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Search: Posts Made By: Bob Y
Forum: RV-12/RV-12iS Yesterday, 09:02 PM
Replies: 8
Views: 954
Posted By Bob Y
Something Iíve noticed on mine is that due to the...

Something Iíve noticed on mine is that due to the camber of the wheels, the outside will wear more if the tires are inflated to the maximum 28 psi level. Interesting that the KAI tells us to inflate...
Forum: RV-12/RV-12iS 12-02-2021, 10:31 AM
Replies: 2
Views: 226
Posted By Bob Y
Switch position only.

Switch position only.
Forum: RV-12/RV-12iS 11-29-2021, 08:34 PM
Replies: 8
Views: 565
Posted By Bob Y
I donít know if any of these will help you out,...

I donít know if any of these will help you out, but these are the photos I took of this area during my build.
Forum: RV-12/RV-12iS 11-18-2021, 07:08 AM
Replies: 13
Views: 1,647
Posted By Bob Y
Nice! This was my solution for reaching the...

Nice! This was my solution for reaching the passenger-side vent for us more altitude impaired!
Forum: RV-12/RV-12iS 11-18-2021, 07:05 AM
Replies: 2
Views: 410
Posted By Bob Y
Itís the generator B ground wire. You should...

Itís the generator B ground wire. You should find a white jumper wire with ring terminals on both ends in your wire harness kit. One end goes under the brake-fluid reservoir mounting bolt and the...
Forum: RV-12/RV-12iS 11-06-2021, 03:18 PM
Replies: 4
Views: 548
Posted By Bob Y
These guys are in Waukesha. I believe they used...

These guys are in Waukesha. I believe they used to go by the name of Side By Side Aviation. At least that was the name of the flight school from which I took my required transition training at...
Forum: RV-12/RV-12iS 11-01-2021, 08:14 PM
Replies: 4
Views: 787
Posted By Bob Y
Iím sure youíll get other opinions, but for my...

Iím sure youíll get other opinions, but for my build, I anally painted each of the exposed interior parts, including the inside of the side skins and fuel tank before installation. And yes, I did...
Forum: RV-12/RV-12iS 10-31-2021, 08:02 PM
Replies: 19
Views: 1,866
Posted By Bob Y
Sounds like a connector/electrical issue. Iíd...

Sounds like a connector/electrical issue. Iíd start wiggling connectors to see if you can find a loose one.
Forum: RV-12/RV-12iS 10-30-2021, 01:48 PM
Replies: 3
Views: 564
Posted By Bob Y
I pretty much followed the KAI regarding the bend...

I pretty much followed the KAI regarding the bend angles, making final adjustments as I Clecoed along. It came out acceptability in the end.

In my opinion though, this was the portion of the design...
Forum: RV Building Tips/Techniques 10-27-2021, 08:57 PM
Replies: 14
Views: 1,467
Posted By Bob Y
Follow the direction in Section 5 and Vanís...

Follow the direction in Section 5 and Vanís Support and use progressively larger reamers.
Forum: RV-12/RV-12iS 10-27-2021, 02:14 PM
Replies: 14
Views: 2,542
Posted By Bob Y
Likely from overfilling the tank and fuel leaked...

Likely from overfilling the tank and fuel leaked around the rubber hose. Happened to me on my iS too. I replaced the standard worm-gear clamps with...
Forum: RV Building Tips/Techniques 10-26-2021, 06:51 PM
Replies: 14
Views: 1,467
Posted By Bob Y
Instead of using progressively larger drill bits...

Instead of using progressively larger drill bits to enlarge the pilot holes, I took the recommendation in Section 5 and used reamers. And as mentioned earlier, I oversized the holes slightly to...
Forum: RV-12/RV-12iS 10-25-2021, 03:26 PM
Replies: 3
Views: 957
Posted By Bob Y
See attached - 1/4-18

See attached - 1/4-18
Forum: RV-12/RV-12iS 10-22-2021, 08:26 AM
Replies: 2
Views: 671
Posted By Bob Y
You definitely can. Good that Vanís made this...

