'm curious .... are both your left & right cylinder heat temps reading high ... or just one of the two? Prior to engine start, are both the CHT readings displayed about the same?

If only one...
Forum: RV-12/RV-12iS 05-12-2020, 11:54 AM
Replies: 8
Views: 805
Posted By John-G
Niner- There is no real adjustment per se ......

Niner-

There is no real adjustment per se ... however, that said, there is some aft movement (but not that much) that can be created when installing the springs.

To the best of my knowledge,...
Forum: RV-12/RV-12iS 05-12-2020, 08:32 AM
Replies: 8
Views: 805
Posted By John-G
Niner- Here is a link to a thread containing...

Niner-

Here is a link to a thread containing some photos you may find helpful. I know there was another set of photos somewhere that were much more detailed but I had the link to this one...
Forum: RV-12/RV-12iS 05-12-2020, 07:07 AM
Replies: 8
Views: 663
Posted By John-G
Lon- Thanks ever so much for reporting back ......

Lon-

Thanks ever so much for reporting back ... good to hear the FOBO sensors do fit without having clearance issues.

Guess I have an order to place.

Thanks again ... happy flying!
Forum: RV-12/RV-12iS 05-07-2020, 10:17 AM
Replies: 8
Views: 663
Posted By John-G
Need measurement of clearance between RV-12's main gear wheel and the air valve stem

This request only pertains to RV-12 Matco main gear wheels.

I'm looking into possibly purchasing a bluetooth trike tire pressure monitoring system manufactured by FOB. Below is a link to the...
Forum: RV-12/RV-12iS 05-07-2020, 09:47 AM
Replies: 26
Views: 2,109
Posted By John-G
Thanks for all the valuable input guys. Guess I...

Thanks for all the valuable input guys. Guess I will pass on the Camloc access door.

I was hoping for a better way to monitor tire pressure because in addition to wheel pants, I also added...
Forum: RV-12/RV-12iS 05-07-2020, 08:32 AM
Replies: 8
Views: 1,103
Posted By John-G
I remember reading a thread last year pertaining...

I remember reading a thread last year pertaining to vibrations at reduced throttle settings. If memory serves me correctly, I believe the vibrations were determined to be coming from the gear...
Forum: RV-12/RV-12iS 05-06-2020, 10:10 AM
Replies: 1
Views: 408
Posted By John-G
SB 18-03-06 Throttle return spring replacement tip

I was going through some photos and discovered I forgot to post about a slick trick I used to install the new throttle lever return springs.

Last fall during my condition inspection I completed...
Forum: RV-12/RV-12iS 05-05-2020, 07:29 AM
Replies: 26
Views: 2,109
Posted By John-G
Camloc access door for wheel pants

I'm wondering if anybody has fitted the Camloc access doors shown below on their RV-12 wheel pants to facilitate easier tire pressure monitoring? If so, are you pleased with the product? Any pitfalls...
Forum: RV-12/RV-12iS 05-03-2020, 07:53 AM
Replies: 6
Views: 748
Posted By John-G
Rob- Ask around to find out if any of your...

Rob-

Ask around to find out if any of your friends have any really long hemostats. I picked up a big pair long ago that have a really long nose and have used them quite often. I have not done what...
Forum: RV-12/RV-12iS 04-30-2020, 10:06 AM
Replies: 9
Views: 1,676
Posted By John-G
I could be wrong, but I suspect one strong...

I could be wrong, but I suspect one strong possibility may be ... a fair number of builders elected to shift gears in the middle of the build and assemble a second fuselage so they can have the...
Forum: RV-12/RV-12iS 04-21-2020, 05:45 AM
Replies: 7
Views: 1,367
Posted By John-G
David, Congratulations on getting your bird in...

David,

Congratulations on getting your bird in the air!!!

As for the heavy wing .... I too had a heavy wing and easily solved it before getting draconian with the aft edge of the flaperons. Based...
Forum: RV-12/RV-12iS 04-18-2020, 09:13 PM
Replies: 2
Views: 670
Posted By John-G
I have found it necessary to flex the lens a...

