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Search: Posts Made By: rvbuilder2002
Forum: RV-12 Today, 12:37 AM
Replies: 103
Views: 10,723
Posted By rvbuilder2002
I am not at all clear how if no one at Van's...

I am not at all clear how if no one at Van's asked you about your engine and that you have spoken (or communicated via text message) with seven people there, that it implies there could be other...
Forum: RV-12 Yesterday, 08:45 PM
Replies: 103
Views: 10,723
Posted By rvbuilder2002
The only other engine failure in an RV-12 was...

The only other engine failure in an RV-12 was builder induced.
I mentioned it earlier in this thread. You can read about it on page 13
in this old RVator...
Forum: RV General Discussion/News Yesterday, 01:58 PM
Replies: 9
Views: 647
Posted By rvbuilder2002
If the Dynavibe resolved to an IPS value of .19,...

If the Dynavibe resolved to an IPS value of .19, I guarantee there is a high enough vibration that would be beneficial to resolve whether you think you feel it or not, but I agree that the amount the...
Forum: RV-6/6A Yesterday, 09:51 AM
Replies: 3
Views: 207
Posted By rvbuilder2002
FYI, there are other wheel/brake options...

FYI, there are other wheel/brake options available that would allow you to replace the entire wheel and brake set for not much more $$$ than what that one Cleveland part costs.

At the very least, I...
Forum: RV General Discussion/News 12-12-2017, 11:33 PM
Replies: 63
Views: 3,089
Posted By rvbuilder2002
I don't think what he said was in any way...

I don't think what he said was in any way implying it had no value.

In fact what he did say was pretty much 100% right on.
Forum: RV-12 12-12-2017, 08:01 AM
Replies: 6
Views: 1,119
Posted By rvbuilder2002
Probably more critical for the fatigue life of...

Probably more critical for the fatigue life of the pitot tube is precise spinner alignment described in the install process).
I think the prototype is still using its original pitot tube (well past...
Forum: RV General Discussion/News 12-11-2017, 04:21 PM
Replies: 63
Views: 3,089
Posted By rvbuilder2002
I different slant on the same idea......

It would be hard to qualify the used RV market as a money maker for Van's.....

One example would be to consider the cost of tech support.
When a builder finishes an RV, the need for tech support...
Forum: RV-14 12-11-2017, 04:07 PM
Replies: 2
Views: 323
Posted By rvbuilder2002
A #30 pilot on a countersink is a very close fit...

A #30 pilot on a countersink is a very close fit for a #8 nutplate.
Forum: RV-6/6A 12-11-2017, 11:51 AM
Replies: 21
Views: 3,367
Posted By rvbuilder2002
Like anything with airplanes, we can talk about...

Like anything with airplanes, we can talk about what to do, but that doesn't mean someone will no how to or will do it correctly.

I have seen the aftermath of numerous tires where not enough talc...
Forum: RV-12 12-11-2017, 09:47 AM
Replies: 103
Views: 10,723
Posted By rvbuilder2002
Actually they do tell you it is the designers...

Actually they do tell you it is the designers responsibility to assure all of the install requirements are met. It is clearly spelled out in the install manual. But they don't tell you that you...
Forum: RV-12 12-11-2017, 12:22 AM
Replies: 103
Views: 10,723
Posted By rvbuilder2002
As mentioned by Jerry, the use of individual...

As mentioned by Jerry, the use of individual filters on the carbs is very common with many different aircraft manufacturers/designs.

The filters are supplied by Rotax with the engine and in fact are...
Forum: RV-14 12-10-2017, 10:36 PM
Replies: 3
Views: 538
Posted By rvbuilder2002
Until someone actually trys both on the same...

Until someone actually trys both on the same airplane and does some detailed flight testing of each, any performance differences are only speculation
Forum: RV-6/6A 12-09-2017, 12:45 PM
Replies: 21
Views: 3,367
Posted By rvbuilder2002
It is usually attributed to rub abrasion between...

