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Search: Posts Made By: DHeal
Forum: RV-12 09-16-2018, 06:37 PM
Replies: 35
Views: 5,799
Posted By DHeal
How about this: ...

How about this:

http://www.vansaircraft.com/pdf/revisions/RV-12/RV-12_46.pdf

Pages 46-19 to 46-21
Forum: RV General Discussion/News 09-15-2018, 08:57 AM
Replies: 3
Views: 484
Posted By DHeal
I like to leave the oil inspection door open to...

I like to leave the oil inspection door open to facilitate the removal of residual heat from the engine compartment after a flight. I have read that engine heat emissions increase somewhat after...
Forum: RV-12 09-10-2018, 09:05 AM
Replies: 6
Views: 745
Posted By DHeal
Per mark@msacarbs.com: "You are correct there...

Per mark@msacarbs.com:

"You are correct there are 2 floats included in the MS80-430 float kit."
Forum: Alternative Engines 09-09-2018, 08:44 PM
Replies: 93
Views: 13,950
Posted By DHeal
Your video links looks great!

Your video links looks great!
Forum: RV General Discussion/News 09-08-2018, 07:17 PM
Replies: 27
Views: 1,917
Posted By DHeal
It is my understanding that being listed as a...

It is my understanding that being listed as a Named Pilot or Additional Pilot does not afford the NP or AP any guaranteed level of coverage -- it only serves to protect the Insured. If the NP or AP...
Forum: RV-12 09-07-2018, 02:07 PM
Replies: 6
Views: 745
Posted By DHeal
I sent a note to MS asking if this price was for...

I sent a note to MS asking if this price was for a "pair". We'll see.
Forum: RV-12 09-07-2018, 10:58 AM
Replies: 6
Views: 745
Posted By DHeal
New Marvel Schebler MS80-430 Floats

If you, like me, have a collection of sunken Bing carb floats from your ROTAX 912, this alternative may be something to consider:

https://msacarbs.com/news/rotax_bing_float/
Forum: RV General Discussion/News 09-05-2018, 02:52 PM
Replies: 13
Views: 1,338
Posted By DHeal
OK, we've covered the "sweat" issue. Now, how...

OK, we've covered the "sweat" issue. Now, how about the "blood" and "tears" aspect?
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 09-04-2018, 05:05 PM
Replies: 10
Views: 1,507
Posted By DHeal
Many thanks for your continuing support and...

Many thanks for your continuing support and advice over the years!
Forum: RV-12 08-27-2018, 09:57 AM
Replies: 11
Views: 1,429
Posted By DHeal
Your prop pitch adjustment will be much easier...

Your prop pitch adjustment will be much easier and far more accurate if you use an electronic level to set your pitch angles. There is much written here in this RV-12 forum regarding the appropriate...
Forum: RV-12 08-27-2018, 09:38 AM
Replies: 5
Views: 585
Posted By DHeal
IMHO, wait until the last possible convenient...

IMHO, wait until the last possible convenient time to join the tail cone and fuselage together -- even at the hangar if that suits your space/transportation needs. I did as John above did -- I...
Forum: Interiors 08-26-2018, 10:02 AM
Replies: 7
Views: 727
Posted By DHeal
Flammabiity? Just sayin'....

Flammabiity? Just sayin'....
Forum: RV General Discussion/News 08-26-2018, 09:55 AM
Replies: 19
Views: 2,254
Posted By DHeal
FWIW, here is what I am doing to address dynamic...

FWIW, here is what I am doing to address dynamic lateral trim on my RV-12:

1. Ensure that the aircraft is properly rigged i/a/w Van's plans -- Done.

2. Bias the lateral trim using squeezed TE...
Forum: RV-12 08-24-2018, 09:22 PM
Replies: 3
Views: 584
Posted By DHeal
I purchased some black plastic end-plugs that fit...