I have found it necessary to flex the lens a tad when inserting the lens into the wing.
Forum: Safety 04-09-2020, 07:53 AM
Replies: 53
Views: 12,633
Posted By John-G
Felix, Sorry to hear you still don't have your...

Felix,

Sorry to hear you still don't have your issue solved yet.

In your first post you mentioned you are using 93 auto fuel. Of course, this time of the year it will be a winter blend ... and you...
Forum: RV-12/RV-12iS 03-01-2020, 09:47 PM
Replies: 7
Views: 955
Posted By John-G
Jeff ... Curious... Do you have the static...

Jeff ...

Curious... Do you have the static suppressor installed inline between the antenna cable and the antenna?

Also wondering if the antenna touches the rear window and possibly picking ...
Forum: RV-12/RV-12iS 02-21-2020, 06:06 AM
Replies: 167
Views: 26,436
Posted By John-G
I too had second thoughts about drilling holes...

I too had second thoughts about drilling holes into the nose gear tubing ... so I decided to not install the nose gear leg fairing at all. Any potential speed gains I may lose by not installing the...
Forum: Safety 02-17-2020, 08:13 AM
Replies: 53
Views: 12,633
Posted By John-G
Felix, If the right side EGT plummeted at the...

Felix,

If the right side EGT plummeted at the time of your incident, for sure the right side of the engine went rich.

There are only a few things that can contribute to one carb suddenly going rich...
Forum: RV General Discussion/News 02-16-2020, 10:01 PM
Replies: 1,381
Views: 334,402
Posted By John-G
Looks like the pedal extensions printed nicely...

Looks like the pedal extensions printed nicely Steve.
Forum: RV-12/RV-12iS 02-12-2020, 06:23 PM
Replies: 2
Views: 768
Posted By John-G
Ted, Have you viewed any of the numerous...

Ted,

Have you viewed any of the numerous training videos Dynon has made for the SkyView?

Links available at the Dynon site or on YouTube.

I found them to be an excellent resource.
Forum: Safety 02-12-2020, 10:07 AM
Replies: 53
Views: 12,633
Posted By John-G
Felix, Very early in my flight testing I had a...

Felix,

Very early in my flight testing I had a similar incident with my 912ULS powered RV-12. In my case, at around 300 feet during a 65-70 knot climb out, the RPM's went instantly from 5,200 to...
Forum: RV-12/RV-12iS 02-07-2020, 08:06 AM
Replies: 57
Views: 8,555
Posted By John-G
Lon, Joe Gores pointed out the flaw in my...

Lon,

Joe Gores pointed out the flaw in my suggestion of reversing the tow bar and pulling the aircraft into your hangar by using a rope or cable tied onto the tow bar. Should the tail begin to move...
Forum: RV-12/RV-12iS 01-27-2020, 07:43 AM
Replies: 11
Views: 1,178
Posted By John-G
My bushing, originally set in blue Loctite, came...

My bushing, originally set in blue Loctite, came lose after only a few hours on the engine. At the time, I installed a new bushing using Proseal as the adhesive ... so far it has held up quite well.
Forum: RV-12/RV-12iS 01-14-2020, 10:33 PM
Replies: 57
Views: 8,555
Posted By John-G
reverse the tow bar

Lon-

Was reading this thread earlier today and it got me thinking of how I would try to accomplish backing my RV-12 into a hangar while fighting a slight uphill grade without spending a ton of money...
Forum: Fiberglass 01-09-2020, 09:44 AM
Replies: 11
Views: 2,299
Posted By John-G
Don't know if this good technique or not ... I...

Don't know if this good technique or not ... I cut up a 16 oz water bottle so I have a 2" plastic "scoop" that I leave in the bag. Scoop some microballs into the bottle bottom not overfilling and...
Forum: RV Ongoing Maintenance Issues 01-09-2020, 09:17 AM
Replies: 22
Views: 2,183
Posted By John-G
I too went with a synthetic ATF fluid ... except...

