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Search: Posts Made By: John-G
Forum: COMM 12-02-2019, 08:12 AM
Replies: 8
Views: 463
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, 08:58 AM
Replies: 178
Views: 27,685
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, 08:31 AM
Replies: 3
Views: 602
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, 09:17 AM
Replies: 9
Views: 2,916
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, 09:04 AM
Replies: 7
Views: 1,239
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, 07:47 AM
Replies: 16
Views: 2,427
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, 09:08 AM
Replies: 25
Views: 7,361
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, 07:49 AM
Replies: 7
Views: 1,027
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, 11:06 AM
Replies: 11
Views: 1,751
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, 09:38 PM
Replies: 4
Views: 569
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, 08:43 AM
Replies: 2
Views: 642
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, 11:21 AM
Replies: 2
Views: 436
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, 07:47 AM
Replies: 3
Views: 688
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, 04:16 PM
Replies: 4
Views: 587
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, 03:44 PM
Replies: 25
Views: 6,407
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, 11:06 AM
Replies: 21
Views: 2,607
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, 08:18 AM
Replies: 9
Views: 800
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, 07:57 AM
Replies: 9
Views: 800
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, 03:26 PM
Replies: 10
Views: 1,489
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, 03:20 PM
Replies: 23
Views: 1,722
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, 07:14 AM
Replies: 1
Views: 408
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, 02:01 PM
Replies: 4
Views: 930
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, 01:54 PM
Replies: 9
Views: 1,523
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, 08:23 AM
Replies: 6
Views: 1,895
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, 09:06 AM
Replies: 2
Views: 476
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, 05:47 PM
Replies: 9
Views: 798
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, 08:32 PM
Replies: 4
Views: 1,020
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, 08:52 AM
Replies: 21
Views: 3,885
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, 08:03 AM
Replies: 3
Views: 1,066
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...
Forum: RV-12/RV-12iS 06-14-2019, 07:15 AM
Replies: 5
Views: 1,075
Posted By John-G
I painted mine using JetFlex ... the canopy deck...

I painted mine using JetFlex ... the canopy deck matches my interior color.
Forum: Fuel Injection Systems 06-04-2019, 09:31 AM
Replies: 2
Views: 395
Posted By John-G
Ross - Do you know if Andrew needed to make any...

Ross -

Do you know if Andrew needed to make any modifications to the RV-12's upper cowling to accommodate the EFI?

This thread will be one to keep a close eye on for those of us not thrilled with...
Forum: RV-12/RV-12iS 05-27-2019, 12:55 PM
Replies: 20
Views: 4,749
Posted By John-G
When I received my powerplant kit from Van's in...

When I received my powerplant kit from Van's in June of 2015, I received one of the very first kits with the revised exhaust system that moved the muffler a little further aft. So if the powerplant...
Forum: RV-12/RV-12iS 05-24-2019, 07:26 AM
Replies: 178
Views: 27,685
Posted By John-G
Doug - To answer your question. No ... I have...

Doug -

To answer your question. No ... I have not tested for CO probably not a bad idea to do so.

That said, I have flown very slow steep angles of attack for extended periods of time and have...
Forum: RV-12/RV-12iS 05-20-2019, 07:40 AM
Replies: 178
Views: 27,685
Posted By John-G
Jim - I've had this symptom before this time of...

Jim - I've had this symptom before this time of year ..... even with new floats. I think some of it could be using winter blended auto fuel when the temperatures are becoming summer like. As an...
Forum: RV-12/RV-12iS 05-20-2019, 06:55 AM
Replies: 2
Views: 771
Posted By John-G
Keith - Not sure if the gascolator used on the...

Keith -

Not sure if the gascolator used on the RV-12 (blue anodized aluminum) is the same unit you have .... but if it is, I know Van's stocks the O ring and the fine mesh screen because I've...
Forum: RV-12/RV-12iS 05-14-2019, 07:47 AM
Replies: 8
Views: 1,672
Posted By John-G
May just be something as simple as an unbalanced...

May just be something as simple as an unbalanced nose wheel rotating during flight.
Forum: RV-12/RV-12iS 05-14-2019, 07:42 AM
Replies: 6
Views: 1,224
Posted By John-G
Jim- Nice job! I like the stand design a...

Jim-

Nice job! I like the stand design a lot!