It is usually attributed to rub abrasion between the tube and the interior of the tire (if you inspect the interior of a tire closely, it is quite rough and abrasive).

The typical cause is lack of...
Forum: RV-12 12-09-2017, 11:08 AM
Replies: 28
Views: 1,629
Posted By rvbuilder2002
That would make sense but look at the data...

That would make sense but look at the data chart.
It shows oil temp at 200 in a power off decent.... that would be a low power demand situation.....
Forum: RV-12 12-09-2017, 10:17 AM
Replies: 103
Views: 10,723
Posted By rvbuilder2002
I agree. The time period at max. RPM and at 4000...

I agree. The time period at max. RPM and at 4000 for the run up / ign. check are about the same. It would be unusual for an ign chech to take more than 30 seconds.... and 15 seconds would probably...
Forum: RV General Discussion/News 12-09-2017, 01:29 AM
Replies: 10
Views: 1,325
Posted By rvbuilder2002
I have heard they are scheduled to arrive the...

I have heard they are scheduled to arrive the beginning of next week and that they will begin shipping immediately.
Forum: RV-12 12-09-2017, 01:26 AM
Replies: 28
Views: 1,629
Posted By rvbuilder2002
Any idea why this doesn't jive with the...

Any idea why this doesn't jive with the experience John is having?
Forum: RV-12 12-08-2017, 05:20 PM
Replies: 28
Views: 1,629
Posted By rvbuilder2002
The airplane it is on is an E-LSA (experimental)...

The airplane it is on is an E-LSA (experimental) RV-12, because we have a lot more latitude in regards to general testing than with an S-LSA
It is being evaluated so it is not yet a sure thing for...
Forum: RV-12 12-08-2017, 02:18 PM
Replies: 103
Views: 10,723
Posted By rvbuilder2002
Read my post again...... I said the pitch value...

Read my post again......

I said the pitch value people are flying with.
I didn't say the value that Van's makes them use.

And then go read the entire document.
No where does it say that if you do...
Forum: RV-12 12-08-2017, 12:23 PM
Replies: 28
Views: 1,629
Posted By rvbuilder2002
I do understand how it works John (we actually...

I do understand how it works John (we actually have one installed on the RV-12iS).

The valve is plumbed into the system so that the oil pump pulls oil either directly from the oil tank (when the oil...
Forum: RV-6/6A 12-08-2017, 11:49 AM
Replies: 21
Views: 3,367
Posted By rvbuilder2002
There is no published recommendation except for...

There is no published recommendation except for the RV-12. It (in most instances) gets built matching a standard... the certified S-LSA.

For all of the others, there is not standard (some people...
Forum: RV-14 12-08-2017, 10:25 AM
Replies: 5
Views: 317
Posted By rvbuilder2002
A transition in production was (mostly) completed...

A transition in production was (mostly) completed about 3 months ago that has gel-coat on nearly all composite parts supplied in RV kits.
Forum: RV-12 12-08-2017, 10:10 AM
Replies: 103
Views: 10,723
Posted By rvbuilder2002
No smoke visible yet.......

Investigating and evaluating failure modes can be very challenging, but finding the real answer can be made much more difficult if some info is accepted as fact and other info is ignored.

What...
Forum: RV-12 12-08-2017, 09:22 AM
Replies: 28
Views: 1,629
Posted By rvbuilder2002
The thermostatic valves typically used on Rotax...

The thermostatic valves typically used on Rotax installations are unable to shut off all oil flow to the oil cooler. This is a safety feature to prevent the oil in the cooler circuit from ever...
Forum: RV-14 12-07-2017, 11:59 AM
Replies: 5
Views: 440
Posted By rvbuilder2002
I wasn't suggesting just let the pros do it, just...

I wasn't suggesting just let the pros do it, just pointing out how the pros do it.

I don't think just adding 12" to your measurements would be a good idea.

Stringing some scrap wires and taping...
Forum: RV-12 12-07-2017, 11:37 AM
Replies: 19
Views: 1,322
Posted By rvbuilder2002
Ok, but it seemed like that is what you...