I too went with a synthetic ATF fluid ... except I chose Amsoil multi-vehicle synthetic ATF because it has a slightly higher flash point of 453. Have been using it for three years ... without any...
Forum: RV General Discussion/News 01-09-2020, 08:13 AM
Replies: 20
Views: 2,122
Posted By John-G
Ditto what Sam said. About a week prior to my...

Ditto what Sam said. About a week prior to my interview with the FSDO, sent the inspector a link to my builder's blog. The day of the "interview" I showed up with two thick binders .... one being...
Forum: RV-12/RV-12iS 01-08-2020, 08:34 AM
Replies: 19
Views: 5,676
Posted By John-G
For those considering adding a second landing...

For those considering adding a second landing light in the left wing after phase one is completed on their E-LSA RV-12 so they can have the benefits of wig-wag ... it is doable. Running the wires...
Forum: RV General Discussion/News 12-30-2019, 06:44 PM
Replies: 71
Views: 6,960
Posted By John-G
Just got done setting up a $135 remote GSM relay...

Just got done setting up a $135 remote GSM relay switch for myself. I went with a Kiao Time Model KT-G3-AU (which I can't find a link to a good online photo). The switch has two separate...
Forum: RV Building Tips/Techniques 12-28-2019, 01:11 PM
Replies: 6
Views: 850
Posted By John-G
Vinyl tubing standoff

I've used a piece of vinyl tubing and a wire tie wrapped back on itself as a standoff from time to time with great success. Sometimes you get lucky and can use one of Van's tooling holes to your...
Forum: RV-12/RV-12iS 12-19-2019, 06:31 AM
Replies: 48
Views: 10,551
Posted By John-G
Major Tom - Below are a couple of links to my...

Major Tom -

Below are a couple of links to my blog that show the micro switch. As you will read I broke one by stepping on it accidentally and if memory serves me I just ordered the replacement from...
Forum: COMM 12-02-2019, 07:12 AM
Replies: 8
Views: 801
Posted By John-G
Jim- As you have apparently discovered ... not...

Jim-

As you have apparently discovered ... not all USB charging ports are created equally. Some units generate way more electrical noise than others. I think the root of the problem is if a...
Forum: RV-12/RV-12iS 11-24-2019, 07:58 AM
Replies: 204
Views: 38,363
Posted By John-G
I replaced my good working floats with the new...

I replaced my good working floats with the new ones (with the shorter brass sleeve) when they were first made available in the hopes I could forget about checking the floats regularly and only do it...
Forum: RV-12/RV-12iS 11-24-2019, 07:31 AM
Replies: 3
Views: 909
Posted By John-G
At the time I installed my AN8 oil lines to the...

At the time I installed my AN8 oil lines to the oil tank, the Rotax manual stated the torque was 18.8 foot pounds. I used that value for all the AN8 fittings and have not had any leaks or...
Forum: RV-12/RV-12iS 11-14-2019, 08:17 AM
Replies: 9
Views: 3,158
Posted By John-G
Sclookout - Apparently roughly three years ago...

Sclookout -

Apparently roughly three years ago or so Gesipa changed the part numbers for their product line of PolyGrip multigrip rivets and also changed the grip ranges.

You will want to visit...
Forum: RV-12/RV-12iS 11-04-2019, 08:04 AM
Replies: 7
Views: 1,713
Posted By John-G
Dave - Congratulations on your progress ......

Dave -

Congratulations on your progress ... looks like you will be in the air very soon.

Wishing a you a fun and exciting ... but uneventful first flight.

Happy Flying,
Forum: RV-12/RV-12iS 11-03-2019, 06:47 AM
Replies: 16
Views: 3,139
Posted By John-G
Backcountry- Very early on during my initial...

Backcountry-

Very early on during my initial flight testing (something like the third flight or so with fall temps like we are having now) I had something similar happen during takeoff. I was...
Forum: RV-12/RV-12iS 10-12-2019, 08:08 AM
Replies: 25
Views: 8,266
Posted By John-G
Jim Because the CarbMate uses one carb as a...