You definitely can. Good that Vanís made this change, as you need to verify the fit of the stub spars into the fuselage receptacles, which is much easier to do before theyíre riveted to the wings. ...
Forum: RV-12/RV-12iS 10-19-2021, 04:16 PM
Replies: 12
Views: 2,530
Posted By Bob Y
Yes, Jeff, the 45 deg fitting is a real issue and...

Yes, Jeff, the 45 deg fitting is a real issue and doesnít allow one to follow the latest condition inspection check list regarding the finger strainer. I had initiated this post asking what others...
Forum: RV-12/RV-12iS 10-01-2021, 09:36 AM
Replies: 8
Views: 954
Posted By Bob Y
Jim, what tubes are you using? I have to add 2-3...

Jim, what tubes are you using? I have to add 2-3 psi to my mains every month with those provided by Van's. Tires still look like new with ~120 hours of exclusively hard surface landings.
Forum: RV-12/RV-12iS 09-29-2021, 02:03 PM
Replies: 17
Views: 3,388
Posted By Bob Y
Vanís eliminated the upper and lower yellow...

Vanís eliminated the upper and lower yellow caution fuel pressure ranges in the last firmware update.
Forum: RV-12/RV-12iS 09-28-2021, 03:35 PM
Replies: 30
Views: 5,270
Posted By Bob Y
If nobody replies here, you might post the...

If nobody replies here, you might post the question on the Rotax Owners Forum.

https://www.rotax-owner.com/en/

You do need to subscribe to post questions.
Forum: RV-12/RV-12iS 09-27-2021, 03:49 PM
Replies: 17
Views: 3,388
Posted By Bob Y
Apparently there have been multiple reports of...

Apparently there have been multiple reports of this failure, as Vanís Support indicated an SB is in works to address it.
Forum: RV-12/RV-12iS 09-27-2021, 09:53 AM
Replies: 14
Views: 2,230
Posted By Bob Y
I still havenít found an authoritative answer to...

I still havenít found an authoritative answer to this question either, but Iím starting to wonder if it might start timing when the oil hits the magical 120 degree point? Would sort of correlate...
Forum: RV-12/RV-12iS 09-26-2021, 04:25 PM
Replies: 17
Views: 3,388
Posted By Bob Y
Well, don’t know how many occurrences are...

Well, don’t know how many occurrences are required to call something a pandemic, or how many countries to call it a global pandemic, but when I flew on Friday, I had the EXACT same issue - no fuel...
Forum: RV-12/RV-12iS 09-21-2021, 08:14 PM
Replies: 3
Views: 566
Posted By Bob Y
Don’t recall this being an issue during my build,...

Don’t recall this being an issue during my build, but maybe run a reamer through the hole to remove any possible burrs. Might try twisting a hole deburrer on each side of the hole first to chamfer...
Forum: RV-12/RV-12iS 09-20-2021, 09:39 AM
Replies: 14
Views: 2,230
Posted By Bob Y
Thanks, John. So your numbers correlate well...

Thanks, John. So your numbers correlate well with mine. Glad to know the delta between them is not unique to me. So, the mystery remains as to what ENGINE time means. Hopefully Iíll get to a...
Forum: RV-12/RV-12iS 09-20-2021, 07:32 AM
Replies: 17
Views: 3,388
Posted By Bob Y
Rob, it looks like wire #6267 is the one common...

Rob, it looks like wire #6267 is the one common to both the LED and pump power. See attached from the schematic. Could be a bad connection at pin #7 on the HIC connector.
Forum: RV-12/RV-12iS 09-20-2021, 06:36 AM
Replies: 17
Views: 3,388
Posted By Bob Y
Either would be a PIA, but maybe do some...

Either would be a PIA, but maybe do some substitutional trouble shooting and swap the switches or the power connectors at the pumps to see if the problem stays with the pump or moves. Would help...
Forum: RV-12/RV-12iS 09-19-2021, 08:34 PM
Replies: 14
Views: 2,230
Posted By Bob Y
Guys, I get Hobbs vs. tach time and understand...

Guys, I get Hobbs vs. tach time and understand maintenance is based upon Hobbs. These are produced from the HDX and run per the conditions indicated on the attached from the HDX user manual. This...
Forum: RV-12/RV-12iS 09-19-2021, 08:36 AM
Replies: 14
Views: 2,230
Posted By Bob Y
912iS - Hobbs vs. ENGINE Time

I'm pretty sure this is a 912iS only item...