I purchased some black plastic end-plugs that fit the RV-12 step ends perfectly. See my old VAF forum entry below:

If you want to fill those somewhat unsightly tooling holes on your RV-12's wing...
Forum: RV General Discussion/News 08-17-2018, 05:50 PM
Replies: 11
Views: 793
Posted By DHeal
I have drilled a series of closely-spaced small...

I have drilled a series of closely-spaced small holes (@ 1/16" dia.) along the interior of the planned hole and then used small files to work the rough edge up to the finished configuration. You'll...
Forum: RV-12 08-04-2018, 08:19 AM
Replies: 2
Views: 671
Posted By DHeal
It is my understanding that the warm air within...

It is my understanding that the warm air within the cowling is an important factor in reducing the potential for carb icing within the two CV carbs. Since there is no additional "carb heat"...
Forum: RV-12 07-29-2018, 10:46 AM
Replies: 121
Views: 15,827
Posted By DHeal
Jack -- The Rev D1 cover looks like it will work...

Jack -- The Rev D1 cover looks like it will work fine for me -- an easy fix. Check your PMs. -- David

ps -- I assume you have seen Sensenich's FAQ document for their SB -- it answers many...
Forum: RV-12 07-27-2018, 09:11 PM
Replies: 121
Views: 15,827
Posted By DHeal
Jack asked: "Has anybody found a crack (apart...

Jack asked: "Has anybody found a crack (apart from the one that started it all)? I’ve ordered a replacement cover plate to avoid the repetitive inspections."

Yes, my original circa 2013 / 650+ hour...
Forum: RV-12 07-17-2018, 03:05 PM
Replies: 4
Views: 932
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...
Forum: RV General Discussion/News 07-15-2018, 05:22 PM
Replies: 11
Views: 1,174
Posted By DHeal
Perhaps you should check the "dry tappet...

Perhaps you should check the "dry tappet clearance" -- an excessively tight valve train on one cylinder was the cause of an intermittent misfire on one of my O-360s.
Forum: RV-12 07-14-2018, 05:05 PM
Replies: 121
Views: 15,827
Posted By DHeal
I preface the following by saying that I have not...

I preface the following by saying that I have not yet heard back from Sensenich as to their lab verification of the two "cracks" I believe I found in my black-anodized #2AOR5 hub cover. That being...
Forum: RV-12 07-12-2018, 09:39 PM
Replies: 121
Views: 15,827
Posted By DHeal
After I removed the spinner I looked at the small...

After I removed the spinner I looked at the small bit of hub cover that was visible behind the still-installed front spinner plate -- I saw what appeared to be a very small crack located near one of...
Forum: RV-12 07-12-2018, 02:39 PM
Replies: 121
Views: 15,827
Posted By DHeal
Sensenich prop torque values and maintenance...

Sensenich prop torque values and maintenance requirements are also listed in the applicable Sensenich Installation Instructions document at:

http://www.sensenich.com/documents/

Also, be sure that...
Forum: RV-12 07-12-2018, 09:10 AM
Replies: 121
Views: 15,827
Posted By DHeal
I inspected my front hub cover i/a/w the SB and...

I inspected my front hub cover i/a/w the SB and found what appeared to be two cracks in the areas indicated in the SB -- the cracks are very difficult to see. I shipped the hub to Sensenich for...
Forum: RV-12 07-11-2018, 08:30 AM
Replies: 15
Views: 2,196
Posted By DHeal
A data point: My white-painted RV-12 with...

A data point: My white-painted RV-12 with unfilled rivet heads now has 650 hours over 4 years. It is hangared and has never been washed (other than the occasional wipe-down with a damp rag and "dry...
Forum: RV-12 07-10-2018, 06:42 PM
Replies: 121
Views: 15,827
Posted By DHeal
FYI: New SB 18-07-05 on RV-12 Sensenich Props

FYI: New SB 18-07-05 on RV-12 Sensenich Props

http://www.vansaircraft.com/pdf/service_bulletins/sb18-07-05.pdf
Forum: RV General Discussion/News 07-09-2018, 02:41 PM
Replies: 9
Views: 1,041
Posted By DHeal
Otis -- Install aluminum bolts at ends of gas...