Only thing I would consider adding is a couple of pins that would prevent the stand from sliding off the 4x4 bases should there be a side load from...
Forum: RV-12/RV-12iS 05-12-2019, 04:32 PM
Replies: 11
Views: 1,779
Posted By John-G
Steve - To make the rivets on the canopy deck a...

Steve -

To make the rivets on the canopy deck a non-factor, I place a thick piece of flat aluminum directly on the canopy deck then set my level on the flat aluminum. This allows my level to clear...
Forum: RV-12/RV-12iS 05-02-2019, 10:40 AM
Replies: 6
Views: 1,081
Posted By John-G
I don't have dual SkyViews ... but looking at...

I don't have dual SkyViews ... but looking at your numbers, I suspect that those readings are typical for a dual SkyView instillation on a Rotax 912 ( which has limited current capabilities from the...
Forum: RV-12/RV-12iS 05-02-2019, 10:32 AM
Replies: 6
Views: 1,033
Posted By John-G
Tom, Thanks for pointing that out. My SH...

Tom, Thanks for pointing that out. My SH regulator is working so well I have not needed to research regulators any more .... did not know there were newer models from SH. After a fast look at the SH...
Forum: RV-12/RV-12iS 05-02-2019, 08:40 AM
Replies: 6
Views: 1,033
Posted By John-G
Tom - There are two versions of the Silent...

Tom -

There are two versions of the Silent Hektik regulator that are commonly used on Rotax installations. The older style is the F4112 and it has a steady non-stepping output that is below 14...
Forum: Primers 04-28-2019, 09:24 AM
Replies: 6
Views: 768
Posted By John-G
Mike- It has not been mentioned yet so I'll put...

Mike-

It has not been mentioned yet so I'll put this out there for your consideration. It is possible to place unused portions of Akzo in the freezer for short term later use ... ideally within a...
Forum: RV-12/RV-12iS 04-28-2019, 08:07 AM
Replies: 11
Views: 1,434
Posted By John-G
Mike - Were you burning mogas??? If so, perhaps...

Mike -

Were you burning mogas??? If so, perhaps a little experimenting would shed light on the issue. Assuming you are running mogas ... it would be interesting if you can repeat the high ff...
Forum: RV-12/RV-12iS 04-26-2019, 08:25 AM
Replies: 10
Views: 1,587
Posted By John-G
Jeff- I sent you a PM ... I can give you 1K...

Jeff-

I sent you a PM ... I can give you 1K LP4-3 rivets free you pay the USPS flat rate on the small box. Send me you phone number and we can work out the details.
Forum: Primers 04-26-2019, 08:20 AM
Replies: 13
Views: 1,347
Posted By John-G
Ben- There is a company out of Chicago called...

Ben-

There is a company out of Chicago called Sanchem that makes two products that are conversion coatings much the same as Alodine. The products are much more environmentally friendly than Alodine,...
Forum: Primers 04-24-2019, 09:28 AM
Replies: 37
Views: 1,881
Posted By John-G
I only washed just few parts with Dawn. I decided...

I only washed just few parts with Dawn. I decided to take another tact which worked for the Akzo primer I used.

While handling parts I tried, for the most part, to make it a point to wear gloves...
Forum: RV-12/RV-12iS 04-24-2019, 07:51 AM
Replies: 14
Views: 1,333
Posted By John-G
If you don't want to run a wire all the way to...

If you don't want to run a wire all the way to the battery, consider this option. Pin 14 on the connector coming out of the back of the AV-50001 Switch & Fuse Module is a spare ... it has +12 volts...
Forum: RV-12/RV-12iS 04-19-2019, 08:33 AM
Replies: 5
Views: 924
Posted By John-G
The Van's tow bar will lock the rudder pedals...

The Van's tow bar will lock the rudder pedals .... but I don't remember seeing a device for the RV-12 from Van's that will lock the control column in addition to the rudder pedals.

If there is a...
Forum: RV-12/RV-12iS 04-17-2019, 09:49 AM
Replies: 24
Views: 5,953
Posted By John-G
Expiration dates can be a funny thing. Do the...

Expiration dates can be a funny thing. Do the ADDITIVES in synthetic oil break down over time, I think the answer is clearly, they do ... which is why Shell marks the bottles with an expiration...
Forum: RV-12/RV-12iS 04-17-2019, 08:03 AM
Replies: 4
Views: 760
Posted By John-G
Jim - I powder coated my panel and it adds quite...