What's the difference between Hobbs vs. "ENGINE" time in the EMS? When I first energized my HDX system, the Hobbs showed zero, naturally, but there is a...
Forum: RV-12/RV-12iS 09-15-2021, 03:50 PM
Replies: 15
Views: 2,663
Posted By Bob Y
??? They are painted.

??? They are painted.
Forum: RV-12/RV-12iS 09-15-2021, 01:06 PM
Replies: 15
Views: 2,663
Posted By Bob Y
My gun-drilled gear legs are tempered aluminum,...

My gun-drilled gear legs are tempered aluminum, not steel.
Forum: RV-12/RV-12iS 09-14-2021, 08:34 PM
Replies: 6
Views: 848
Posted By Bob Y
How many hours on it? Iím at about 110 with no...

How many hours on it? Iím at about 110 with no issues.

And if Vanís source is an issue, hereís the link directly to Firgelli....
Forum: RV-12/RV-12iS 09-10-2021, 06:05 PM
Replies: 9
Views: 1,432
Posted By Bob Y
I tied my tail down to a tie-down eyelet (catís...

I tied my tail down to a tie-down eyelet (catís paw) on the ramp when I did my dynamic prop balance. Iíve seen one post where the builder tied off to the back of their vehicle.
Forum: RV-12/RV-12iS 09-04-2021, 09:45 AM
Replies: 14
Views: 3,213
Posted By Bob Y
Iím a Dynon guy, but did stumble across this for...

Iím a Dynon guy, but did stumble across this for the G3X. Donít know if it could be an issue for your case or not, but seems worth checking out if you havenít yet....
Forum: RV-12/RV-12iS 09-01-2021, 01:18 PM
Replies: 3
Views: 630
Posted By Bob Y
If you search the site youíll find several...

If you search the site youíll find several threads on this subject. Iíll go out on a limb here and say weíve all had to do something to get holes to align for rivet insertion. Variation in rib...
Forum: RV-12/RV-12iS 08-28-2021, 08:23 PM
Replies: 5
Views: 1,007
Posted By Bob Y
Iíd say itís possible, but you have to think...

Iíd say itís possible, but you have to think about the phase 1 flight period. You obviously wonít be able to fly this off yourself. That person will need to get insurance in your plane, and it will...
Forum: RV-12/RV-12iS 08-28-2021, 06:19 PM
Replies: 2
Views: 518
Posted By Bob Y
Might try contacting Side by Side Aviation at...

Might try contacting Side by Side Aviation at Waukesha Airport. Theyíve got a 12 S-LSA. See who they use. (414) 745-0120
Forum: RV-12/RV-12iS 08-28-2021, 06:14 PM
Replies: 2
Views: 513
Posted By Bob Y
Is this what youíre looking...

Is this what youíre looking for?

https://www.dropbox.com/s/sk2eqobgp2gdd8l/RV12-3%20Views.pdf?dl=0
Forum: RV-12/RV-12iS 08-28-2021, 08:35 AM
Replies: 10
Views: 1,271
Posted By Bob Y
How about a more silly question from us non A&P...

How about a more silly question from us non A&P first-time buildersÖ whatís a double flare?
Forum: RV-12/RV-12iS 08-27-2021, 06:14 PM
Replies: 10
Views: 1,271
Posted By Bob Y
This is the one I got....

This is the one I got.

https://www.aircraftspruce.com/catalog/topages/flaringtools2.php

Not sure if you’re building a ULS or an iS, but I did have to remove the handle to get access to flare one...
Forum: RV-12/RV-12iS 08-24-2021, 08:29 PM
Replies: 22
Views: 5,275
Posted By Bob Y
If I understand your question correctly, when the...

If I understand your question correctly, when the ammeter goes from negative (discharging the battery) to positive, youíre on the generator. You should notice your HDX getting a bit brighter too.
Forum: RV-12/RV-12iS 08-23-2021, 08:37 PM
Replies: 2
Views: 792
Posted By Bob Y
I gave our tax assessor my insurance hull value...

