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Search: Posts Made By: DHeal
Forum: RV-12/RV-12iS 04-16-2019, 10:51 AM
Replies: 24
Views: 4,898
Posted By DHeal
Aeroshell Sport Plus 4 oil was reformulated a bit...

Aeroshell Sport Plus 4 oil was reformulated a bit about a year or two ago. At that time, Aeroshell/ROTAX said that older remaining stock could be used until the newly-reformulated oil was available....
Forum: RV-12/RV-12iS 04-13-2019, 06:35 PM
Replies: 14
Views: 1,176
Posted By DHeal
With the newly-built tank dry of fuel and on your...

With the newly-built tank dry of fuel and on your workbench, you will never have a better time to correctly address your leaks. Remove the forward access panel* and fix the leaks from within. Like a...
Forum: RV-12/RV-12iS 04-08-2019, 12:20 PM
Replies: 15
Views: 1,154
Posted By DHeal
As Mike noted above, during the course of a...

As Mike noted above, during the course of a normal flight (RV-12 w/ 912ULS) the ammeter will likely show you "plus" and "minus" readings. Typically the "minus" readings occur at low RPM settings...
Forum: RV-12/RV-12iS 04-02-2019, 08:07 AM
Replies: 13
Views: 982
Posted By DHeal
Bill -- We are talking about an RV-12 here not an...

Bill -- We are talking about an RV-12 here not an RV-7 type of aircraft. The RV-12 has a bypass/return form of fuel system with only one fuel flow sensor so the stock K Factor needs to be adjusted...
Forum: RV-12/RV-12iS 03-31-2019, 08:16 PM
Replies: 13
Views: 982
Posted By DHeal
As one point of reference, I have been using...

As one point of reference, I have been using 107,510 as my K-factor for the past 300+ hours. This value tracks well with my actual fuel use (912ULS) -- usually within a tenth of a gallon or so. My...
Forum: RV-12/RV-12iS 03-26-2019, 04:02 PM
Replies: 50
Views: 3,219
Posted By DHeal
You are supposed to punch out the steel mandrel...

You are supposed to punch out the steel mandrel first, before drilling out the rivet. Get a cheap automatic center punch and grind the center pin down to a diameter that will fit the pop-rivet's...
Forum: RV-12/RV-12iS 03-24-2019, 08:54 PM
Replies: 10
Views: 1,110
Posted By DHeal
At @ 68 degrees F outside temp my RV-12 Rotax 912...

At @ 68 degrees F outside temp my RV-12 Rotax 912 ULS engine warms up past 120 degrees OT very nicely. You are allowed to run the engine up to 2,500 rpms during the pre-120 degree OT warm-up period....
Forum: RV-12/RV-12iS 03-20-2019, 11:57 AM
Replies: 10
Views: 1,362
Posted By DHeal
Another data point: My first "firewall-shelf...

Another data point: My first "firewall-shelf mounted with blast tube" Ducati RR failed at @ one-year-old and 133 Hobbs hours -- IMHO the failure was caused by heat, vibration, and poor internal...
Forum: RV-12/RV-12iS 03-19-2019, 03:37 PM
Replies: 50
Views: 3,219
Posted By DHeal
"On page 6-04 step 3 it says to machine...

"On page 6-04 step 3 it says to machine countersink the four #40 holes in VS-1212-B-R & -L. However, the countersink cage diameter is too big to allow it to reach the 2 holes closest to the flange....
Forum: RV-12/RV-12iS 03-19-2019, 08:32 AM
Replies: 3
Views: 1,501
Posted By DHeal
Its been a while since I installed my pitot line...

Its been a while since I installed my pitot line but as I recall my Serial Number 120496 kit was manufactured during the period of transition between the original Dynon 180 and the then-new Skyview. ...
Forum: RV-12/RV-12iS 03-17-2019, 07:29 PM
Replies: 6
Views: 841
Posted By DHeal
The two-piece floor mod allows you to better...

The two-piece floor mod allows you to better inspect and lubricate the flaperon actuator mechanism and its associated rod end bearings, fixed bearings, actuation tubes, etc. In addition, you may...
Forum: RV-12/RV-12iS 03-14-2019, 09:32 PM
Replies: 3
Views: 890
Posted By DHeal
Since I built my RV-12 "classic" fuel tank some...

