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Search: Posts Made By: DHeal
Forum: RV Ongoing Maintenance Issues 10-13-2018, 05:13 PM
Replies: 6
Views: 343
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: 25
Views: 3,339
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 10-08-2018, 05:42 PM
Replies: 26
Views: 2,742
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...
Forum: RV-12 10-06-2018, 04:37 PM
Replies: 12
Views: 866
Posted By DHeal
Make sure that when your CHOKE ("Starting Carb"...

Make sure that when your CHOKE ("Starting Carb" in ROTAX parlance) is in the OFF position that the choke lever arms are resting solidly against their stops and there is a wee bit of equal slack in...
Forum: RV-12 09-30-2018, 06:38 PM
Replies: 2
Views: 476
Posted By DHeal
Look through the appropriate wiring diagram for...

Look through the appropriate wiring diagram for you RV-12 (See: http://www.vansaircraft.com/public/downloads.htm) and trace where the landing lights/strobe wires are positioned near the RPM sense...
Forum: RV-12 09-28-2018, 09:16 AM
Replies: 135
Views: 18,159
Posted By DHeal
Right after I sent my double-cracked original hub...

Right after I sent my double-cracked original hub cover to Sensenich they sent me (and I paid for) the newer "D1" hub cover. The D1 cover looks somewhat the same as the original cover but is thicker...
Forum: RV-12 09-22-2018, 09:38 PM
Replies: 26
Views: 2,742
Posted By DHeal
In my experience: Slight smell of fuel in the...

In my experience: Slight smell of fuel in the cockpit during climb, drip or two of fuel from carb vent tube onto pan, and perhaps a slightly rough idle.
Forum: VAF Classifieds (posts in here deleted after 30 days) 09-20-2018, 04:49 PM
Replies: 9
Views: 1,251
Posted By DHeal
As I recall, there are two (?) fuses in the SL-40...

As I recall, there are two (?) fuses in the SL-40 that should be checked before sending it out for repair. One of these fuses is somewhat hidden internally and is often overlooked. Perhaps someone...
Forum: RV-12 09-16-2018, 06:37 PM
Replies: 35
Views: 6,516
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: 539
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: 26
Views: 2,742
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: 94
Views: 14,872
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: 2,038
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: 26
Views: 2,742
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: 26
Views: 2,742
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: 1,382
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: RV-12 08-27-2018, 09:57 AM
Replies: 11
Views: 1,850
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: 853
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: 886
Posted By DHeal
Flammabiity? Just sayin'....

Flammabiity? Just sayin'....
Forum: RV General Discussion/News 08-26-2018, 09:55 AM
Replies: 19
Views: 2,477
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: 706
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: 859
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: 736
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: 135
Views: 18,159
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: 135
Views: 18,159
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: 989
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: 1,205
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: 135
Views: 18,159
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: 135
Views: 18,159
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: 135
Views: 18,159
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: 135
Views: 18,159
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: 2,270
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: 135
Views: 18,159
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: 1,091
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: 19
Views: 2,835
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: 33
Views: 2,946
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: 2,462
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: 4,328
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: 2,462
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: 2,638
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: 2,356
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: 1,850
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: 2,760
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: 2,760
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: 2,938
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: 2,938
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: 2,740
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: 1,002
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: 1,571
Posted By DHeal
Yup, like Alex said.

Yup, like Alex said.
Forum: Traditional Aircraft Engines 05-19-2018, 05:12 PM
Replies: 5
Views: 1,461
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: 536
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: 3,131
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: 5,984
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: 1,594
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: 875
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: 5,421
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: 759
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: 20,046
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: 2,079
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: 2,149
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: 1,878
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: 1,303
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...
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