I gave our tax assessor my insurance hull value as evidence of my perceived value for my aircraft. They accepted that value.
Forum: RV-12/RV-12iS 08-21-2021, 03:15 PM
Replies: 8
Views: 1,304
Posted By Bob Y
Definitely wonít be easy to reach, unless you, or...

Definitely wonít be easy to reach, unless you, or someone you know, has small hands, but youíll have to remove the seat ramp to gain access.
Forum: RV-12/RV-12iS 08-18-2021, 02:30 PM
Replies: 15
Views: 2,602
Posted By Bob Y
Scott, whatís the difference between using a...

Scott, whatís the difference between using a W-1207B-25 spar stub vs. a 0.025Ē shim? Donít they both perform the same function?
Forum: RV-12/RV-12iS 08-18-2021, 11:51 AM
Replies: 12
Views: 1,888
Posted By Bob Y
Oddity, for sure! Did you try pulling the fuse...

Oddity, for sure! Did you try pulling the fuse and seeing if it replicated?
Forum: RV-12/RV-12iS 08-15-2021, 09:36 PM
Replies: 12
Views: 1,888
Posted By Bob Y
Assuming the G3X logs the same information as the...

Assuming the G3X logs the same information as the Dynon, the data file will log AOA and stall warning status if you download it to a USB drive.
Forum: RV-12/RV-12iS 08-15-2021, 07:11 PM
Replies: 12
Views: 1,888
Posted By Bob Y
Correct, but heís seeing the AOA transition on...

Correct, but heís seeing the AOA transition on his PFD. That means the ďplumbingĒ is ok. The fact heís not getting audio alerts for either AOA or stall seems to point to a common cause, which...
Forum: RV-12/RV-12iS 08-15-2021, 06:24 PM
Replies: 12
Views: 1,888
Posted By Bob Y
The AOA audio isnít electrically tied to the wing...

The AOA audio isnít electrically tied to the wing connector - itís coming from your EFIS. If youíre seeing AOA transition on the PFD, that means the AOA tubing is still working as intended. To me,...
Forum: RV-12/RV-12iS 08-15-2021, 01:18 PM
Replies: 1
Views: 556
Posted By Bob Y
I donít recall needing to bend mine much, but...

I donít recall needing to bend mine much, but youíll definitely need to bend the flange so itís perpendicular with the web. It needs to sit flat/flush with the avionics shelf.
Forum: RV-12/RV-12iS 08-11-2021, 08:39 PM
Replies: 6
Views: 1,209
Posted By Bob Y
These are the cable operated hose clamp pliers I...

These are the cable operated hose clamp pliers I used on my iS engine. Thatís all I needed for that install. Sounds like the ULS is a bit different....
Forum: RV-12/RV-12iS 08-07-2021, 07:31 PM
Replies: 38
Views: 7,841
Posted By Bob Y
Dick, I wasn’t as successful as Walt with placing...

Dick, I wasn’t as successful as Walt with placing the reflective tape on the back of the spinner backplate. The surface was too reflective so the optical sensor couldn’t distinguish the tape from...
Forum: RV-12/RV-12iS 08-06-2021, 06:46 PM
Replies: 38
Views: 7,841
Posted By Bob Y
See DynaVibe brochure for the...

See DynaVibe brochure for the Rotax.

https://www.dropbox.com/s/53qbtnzvkxjx2gn/DynaVibe%20Rotax%20912.pdf?dl=0
Forum: RV-12/RV-12iS 08-05-2021, 08:46 PM
Replies: 19
Views: 3,171
Posted By Bob Y
Are the AN526C832R8 screws still recommended for...

Are the AN526C832R8 screws still recommended for the cowl hinge pins?
Forum: RV-12/RV-12iS 08-03-2021, 12:49 PM
Replies: 12
Views: 2,166
Posted By Bob Y
So, whatís the difference or advantage of 567 vs....

So, whatís the difference or advantage of 567 vs. 565? Donít have both to be able to easily compare. I used 565 since it was recommended by Vanís in Section 5.

Edit: Answered my own question. In...
Forum: RV-12/RV-12iS 08-01-2021, 07:30 PM
Replies: 48
Views: 13,334
Posted By Bob Y
Wad some newspaper and shove it up into the wheel...