Since I built my RV-12 "classic" fuel tank some six years ago I am afraid I can't comment on the specifics of your RV-12 iS tank. However, here are a few thoughts from my experience building my tank...
Forum: RV-12/RV-12iS 03-14-2019, 04:13 PM
Replies: 6
Views: 841
Posted By DHeal
Absolutely! The two-piece rear bulkhead and rear...

Absolutely! The two-piece rear bulkhead and rear floor panel greatly facilitate your inspection of the tail cone area, its contents, and the flaperon actuator components.
Forum: Safety 03-12-2019, 08:25 PM
Replies: 22
Views: 2,080
Posted By DHeal
With regard to Flight Following, be aware that it...

With regard to Flight Following, be aware that it is imperative that you formally terminate FF with the controller (or ATCT if applicable) when you no longer require or desire FF services. If you...
Forum: RV-12/RV-12iS 03-12-2019, 03:13 PM
Replies: 4
Views: 716
Posted By DHeal
There are physical limit stops for the up and...

There are physical limit stops for the up and down motion of the stab located on the stab spar/pivot point (similar for the rudder and flaperons). It is important that the limits of motion for the...
Forum: RV-12/RV-12iS 03-09-2019, 07:26 PM
Replies: 4
Views: 805
Posted By DHeal
1/32" is a good target. "Touching" is not so...

1/32" is a good target. "Touching" is not so good since it may result in scratched paint and negative cosmetics -- if that is important to you. Also keep in mind that paint thickness will take up...
Forum: RV General Discussion/News 03-09-2019, 08:42 AM
Replies: 8
Views: 650
Posted By DHeal
Pushing an airplane with a free-swiveling nose...

Pushing an airplane with a free-swiveling nose wheel backward without a towbar requires a certain amount of skill, finesse, and attention. Once you learn how to anticipate the nose wheel's reverse...
Forum: RV-12/RV-12iS 03-04-2019, 07:54 PM
Replies: 10
Views: 1,797
Posted By DHeal
I found that the sheet punching process that...

I found that the sheet punching process that Van's uses tends to create a very small burr on only one side of the hole or cut-line. A very light deburring here may be appropriate or even a quick...
Forum: RV Ongoing Maintenance Issues 03-04-2019, 09:53 AM
Replies: 11
Views: 1,287
Posted By DHeal
....and don't forget our infamous summer...

....and don't forget our infamous summer firestorms and winter deluges!
Forum: RV Ongoing Maintenance Issues 03-04-2019, 12:09 AM
Replies: 11
Views: 1,287
Posted By DHeal
I suspect that you are referring to the process...

I suspect that you are referring to the process used to cut open and inspect an oil filter's internal filtering media as part of an oil change. Remove the used oil filter, cut it open using an...
Forum: RV General Discussion/News 03-03-2019, 11:01 AM
Replies: 4
Views: 483
Posted By DHeal
Two good books: Sacramento Sky Ranch Engine...

Two good books:

Sacramento Sky Ranch Engine Manual: Operation, failure, repair, piston aircraft engines Paperback Ė 1991

Mike Busch on Engines: What every aircraft owner needs to know about the...
Forum: RV General Discussion/News 02-27-2019, 08:51 AM
Replies: 7
Views: 702
Posted By DHeal
Having briefly flown a ski-equipped 7AC I am...

Having briefly flown a ski-equipped 7AC I am certainly no expert. However, wouldn't the modest clearance between the aft edge of the lowered flaps and the snow-covered ground potentially be an issue?
Forum: RV-12/RV-12iS 02-25-2019, 08:32 AM
Replies: 3
Views: 584
Posted By DHeal
One data point: The original Lexan back window...

One data point: The original Lexan back window in my 2014 RV-12 (750+ hours) remains in excellent condition with only one barely visible crack at one screw hole that I drilled poorly. I use mogas...
Forum: RV-12/RV-12iS 02-20-2019, 07:56 PM
Replies: 9
Views: 1,023
Posted By DHeal
Running Mods for Bing Carbs at SI-912-032

Hot off the press: https://legacy.rotaxowner.com/si_tb_info/serviceinfo/si-912-032.pdf
Forum: RV-12/RV-12iS 02-15-2019, 08:15 AM
Replies: 5
Views: 764
Posted By DHeal
Airhound --...