Jim -

I powder coated my panel and it adds quite a bit of material.

I did not countersink my panel because I like the look of black button head screws on the panel, so I can't say from personal...
Forum: RV-12/RV-12iS 04-16-2019, 08:36 AM
Replies: 7
Views: 1,038
Posted By John-G
I riveted the rear portion of the side skins but...

I riveted the rear portion of the side skins but left enough unriveted that the skin could be pulled back enough to allow access for installing the rudder pedals without distorting the skins. It...
Forum: Alternative Engines 04-14-2019, 08:28 AM
Replies: 462
Views: 68,894
Posted By John-G
Charlie - The LP4-3 rivets on my RV-12 are...

Charlie - The LP4-3 rivets on my RV-12 are manufactured by Gesipa and are the PolyGrip - MultiGrip series. According to factory specifications from the Gesipa catalog .... Shear =162 lbs. Tensile =...
Forum: RV-12/RV-12iS 04-13-2019, 08:37 PM
Replies: 13
Views: 1,907
Posted By John-G
Jerre - +1 for removing the access plate and...

Jerre -

+1 for removing the access plate and doing the repair from inside the tank. You will feel better knowing it is not a patch from outside the tank.

You may want to consider the careful use of...
Forum: RV-12/RV-12iS 04-05-2019, 10:27 AM
Replies: 2
Views: 915
Posted By John-G
Bob, Below is a link to a video on how to use...

Bob,

Below is a link to a video on how to use the the cube.

https://www.youtube.com/watch?v=sw1WaVQCZJY

I would suggest you follow the instructions found in Section 47 page 7 of the assembly...
Forum: RV-12/RV-12iS 03-21-2019, 08:42 AM
Replies: 13
Views: 2,688
Posted By John-G
regulator alternative mounting location

I decided to opt for an alternative mounting location for my Silent Hektik voltage regulator. My RV-12 has the old style cowling with the ducting going to the coolant regulator mounted on the...
Forum: RV-12/RV-12iS 02-25-2019, 08:09 AM
Replies: 3
Views: 702
Posted By John-G
Reilly, From what I've read the Lexan will...

Reilly,

From what I've read the Lexan will likely eventually need to be replaced at some point in the future ... no matter how careful one is about not getting fuel or chemicals on it. The Lexan...
Forum: Painting your RV 02-20-2019, 09:31 AM
Replies: 4
Views: 632
Posted By John-G
Ken, When beginning my airplane build, I decided...

Ken,

When beginning my airplane build, I decided early on I would not attempt painting the exterior of the aircraft myself. However, I did want to prime all the parts and also spray the...
Forum: RV-12/RV-12iS 02-10-2019, 08:02 AM
Replies: 22
Views: 5,376
Posted By John-G
Thanks for the review Jim .... that opener is on...

Thanks for the review Jim .... that opener is on my short list of goodies to buy. Glad to hear it works well.

Happy flying,
Forum: RV-12/RV-12iS 01-25-2019, 11:35 AM
Replies: 14
Views: 4,570
Posted By John-G
To answer the question asked by the OP ... Van's...

To answer the question asked by the OP ... Van's sells the binder for $11. The part number is Z0 Binder 11x17 Gray. I did try to find the binder covers locally and also on the Internet, but no joy...
Forum: Primers 01-25-2019, 09:40 AM
Replies: 5
Views: 596
Posted By John-G
I too found that my Part A was getting thicker as...

I too found that my Part A was getting thicker as it was slowly being used up. There was usually a little goop on the bottom of the can, but I always mixed the paint well using a stir stick that has...
Forum: Electrical Systems 01-13-2019, 09:15 AM
Replies: 5
Views: 606
Posted By John-G
Try a filter capacitor

rvmv-

May not hurt to try installing a filter capacitor close to the fuel pump and see if that helps with the noise issue you are experiencing.

If you are running a 12 volt electrical system try...
Forum: RV-12/RV-12iS 01-05-2019, 01:39 PM
Replies: 9
Views: 1,364
Posted By John-G
Jim - Good find on on the hose ... thanks for...

Jim -

Good find on on the hose ... thanks for posting the link. I was about to begin looking for some reinforced hose to replace the 7 mm cloth wrapped fuel line I used (which is still just fine...
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