Otis -- Install aluminum bolts at ends of gas struts to serve as break-aways?? -- David
Forum: RV-6/6A 07-08-2018, 06:18 PM
Replies: 18
Views: 1,931
Posted By DHeal
Heated pitot, backup primary instrumentation...

Heated pitot, backup primary instrumentation (gauges and avionics) and adequate electrical system are appropriate. You will find that a good autopilot (including altitude hold) really aids in...
Forum: RV-12 07-07-2018, 03:15 PM
Replies: 20
Views: 1,790
Posted By DHeal
This may be what is being referred...

This may be what is being referred to:

http://www.vansairforce.com/community/showthread.php?t=120649&highlight=purple

http://www.dynonavionics.com/bulletins/support_bulletin_120414.php

I tried...
Forum: RV-12 06-28-2018, 09:58 PM
Replies: 11
Views: 2,352
Posted By DHeal
Dealing with the presence of the belly-mounted...

Dealing with the presence of the belly-mounted comm antenna will likely be a bit of a challenge.
Forum: Safety 06-27-2018, 01:34 PM
Replies: 10
Views: 4,264
Posted By DHeal
I have often found it easier to see the "shadows"...

I have often found it easier to see the "shadows" of power poles rather than the poles themselves. Also, power poles tend to run parallel to roadway edges but not always -- lines crossing roadways...
Forum: RV-12 06-24-2018, 08:22 AM
Replies: 11
Views: 2,352
Posted By DHeal
Here's one thread: ...

Here's one thread:

http://www.vansairforce.com/community/showthread.php?t=121914&highlight=lift

If I were to do this, I guess I would build a relatively flat wooden cradle that supported the...
Forum: Traditional Aircraft Engines 06-18-2018, 11:21 AM
Replies: 21
Views: 2,540
Posted By DHeal
Adequate fuel flow from tanks to carb? Fuel tank...

Adequate fuel flow from tanks to carb? Fuel tank vent system OK? Dry tappet clearances OK? Same rough issue on each mag and/or on both?
Forum: RV-12 06-16-2018, 06:44 PM
Replies: 10
Views: 2,244
Posted By DHeal
The strength and direction of winds aloft are...

The strength and direction of winds aloft are also important when flying in mountainous areas. Maintaining an appropriate altitude above ridge lines during high wind conditions is prudent. The low...
Forum: RV-12 06-07-2018, 02:04 PM
Replies: 15
Views: 1,773
Posted By DHeal
What Tony said! $100 or less and 5 minutes for a...

What Tony said! $100 or less and 5 minutes for a VFR check. Read the Dynon manual so that YOU know what needs to be done -- frequently the tech doesn't know how to conduct a VFR check on a Dynon.
Forum: RV-12 06-06-2018, 10:19 AM
Replies: 12
Views: 2,655
Posted By DHeal
Jim -- I trust that you know NOT to turn the...

Jim --

I trust that you know NOT to turn the ROTAX 912's propeller backwards any significant amount. Doing so has the potential to introduce air into the oil system -- not a good thing.

BTW,...
Forum: RV-12 06-06-2018, 08:41 AM
Replies: 12
Views: 2,655
Posted By DHeal
First off, be sure that there is oil in the...

First off, be sure that there is oil in the engine. :p

Second, be sure you are pulling the prop through relatively slowly with a 2-3 second pause at the point of each cylinder's maximum compression...
Forum: RV-12 06-04-2018, 06:59 PM
Replies: 21
Views: 2,860
Posted By DHeal
Doug -- Sure you can do that. I just didn't want...