Airhound -- https://www.vansaircraft.com/service-information-and-revisions/n-2016-12-14/ -- for "AOA Quick-Release" info.
Forum: RV-10 02-09-2019, 07:31 PM
Replies: 9
Views: 1,326
Posted By DHeal
I prefer to not hang my headsets in the sun...

I prefer to not hang my headsets in the sun (e.g., on a rollover bar hook). They can get too hot to wear initially and its hard on the electronics and materials. Somewhere in the shaded footwells...
Forum: Traditional Aircraft Engines 02-09-2019, 09:06 AM
Replies: 8
Views: 853
Posted By DHeal
I am also a proponent of whistle-stop/breather...

I am also a proponent of whistle-stop/breather holes in breather tubes -- particularly in cold climates. A plug of ice anywhere inside the tube can lead to a blown crankshaft seal and rapid loss of...
Forum: RV-12/RV-12iS 02-05-2019, 09:00 AM
Replies: 11
Views: 2,727
Posted By DHeal
The Power Outlet on the Skyview version of the...

The Power Outlet on the Skyview version of the RV-12 is fused via a 5 amp fuse located on the instrument panel-mounted AV-50001 Switch and Fuse Module. You can find out how your specific RV-12 is...
Forum: RV General Discussion/News 01-31-2019, 04:53 PM
Replies: 59
Views: 5,546
Posted By DHeal
Bummer, my older Apple computer doesn't display...

Bummer, my older Apple computer doesn't display the intro page icons on the new Van's website -- it just shows the generic "photo box". Same issue sporadically throughout the site. Some photos show...
Forum: RV-12/RV-12iS 01-29-2019, 06:09 PM
Replies: 2
Views: 657
Posted By DHeal
Be sure to use a thumb drive of the appropriate...

Be sure to use a thumb drive of the appropriate type and capacity. The basic Dynon monthly data update is pretty basic -- I believe that a suitable thumb drive is included with the Dynon Skyview...
Forum: Electrical Systems 01-28-2019, 07:58 PM
Replies: 14
Views: 1,469
Posted By DHeal
Have you checked for any "parasitic current"...

Have you checked for any "parasitic current" drains that might be discharging your battery prematurely? Many useful videos in this regard on YouTube -- see: "parasitic current draw test".
Forum: RV-12/RV-12iS 01-22-2019, 07:54 PM
Replies: 6
Views: 746
Posted By DHeal
You will likely find it very beneficial to your...

You will likely find it very beneficial to your maintenance efforts to acquire a set of digital plans from Van's for your version of the RV-12 -- this assumes that the previous owner did not provide...
Forum: RV-12/RV-12iS 01-20-2019, 04:34 PM
Replies: 8
Views: 833
Posted By DHeal
A big magnet on a stick to pick up all of those...

A big magnet on a stick to pick up all of those errant pop rivet mandrels rolling around on the floor. :D
Forum: RV-12/RV-12iS 01-20-2019, 03:09 PM
Replies: 23
Views: 2,814
Posted By DHeal
Have you looked at the pictures and instructions...

Have you looked at the pictures and instructions in the applicable SB? It appears your gusset plate is installed in the wrong...
Forum: RV-12/RV-12iS 01-20-2019, 02:56 PM
Replies: 16
Views: 2,530
Posted By DHeal
BTW, when I received the factory trim tab plate...

BTW, when I received the factory trim tab plate it was pre-bent. When installed it perfectly centered the ball and there was no need to tweak it.
Forum: RV-12/RV-12iS 01-20-2019, 02:47 PM
Replies: 23
Views: 2,814
Posted By DHeal
If you look at the two pictures in the above...

If you look at the two pictures in the above posts, note that the inboard longitudinal rivet pattern is parallel to the edge of the gusset in the OP's pix and the reverse orientation in the #2 pix. ...
Forum: RV-12/RV-12iS 01-13-2019, 09:13 AM
Replies: 74
Views: 12,819
Posted By DHeal
A little tip: Before you remove the two...