Ok, but it seemed like that is what you said.....






I believe the updated version VA-216 is teflon.

The gascolator to engine driven fuel pump hose is part of the engine as supplied by Rotax. ...
Forum: RV-12 12-07-2017, 09:34 AM
Replies: 19
Views: 1,322
Posted By rvbuilder2002
I am not clear on why a more expensive hose is...

I am not clear on why a more expensive hose is justification to prevent someone from installing a hose incorrectly, when the instructions are very clear about saying "use caution, this hose can be...
Forum: RV-14 12-06-2017, 11:40 PM
Replies: 5
Views: 440
Posted By rvbuilder2002
All depends on your preference.... Other custom...

All depends on your preference....

Other custom panel builders such as AFS and Steinair do panels with pre-planned routing for the main bulk of the harness which makes for a very tidy installation.
Forum: RV-12 12-06-2017, 10:27 PM
Replies: 19
Views: 1,322
Posted By rvbuilder2002
If everything is assembled correctly the fuel...

If everything is assembled correctly the fuel that feeds both carbs and the pressure sensor is before/upstream of the restrictor.

The restrictor is inside of the double banjo fitting on the top of...
Forum: RV-12 12-06-2017, 10:19 PM
Replies: 28
Views: 1,629
Posted By rvbuilder2002
The oil temp sensor is located at the oil pump...

The oil temp sensor is located at the oil pump housing, reading the temp of the oil as it enters the engine.
The oil cooler on the RV-12 is connected in series between the oil tank and the oil pump...
Forum: RV-12 12-05-2017, 02:05 PM
Replies: 6
Views: 1,215
Posted By rvbuilder2002
https://www.cps-parts.com/cps/graphics/15-00392a.j...

https://www.cps-parts.com/cps/graphics/15-00392a.jpg If the carb mount is removed from the manifold so that it can be inspected, a raised area around the flow path hole can be seen. It is basically...
Forum: RV General Discussion/News 12-05-2017, 11:26 AM
Replies: 15
Views: 1,263
Posted By rvbuilder2002
Breakers trip from current flow above the value...

Breakers trip from current flow above the value they are rated for.
Voltage, on the other hand has no influence on whether a breaker will trip (assuming it doesn't go below the nominal range) but it...
Forum: RV-10 12-05-2017, 10:04 AM
Replies: 16
Views: 789
Posted By rvbuilder2002
I can't answer that... everyone's body is...

I can't answer that... everyone's body is slightly different.
If you were able to just barely comfortably reach it in the stock location, 1" fwd could cause it to be a stretch.

I am 5'9" and about...
Forum: RV-10 12-04-2017, 04:11 PM
Replies: 16
Views: 789
Posted By rvbuilder2002
It is a pain if you have to loosen shoulder...

It is a pain if you have to loosen shoulder harnesses whenever you want to reach the fuel valve.......
Forum: RV Building Tips/Techniques 12-04-2017, 10:10 AM
Replies: 7
Views: 671
Posted By rvbuilder2002
Have you seen this...

Have you seen this thread?http://www.vansairforce.com/community/showthread.php?t=155478

Post # 7 links to a previous post I made regarding countersinking for...
Forum: RV General Discussion/News 12-04-2017, 09:23 AM
Replies: 4
Views: 276
Posted By rvbuilder2002
It is still early for me so I could be wrong, but...

It is still early for me so I could be wrong, but it sounds like if Cyl # 2 on the screen now reads normal with it installed on cyl # 4, then it is reading correctly because it shows that cyl 4 is...
Forum: RV-12 12-02-2017, 08:27 PM
Replies: 4
Views: 622
Posted By rvbuilder2002
Keep in mind that it is a light airplane. There...

Keep in mind that it is a light airplane.
There is quite a bit of difference in camber at light solo weights versus gross weight.