Jim

Because the CarbMate uses one carb as a reference, the user does not actually know what the actual vacuum reading of each carb really is (which is usually not an issue). However, if there is a...
Forum: RV-12/RV-12iS 10-10-2019, 06:49 AM
Replies: 7
Views: 1,411
Posted By John-G
Ed- I too have the version of the #2 exhaust...

Ed-

I too have the version of the #2 exhaust pipe that requires replacement. I've had the new replacement pipe for weeks and have just been waiting to perform the swap when doing an oil change .......
Forum: RV-12/RV-12iS 10-08-2019, 10:06 AM
Replies: 11
Views: 2,322
Posted By John-G
David- Yes, .... The Rotax 912ULS has a slip...

David-

Yes, .... The Rotax 912ULS has a slip clutch consisting of stacked plates very akin to a wet motorcycle clutch ... with the exception there is no mechanical release. The stacked plates are...
Forum: ADS-B 10-03-2019, 08:38 PM
Replies: 4
Views: 1,005
Posted By John-G
Niner- The ADSB antenna is mounted on the bottom...

Niner-

The ADSB antenna is mounted on the bottom of the RV-12 fuselage. Below is a link to section 53 which covers the instillation of the ADSB antenna. The info covers instillation of the older 470...
Forum: RV-12/RV-12iS 09-29-2019, 07:43 AM
Replies: 2
Views: 751
Posted By John-G
Edward, The following is directly from the Rotax...

Edward,

The following is directly from the Rotax 912 heavy maintenance manual.

Trigger coil assignment (on the 912 Series)
Trigger coil A1/2 serves the top spark plug of cylinder 1 and 2
Trigger...
Forum: RV-12/RV-12iS 09-26-2019, 10:21 AM
Replies: 2
Views: 535
Posted By John-G
David- Not at the hangar to make a measurement...

David-

Not at the hangar to make a measurement of the stabilator cable directly for you, but almost certain the cable is 1/8". However, I can say the Burroughs BT-33-75D cable tension gauge will do...
Forum: RV-12/RV-12iS 09-25-2019, 06:47 AM
Replies: 3
Views: 844
Posted By John-G
Ted, Good advice given by others. I would like...

Ted,

Good advice given by others.

I would like to add a couple of thoughts.

First ... I found if one builds two 25" sawhorses per the plans it will support the fuselage just fine, however it will...
Forum: RV-12/RV-12iS 09-13-2019, 03:16 PM
Replies: 4
Views: 697
Posted By John-G
Rich- During the build of my RV-12 without the...

Rich-

During the build of my RV-12 without the fuel tank installed, I pressurized fuel lines between the firewall and the tank using an air compressor to 55" of water (approximately 2 psi) using a...
Forum: RV-12/RV-12iS 09-12-2019, 02:44 PM
Replies: 25
Views: 7,088
Posted By John-G
Rv3flyer- Before getting draconian with the aft...

Rv3flyer-

Before getting draconian with the aft edge of the flaperons first take a look at the cantilevered portion of the wing skins that extend aft of the wing's rear spar.

Use a straight edge...
Forum: RV-12/RV-12iS 09-08-2019, 10:06 AM
Replies: 21
Views: 3,846
Posted By John-G
Wheel pants .. check. Easy access to valve stem .. fail.

I too have seen speed increases after recently installing wheel pants and gear leg /intersection fairings on my RV-12. My airspeed increases appear to be in line with those previously mentioned.

But...
Forum: RV-12/RV-12iS 09-07-2019, 07:18 AM
Replies: 9
Views: 1,024
Posted By John-G
Regarding the pulled rivets used on the RV-12...

Regarding the pulled rivets used on the RV-12 .... actually, there are some exceptions to the above statement. In particular, one that immediately comes to mind is the use of CCR264SS-3-2 rivets to...
Forum: RV-12/RV-12iS 09-06-2019, 06:57 AM
Replies: 9
Views: 1,024
Posted By John-G
Subpar- It has been a while but if memory serves...