A little tip: Before you remove the two fiberglass rear fairings, temporarily position the four (two upper and two lower) small reinforcement plates so that you can mark the portions of the fairings...
Forum: RV-12/RV-12iS 01-12-2019, 04:50 PM
Replies: 4
Views: 847
Posted By DHeal
The classic way to remove the piston is to...

The classic way to remove the piston is to carefully blow air (or fluid) into the brake line fitting on the caliper assembly. Be careful that you don't over-pressurize the piston thus turning it...
Forum: RV-12/RV-12iS 01-07-2019, 10:20 AM
Replies: 33
Views: 4,326
Posted By DHeal
The carb bowls are continually vented to the...

The carb bowls are continually vented to the atmosphere via the short clear plastic vent tubes. I suspect that the fuel pressure has nothing to do with sinking floats.
Forum: RV-12/RV-12iS 01-06-2019, 12:43 PM
Replies: 17
Views: 2,314
Posted By DHeal
https://www.vansaircraft.com/cgi-bin/store.cgi?ide...

https://www.vansaircraft.com/cgi-bin/store.cgi?ident=1546803305-68-15&browse=airframe&product=12-canopy-seal

https://www.vansaircraft.com/pdf/revisions/RV-12/RV-12_34.pdf
Forum: RV Ongoing Maintenance Issues 12-26-2018, 08:58 AM
Replies: 53
Views: 10,365
Posted By DHeal
Just a couple of drops of gas a couple of times a...

Just a couple of drops of gas a couple of times a year seems to keep my caps happy. EZ Lube, etc. is just too sticky for this use.
Forum: RV-12/RV-12iS 12-19-2018, 11:02 AM
Replies: 14
Views: 1,662
Posted By DHeal
A couple of years ago I sheared the pitch shear...

A couple of years ago I sheared the pitch shear screw in my RV-12. This was due to my over-enthusiastic movement of the stabilator during a period of aerial messing about. The shear screw is easily...
Forum: RV-12/RV-12iS 12-15-2018, 07:47 PM
Replies: 23
Views: 6,132
Posted By DHeal
If you have the standard MATCO main wheels on...

If you have the standard MATCO main wheels on your RV-12 they should not spin freely. MATCO specifies a certain bearing pre-load and drag for their wheel bearing assemblies. This is all explained...
Forum: Northeast 12-08-2018, 04:12 PM
Replies: 6
Views: 763
Posted By DHeal
All you need is a "rivet shaver bit" for your...

All you need is a "rivet shaver bit" for your micro-stop -- such a bit is not that expensive (aircraft cost-wise ;)) and is a useful tool to have in your aircraft building toolbox.
Forum: RV General Discussion/News 12-06-2018, 09:57 PM
Replies: 26
Views: 2,579
Posted By DHeal
How about restocking the missing "RV-12" decals...

How about restocking the missing "RV-12" decals in BLACK in 6" and 12" sizes. They have been unavailable for several years. Could use some "RV-12" hats as well.
Forum: RV-12/RV-12iS 12-02-2018, 05:42 PM
Replies: 9
Views: 1,669
Posted By DHeal
Your first trouble-shooting action should be to...

Your first trouble-shooting action should be to check all grounds including the primary engine-to-airframe ground -- especially if multiple gauges are involved. Even if the grounds externally look...
Forum: RV-12/RV-12iS 11-27-2018, 02:46 PM
Replies: 15
Views: 1,556
Posted By DHeal
I have been using 107,510 as my K-factor for the...

I have been using 107,510 as my K-factor for the past 300+ hours. This value tracks well with my actual fuel use. My flights typically average about one hour in length -- if you take many multi-hour...
Forum: RV-12/RV-12iS 11-26-2018, 08:32 PM
Replies: 5
Views: 788
Posted By DHeal
Here is a great description of the Corona fuel...

Here is a great description of the Corona fuel pump and the plunger shaft seal (Garlock-style?):
https://electricmotorglider.com/2018/09/21/fuel_pump_912/
Forum: RV-12/RV-12iS 11-26-2018, 04:24 PM
Replies: 5
Views: 788
Posted By DHeal
It seems that the new-style Corona mechanical...

It seems that the new-style Corona mechanical fuel pumps may weep a bit of oil out through the pump drain during normal operation. A small quantity of oil apparently seeps past the rubber oil seal...
Forum: RV-12/RV-12iS 11-26-2018, 08:29 AM
Replies: 3
Views: 856
Posted By DHeal
You can find a generic copy of the PAP for the...