Higher tire pressure wont change the zone where your tire is...
Forum: RV-12 12-02-2017, 08:19 PM
Replies: 103
Views: 10,723
Posted By rvbuilder2002
I understand that. Like I already said, it is not...

I understand that.
Like I already said, it is not Van's warranty (just like the business you bought your replacement engine from, it is not their warranty for your replacement either).

There is a...
Forum: RV-12 12-02-2017, 08:04 PM
Replies: 103
Views: 10,723
Posted By rvbuilder2002
That wasn't what I was remembering when it was...

That wasn't what I was remembering when it was originally looked at so that was what caused my confusing post , but that was more than 10 years ago (sorry, my memory is not what it used to be).
Not...
Forum: RV-12 12-02-2017, 04:28 PM
Replies: 103
Views: 10,723
Posted By rvbuilder2002
My original comment was based on the other one...

My original comment was based on the other one above.
I stand correct. Though there is still a large difference between the generation of electrical power for the 912iS and the UL power.

When the...
Forum: RV General Discussion/News 12-02-2017, 04:14 PM
Replies: 10
Views: 585
Posted By rvbuilder2002
These tubes are used to sense an air pressure...

These tubes are used to sense an air pressure value.
There is no flow through the tube.
So as long as the tube is not completely blocked and it doesn't look like a crack has started that could fail...
Forum: RV-12 12-02-2017, 04:09 PM
Replies: 103
Views: 10,723
Posted By rvbuilder2002
You must have misunderstood...... My comment was...

You must have misunderstood......

My comment was in regards to the 912iS engine.
In a previous post it was questioned whether the iS engine was reliant on airframe power to run like the UL Power...
Forum: RV-12 12-02-2017, 12:30 PM
Replies: 103
Views: 10,723
Posted By rvbuilder2002
A few comments based on previous posts......

Van's is switching to using the Rotax 912iS on the RV-12, (not the 914).
There are no airframe electrical dependency issues with the 912iS like there is with the UL engine. Once it has been started,...
Forum: RV General Discussion/News 12-01-2017, 04:18 PM
Replies: 64
Views: 7,946
Posted By rvbuilder2002
I agree that a lot of the people that take on...

I agree that a lot of the people that take on building an RV are engineer or technical types, but the major majority are not.
In fact with the advancements in the later kits, more and more everyday...
Forum: RV General Discussion/News 12-01-2017, 11:04 AM
Replies: 10
Views: 1,325
Posted By rvbuilder2002
I believe they have been through the final...

I believe they have been through the final proofing process and released for production, so they should be available very soon.
Forum: Traditional Aircraft Engines 12-01-2017, 10:52 AM
Replies: 7
Views: 557
Posted By rvbuilder2002
RV's with a fixed pitch prop that is pitched for...

RV's with a fixed pitch prop that is pitched for good all around (total) performance will usually reach max continuous RPM (2700) at WOT at somewhere between 8000-10,000 ft.

Any lower than that,...
Forum: Propellers 11-30-2017, 10:33 PM
Replies: 9
Views: 566
Posted By rvbuilder2002
Who recently told you that? I have not heard...

Who recently told you that?

I have not heard about any difficulties.

If it were true, it would pretty much put Sensenich out the metal RV prop business because there attachment is designed around...
Forum: RV General Discussion/News 11-30-2017, 01:46 PM
Replies: 3
Views: 572
Posted By rvbuilder2002
They have always been available as a pre-made...

They have always been available as a pre-made part.
Forum: Traditional Aircraft Engines 11-30-2017, 11:58 AM
Replies: 7
Views: 557
Posted By rvbuilder2002
I agree with Paul. The first thing to do would...

I agree with Paul. The first thing to do would be confirm that the tach. reading is correct.
If it is correct, then all of your RPM values are well below what is typical for an RV-6 with a well...
Forum: RV-12 11-30-2017, 11:53 AM
Replies: 11
Views: 1,872
Posted By rvbuilder2002
Looks like an accurate assessment Mark. The fuel...

Looks like an accurate assessment Mark.