Doug -- Sure you can do that. I just didn't want an extra wire in there. In 640 hours I haven't needed to jump the PC-680 so an "emergency jump" fix serves me OK. A plug-in mini-jumper connection...
Forum: RV-12 06-03-2018, 09:00 AM
Replies: 21
Views: 2,860
Posted By DHeal
I've thought about carrying one of those little...

I've thought about carrying one of those little lithium 12-volt battery packs, but I don't have any real world knowledge as to whether or not they would be useful starting up a 912.

Instead, I...
Forum: RV Ongoing Maintenance Issues 05-25-2018, 06:17 PM
Replies: 12
Views: 2,689
Posted By DHeal
If you do your own re-lining be sure to acquire...

If you do your own re-lining be sure to acquire the type of lining rivet setting tool that uses a screw for setting the rivets -- do not use the type of riveter that requires a hammer. As I recall,...
Forum: RV-12 05-21-2018, 09:01 PM
Replies: 2
Views: 981
Posted By DHeal
The pre-bent tab I received from Van's was...

The pre-bent tab I received from Van's was perfect right out of the box for my rudder trim needs. When you install the tab, sneak up on the pull-rivets located near the rudder's trailing edge --...
Forum: RV-12 05-21-2018, 11:28 AM
Replies: 8
Views: 1,522
Posted By DHeal
Yup, like Alex said.

Yup, like Alex said.
Forum: Traditional Aircraft Engines 05-19-2018, 05:12 PM
Replies: 5
Views: 1,439
Posted By DHeal
Good video on aircraft fuel pumps...

Good video on aircraft fuel pumps at:

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

Spring is very stiff, doesn't move much and is hard to move manually.
Forum: RV General Discussion/News 05-17-2018, 02:20 PM
Replies: 4
Views: 520
Posted By DHeal
Rebuild your broken DC headset with a "Headsets,...

Rebuild your broken DC headset with a "Headsets, Inc." ANR conversion kit -- easy conversion, relatively inexpensive and works great.
Forum: RV-12 05-16-2018, 09:51 AM
Replies: 18
Views: 3,057
Posted By DHeal
I purchased a Cleaveland "Main Squeeze" for my...

I purchased a Cleaveland "Main Squeeze" for my RV-12 project. It's pricey but was indispensable for my build. I have two other manually-operated squeezers that now just sit in my tool drawer while...
Forum: RV-12 05-15-2018, 08:37 AM
Replies: 29
Views: 5,930
Posted By DHeal
I would suggest that the aluminum surfaces...

I would suggest that the aluminum surfaces underlying any such foam blocks be coated with corrosion-resistant paint -- as it appears Jack above (or is it down-under?) has done. Over a period of...
Forum: RV-12 05-13-2018, 01:43 PM
Replies: 9
Views: 1,575
Posted By DHeal
I also rotate the plastic bushings whenever I am...

I also rotate the plastic bushings whenever I am in their neighborhood -- like during the annual Condition Inspection, etc.
Forum: RV General Discussion/News 05-11-2018, 08:39 AM
Replies: 5
Views: 855
Posted By DHeal
I strongly suspect that it is your puller, not...

I strongly suspect that it is your puller, not the rivets that is the problem. I pulled some 12,000+ LP4-3 rivets when building my RV-12 and don't recall ever having a single rivet setting failure...
Forum: RV-12 05-09-2018, 03:15 PM
Replies: 25
Views: 5,307
Posted By DHeal
If powder-coating or covering the panel with...

If powder-coating or covering the panel with vinyl overlay be sure to heed the plan's instructions and file the panel edges to permit the extra clearances required to accommodate the extra film...
Forum: RV-12 05-05-2018, 07:25 PM
Replies: 2
Views: 743
Posted By DHeal
I believe that Van's approved a 3 amp fuse for...

I believe that Van's approved a 3 amp fuse for the starter circuit several years ago -- check with Van's techs. My circa 2013 RV-12 plans depict a 3 amp starter fuse. I have had no problems with...
Forum: RV-12 05-04-2018, 09:02 AM
Replies: 55
Views: 19,813
Posted By DHeal
Here's an "out-of-the-box" thought: Builders of...