You can find a generic copy of the PAP for the RV-12 at:
http://www.vansaircraft.com/pdf/revisions/RV-12/RV-12_PAP.pdf
Forum: RV-12/RV-12iS 11-15-2018, 11:06 AM
Replies: 23
Views: 4,526
Posted By DHeal
Dare I suggest that you do the repairs yourself? ...

Dare I suggest that you do the repairs yourself? The wing kits go together very quickly and the canopy is not all that difficult to accomplish -- building is part of the experience! I gather that...
Forum: RV-12/RV-12iS 11-14-2018, 05:51 PM
Replies: 26
Views: 4,228
Posted By DHeal
The RV-12 is a terrific kit and a terrific...

The RV-12 is a terrific kit and a terrific airplane. The nascent S-21 looks very appealing and RANS is a long-time premier kit company. I suspect you will be happy with either one. Be brutally...
Forum: RV-12/RV-12iS 11-04-2018, 08:19 PM
Replies: 27
Views: 5,493
Posted By DHeal
See: ...

See: https://legacy.rotaxowner.com/si_tb_info/serviceletter/sl-912-016-r1.pdf

That is ROTAX's Service Letter SL-912-016R1.

Section 3.1.3 pertains to MP and appropriate operating limits.
Forum: My RV Build Project 10-29-2018, 12:50 PM
Replies: 20
Views: 5,422
Posted By DHeal
One assumes that you have also installed the...

One assumes that you have also installed the automatic thermostatically-controlled heater/cooler coils inside the cup holders.
Forum: RV-12/RV-12iS 10-29-2018, 11:56 AM
Replies: 12
Views: 2,071
Posted By DHeal
I too am in the "anti-trickle charger" crowd. ...

I too am in the "anti-trickle charger" crowd. Trickle-chargers have their place but not IMHO on an Odyssey battery -- I think they can do more harm than good. Of course, the best charger is to fly...
Forum: RV-12/RV-12iS 10-27-2018, 04:46 PM
Replies: 7
Views: 1,094
Posted By DHeal
What kind of fuel were you using? 100LL? Auto...

What kind of fuel were you using? 100LL? Auto 91 with 10% ethanol? Auto 91 without ethanol?
Forum: RV-12/RV-12iS 10-23-2018, 09:19 PM
Replies: 33
Views: 3,721
Posted By DHeal
Try this link: ...

Try this link:

https://cafe.foundation/v2/main_home.php

or GOOGLE: Cafe Foundation
Forum: RV-12/RV-12iS 10-23-2018, 08:37 PM
Replies: 33
Views: 3,721
Posted By DHeal
Some info for your...

Some info for your consideration:

https://cafe.foundation/v2/pdf_cafe_reports/Fuel%20Handling%20Safety.pdf

Also, I have found the Mr. Funnel fuel funnel to be difficult to use due to the angle of...
Forum: RV-12/RV-12iS 10-19-2018, 09:05 AM
Replies: 56
Views: 16,515
Posted By DHeal
Great stuff Mike! Thanks!!

Great stuff Mike! Thanks!!
Forum: RV Ongoing Maintenance Issues 10-13-2018, 05:13 PM
Replies: 6
Views: 734
Posted By DHeal
How about this video? ...

How about this video? https://www.youtube.com/watch?v=5RcjEd7lR4Q
Forum: Traditional Aircraft Engines 10-13-2018, 05:07 PM
Replies: 28
Views: 5,489
Posted By DHeal
Many years ago, the Lyc O-360 in our Archer had a...

Many years ago, the Lyc O-360 in our Archer had a wrist pin wear issue on one cylinder. When we removed the primary oil screen for inspection during the Annual, we observed dozens of very small,...
Forum: RV-12/RV-12iS 10-08-2018, 05:42 PM
Replies: 33
Views: 5,708
Posted By DHeal
FYI -- data points (all weights are new / dry /...

FYI -- data points (all weights are new / dry / fresh out of the box):

-- Old-Style ROTAX #861-184 floats = 2.8 grams each
-- New-Style ROTAX #861-188 floats = 3.2 grams each
-- MS 80-430 floats...
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