Wad some newspaper and shove it up into the wheel pant so the wheel canít spin freely and see if it goes away. Would at least confirm thatís the source.
Forum: RV-12/RV-12iS 07-28-2021, 07:21 PM
Replies: 12
Views: 2,459
Posted By Bob Y
I can tell you the threaded bosses in the gear...

I can tell you the threaded bosses in the gear box are M8, so compare the size of the one to which you’re referring to those. Hard to tell from the photo if it’s the same size.
Forum: RV-12/RV-12iS 07-27-2021, 12:45 PM
Replies: 3
Views: 1,089
Posted By Bob Y
Thanks again for the suggestion, Larry. It...

Thanks again for the suggestion, Larry. It worked! All I had to do was let the head of the hammer drop about an inch and it was enough shock to break it loose, butÖ as I suspected, whatever caused...
Forum: RV-12/RV-12iS 07-26-2021, 06:23 PM
Replies: 3
Views: 1,089
Posted By Bob Y
Thanks for the suggestion. Iíll give it a shot...

Thanks for the suggestion. Iíll give it a shot tomorrow. I did try banging on it with the heel of my hand, but didnít think of trying something more aggressive.
Forum: RV-12/RV-12iS 07-26-2021, 03:50 PM
Replies: 3
Views: 1,089
Posted By Bob Y
12iS Stuck Mechanical Fuel Gauge

Looking for any suggestions to this issue. My mechanical fuel gauge is stuck at around 18 gal. Here are the things Iíve tried so far:

- Filled and emptied the tank multiple times trying to get it...
Forum: RV-12/RV-12iS 07-25-2021, 04:09 PM
Replies: 16
Views: 2,441
Posted By Bob Y
Hereís what I bought and itís worked well for...

Hereís what I bought and itís worked well for me.

https://www.amazon.com/dp/B003WRJATU/ref=cm_sw_em_r_mt_dp_S4QR0J2AHQGMZFZ8YVH4?_encoding=UTF8&psc=1

And Vanís included a pin removal tool in my...
Forum: RV-12/RV-12iS 07-21-2021, 09:50 PM
Replies: 13
Views: 2,720
Posted By Bob Y
You might try using a punch, awl or pick through...

You might try using a punch, awl or pick through the parts to get things aligned before inserting the bolt.
Forum: RV-12/RV-12iS 07-20-2021, 04:04 PM
Replies: 5
Views: 1,378
Posted By Bob Y
I see several questions and comments to my...

I see several questions and comments to my initial posts will try to address in one response…

I’m using a DynaVibe. I tested at 2k rpm (remained at 0.05 ips), 3k (improved from 0.35 to 0.29 ips),...
Forum: RV-12/RV-12iS 07-19-2021, 12:57 PM
Replies: 5
Views: 1,378
Posted By Bob Y
12iS Exhaust Upgrade And Dynamic Balance

Installed the SB 00013 exhaust upgrade during my condition inspection. And just as I suspected, it did change my dynamic prop balance. Iím usually in the other camp, but this time I lucked out and...
Forum: RV-12/RV-12iS 07-15-2021, 01:10 PM
Replies: 5
Views: 1,972
Posted By Bob Y
Well, Iím obviously not from Vanís, but having...

Well, Iím obviously not from Vanís, but having already completed my build, I recently had a friend that was building his wings ask me the same question. Our conclusion is that back when I built...
Forum: RV-12/RV-12iS 07-11-2021, 03:27 PM
Replies: 8
Views: 1,857
Posted By Bob Y
Page 13-10 covers finger strainer removal, butÖ...

Page 13-10 covers finger strainer removal, butÖ Iím going to go out on a limb here and say I BELIEVE these instructions would work for the legacy ULS, but not as simply stated for the iS. This task...
Forum: RV-12/RV-12iS 07-08-2021, 08:42 PM
Replies: 8
Views: 1,857
Posted By Bob Y
12iS Fuel Tank Finger Strainer

One of the condition inspection tasks is ďclean and inspectĒ fuel tank finger strainer. Because itís a 45 degree fitting and very close to the fuel return line/fitting, it canít be removed without...
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