The fuel valve is now remotely controlled via a cable control which can bee seen just to the right of the throttle in a photo on the RV-12 WHATS NEW...
Forum: RV General Discussion/News 11-30-2017, 11:45 AM
Replies: 8
Views: 650
Posted By rvbuilder2002
That occurs for all threaded fasteners whether...

That occurs for all threaded fasteners whether they have a self locking feature or not, so the specified torque value takes it into account.

Because different locking features have different...
Forum: RV General Discussion/News 11-30-2017, 09:23 AM
Replies: 3
Views: 572
Posted By rvbuilder2002
No they are not. Maybe when yours were installed...

No they are not.
Maybe when yours were installed they were not aligned correctly, or when they were shortened the alignment of the step portion was changed.
Forum: Traditional Aircraft Engines 11-29-2017, 06:03 PM
Replies: 12
Views: 917
Posted By rvbuilder2002
I think another might be that modern auto engines...

I think another might be that modern auto engines run rather tight clearances which work just fine at the lower oil viscosity that is the result of the higher oil temps.
Lycomings by comparison are...
Forum: RV-12 11-29-2017, 05:54 PM
Replies: 24
Views: 2,375
Posted By rvbuilder2002
I thinks you are putting a bunch of different...

I thinks you are putting a bunch of different information/tidbits/comments together to come to an incorrect conclusion.
Forum: RV-12 11-29-2017, 04:26 PM
Replies: 24
Views: 2,375
Posted By rvbuilder2002
I was specifically referring to problems with the...

I was specifically referring to problems with the cherry rivets because they have slightly shorter stems.
Forum: RV-12 11-29-2017, 02:02 PM
Replies: 24
Views: 2,375
Posted By rvbuilder2002
One potential problem that may occur with some...

One potential problem that may occur with some blind rivet tools while using the wedge tool sold by Cleveland Tools is that because of the thickness of the wedge tool, the jaws of the puller tool...
Forum: RV General Discussion/News 11-29-2017, 01:51 PM
Replies: 8
Views: 650
Posted By rvbuilder2002
AC43.13 has you covered (as well as a lot of the...

AC43.13 has you covered (as well as a lot of the aircraft mechanic manuals such as Standard Aircraft Handbook, etc.).
They also show you how to add an extension and not need not compute an alternate...
Forum: RV-12 11-29-2017, 11:57 AM
Replies: 24
Views: 2,375
Posted By rvbuilder2002
FYI, the rivet info included in this SB was...

FYI, the rivet info included in this SB was incorporated int Section 5 (https://www.vansaircraft.com/pdf/revisions/RV-ALL_05.pdf) of the construction manual.
Forum: Alternative Engines 11-27-2017, 08:46 AM
Replies: 79
Views: 17,120
Posted By rvbuilder2002
What I did actually say was that the U.S....

What I did actually say was that the U.S. representatives of Rotax (the ones that work directly with OEM customers) actually advise OEM customers that it will require more cooling system...
Forum: RV General Discussion/News 11-26-2017, 11:02 PM
Replies: 37
Views: 5,745
Posted By rvbuilder2002
Years ago Van went through a lot of different...

Years ago Van went through a lot of different ideas to resolve problems very similar to yours on his RV-4 equipped with an Ellison throttle body (which I believe is very similar to what you are...
Forum: Alternative Engines 11-26-2017, 10:51 PM
Replies: 79
Views: 17,120
Posted By rvbuilder2002
It is sad that a lot of information regarding...

It is sad that a lot of information regarding successful engine conversions is supposed to be taken at face value, but when anything is detected as even slightly negative, a way is found to discount...
Forum: Alternative Engines 11-26-2017, 08:42 AM
Replies: 79
Views: 17,120
Posted By rvbuilder2002
There now seems to be a hang-up in the context...

There now seems to be a hang-up in the context that if the weight difference isn't actually 100 lbs, it doesn't matter......

Yes, actual empty weights of completed RV's vary. If you account for the...
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