Subpar-

It has been a while but if memory serves me correctly, I believe the AACQ-4-4 rivet has a 120° angle.

You could easily verify that by countersinking a piece of scrap metal using a 120°...
Forum: RV-12/RV-12iS 09-02-2019, 02:26 PM
Replies: 10
Views: 1,672
Posted By John-G
Mike, Just a few thoughts. I suppose before...

Mike,

Just a few thoughts.

I suppose before digging in and troubleshooting in earnest, it would be an easy matter to swap the temperature probes and determine if the right probe itself is really...
Forum: RV Building Tips/Techniques 08-17-2019, 02:20 PM
Replies: 23
Views: 2,233
Posted By John-G
TB- I built two workbenches 6'x3' and found they...

TB-

I built two workbenches 6'x3' and found they worked nicely for my RV-12 build. Built a third smaller workbench not quite as deep dedicated to power tools ... Scotch-Brite wheel station, drill...
Forum: RV General Discussion/News 08-17-2019, 06:14 AM
Replies: 1
Views: 494
Posted By John-G
Dabney- Now that you have verified the sensors...

Dabney-

Now that you have verified the sensors are not wonky, I would look into the wiring next.

Suggest you make a test wire with a fast on connector for the sensor end and crimp a new DB...
Forum: RV-12/RV-12iS 08-14-2019, 01:01 PM
Replies: 4
Views: 1,167
Posted By John-G
Roy, The fit will become even tighter if your...

Roy,

The fit will become even tighter if your painter puts a thick layer of paint on each of the horns where they meet. I had mine painted but told the painter to go easy where the two horns mate....
Forum: RV-12/RV-12iS 08-14-2019, 12:54 PM
Replies: 9
Views: 1,959
Posted By John-G
Ed - Depends ... I did not Proseal the rear...

Ed -

Depends ... I did not Proseal the rear window to the turtle deck because my RV-12 has the old flat Lexan material that is under constant stress from the bends. I figure eventually it will begin...
Forum: RV-12/RV-12iS 08-11-2019, 07:23 AM
Replies: 6
Views: 2,085
Posted By John-G
Oophda - The standard landing light supplied by...

Oophda -

The standard landing light supplied by Van's for the RV-12 is made by Aeroleds. The pulse feature is built into the Aeroleds light NOT THE SWITCH. If power is applied to the power wire on...
Forum: RV-12/RV-12iS 08-09-2019, 08:06 AM
Replies: 2
Views: 560
Posted By John-G
John Have a look at post 43 in the following...

John
Have a look at post 43 in the following thread. I think it has the info you are looking...
Forum: RV General Discussion/News 07-18-2019, 04:47 PM
Replies: 9
Views: 1,029
Posted By John-G
I've been using Loctite LB771 Nickel Anti-Seize...

I've been using Loctite LB771 Nickel Anti-Seize which is rated to 2,400 degrees on the exhaust joints of my RV-12. Sounds like it is similar to the Permatex product previously mentioned.

The main...
Forum: RV-12/RV-12iS 06-30-2019, 07:32 PM
Replies: 4
Views: 1,276
Posted By John-G
Don- Could not agree any more with Larry ......

Don-

Could not agree any more with Larry ... wiring the the RV-12 instrument panel is, for the most part, a snap in that virtually everything is connectorized. It is NOT a daunting task ... just...
Forum: RV-12/RV-12iS 06-27-2019, 07:52 AM
Replies: 21
Views: 4,603
Posted By John-G
Shimuneka, My RV-12 build was the second...

Shimuneka,

My RV-12 build was the second airplane I was involved with building. During the first build, it quickly became apparent having wheels on all the work benches, tables and parts racks is...
Forum: RV-12/RV-12iS 06-27-2019, 07:03 AM
Replies: 3
Views: 1,277
Posted By John-G
try waxed cord

I tried using double sticky tape but one of the backing strips fell off ... so I decided to try a different tact which worked out really well.

Find some waxed cord (it can easily be found at arts...
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