Here's an "out-of-the-box" thought: Builders of early RV-12s were required to partially disassemble the ignition modules to install the fiberglas engine plenums. When the builders reinstalled the...
Forum: RV-12 05-04-2018, 08:48 AM
Replies: 11
Views: 2,019
Posted By DHeal
When I get an unusual whiff of fuel smell in my...

When I get an unusual whiff of fuel smell in my RV-12 (occasionally occurs during a high-power climb), I usually suspect a sinking (heavy) float -- I too have replaced many defective (and costly)...
Forum: RV-12 04-27-2018, 05:38 PM
Replies: 13
Views: 2,098
Posted By DHeal
Over-pitching your prop has the potential to...

Over-pitching your prop has the potential to damage your engine. See Figure 1 of ROTAX's SL-912-016R1 at:

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

I use the...
Forum: COMM 04-23-2018, 09:02 PM
Replies: 15
Views: 1,848
Posted By DHeal
I converted two David Clark 10-H30 passive...

I converted two David Clark 10-H30 passive headsets into ANRs via the Headsets, Inc. ANR conversion kits -- easy to do, relatively cheap and they work very well.
Forum: RV-12 04-23-2018, 03:49 PM
Replies: 3
Views: 1,271
Posted By DHeal
Here's my experience with the RV-12 LEXAN window...

Here's my experience with the RV-12 LEXAN window at 4+ years / 625 hours / 90% mogas 91 with 10% ethanol: I installed the LEXAN window in accordance with Van's plans (i.e., fuel sealant in and...
Forum: RV-12 04-22-2018, 01:50 PM
Replies: 28
Views: 4,642
Posted By DHeal
Also check for debris in the return fuel line...

Also check for debris in the return fuel line metering orifice.
Forum: Traditional Aircraft Engines 04-21-2018, 10:02 AM
Replies: 12
Views: 1,719
Posted By DHeal
Sorry but the engine is 44 years since reman with...

Sorry but the engine is 44 years since reman with an average of 18 hours per year (with long periods of non-use) and is evidencing signs of wear / distress -- it deserves an overhaul. I would...
Forum: RV-12 04-20-2018, 07:24 PM
Replies: 28
Views: 5,308
Posted By DHeal
Here are a few more thoughts: Are the two carbs...

Here are a few more thoughts: Are the two carbs fully seated in their respective rubber sockets? Spark plug wires properly routed to plugs? Were you careful when removing / replacing the spark...
Forum: RV-12 04-20-2018, 11:46 AM
Replies: 28
Views: 5,308
Posted By DHeal
Are carb bowl gaskets properly seated? Did you...

Are carb bowl gaskets properly seated? Did you blow air through the orifice in the lower corner of the carb bowl to clean out any debris (I believe that orifice is part of the start/idle circuit but...
Forum: RV-12 04-18-2018, 11:18 AM
Replies: 6
Views: 1,609
Posted By DHeal
IMHO, this gusset is a real enhancement -- a...

IMHO, this gusset is a real enhancement -- a number of us installed our own versions of this gusset over the past years in response to bent rails. I suggest that if you build your own version you...
Forum: RV-12 04-12-2018, 09:54 PM
Replies: 9
Views: 2,467
Posted By DHeal
Effect on ADHRS? I recall that the plans suggest...

Effect on ADHRS? I recall that the plans suggest squeezing the canopy handle mounting tube a bit to keep the handle from flopping around. I added an O-ring or two as well to increase turning...
Forum: RV-12 04-12-2018, 08:03 PM
Replies: 7
Views: 1,734
Posted By DHeal
As I recall, the Dynon Skyview Installation...

As I recall, the Dynon Skyview Installation Manual has installation templates and wiring information. See Sections 18 and 19 of...
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