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Search: Posts Made By: kaa
Forum: RV-7/7A 04-29-2021, 09:35 PM
Replies: 19
Views: 1,281
Posted By kaa
I put mine between the central stack and the PFD....

I put mine between the central stack and the PFD. My logic was that I'll most likely really need it if PFD fails in instrument conditions and in that case I want G5 as close to the GPS as possible....
Forum: Alternative Engines 02-24-2021, 02:58 PM
Replies: 52
Views: 4,667
Posted By kaa
Interesting, could you elaborate your thinking...

Interesting, could you elaborate your thinking about sailplane? Is it the fact that high-density batteries don't tolerate being damaged or shorted or is there something more subtle to this?
Forum: Midwest 02-09-2021, 11:21 AM
Replies: 5
Views: 469
Posted By kaa
Thanks everyone for suggestions, much appreciated.

Thanks everyone for suggestions, much appreciated.
Forum: Midwest 02-08-2021, 10:47 AM
Replies: 5
Views: 469
Posted By kaa
Instructor recommendations for BFR (North Denver/Boulder area)

Hi all,

I was wondering if someone could recommend an instructor to do a BFR with in my RV7. Thanks!
Forum: Safety 12-27-2020, 09:55 AM
Replies: 61
Views: 9,337
Posted By kaa
May be useful to figure out why this is happening...

May be useful to figure out why this is happening first though. The shunt itself cannot fail this way (unless you have a hall effect current sensor), so there is something wrong in the wiring or EIS.
Forum: Electronic Ignition Systems 12-26-2020, 03:11 PM
Replies: 3
Views: 708
Posted By kaa
P-MAG with EI commander weird advance problem on startup

Hi All,

I've been running a dual P-MAG setup for a few years on my Lycoming O-360 and it has developed a peculiar problem lately. Normally when I start the engine both ignitions show the advance of...
Forum: RV-7/7A 12-26-2020, 03:01 PM
Replies: 8
Views: 897
Posted By kaa
Thanks everyone for great suggestions, as...

Thanks everyone for great suggestions, as always!

Yeah, I looked at it closer and the builder installed 5/16-24 tie downs, probably tapped into an over-sized hole, so no surprise that they stripped...
Forum: RV-7/7A 12-25-2020, 07:46 PM
Replies: 8
Views: 897
Posted By kaa
Stripped tie-down thread in W-731

Hi all,

I was attaching a fuel pump grounding cable to the tie-down eye bolt a few days ago and found out that the thread in the tie-down bar is stripped. Not sure how it happened, maybe the bolt...
Forum: Safety 12-04-2020, 06:37 PM
Replies: 91
Views: 14,783
Posted By kaa
SteinAir does great work, but be sure to know...

SteinAir does great work, but be sure to know where exactly you want to put your boxes and how long the runs between them should be. I gave them some approximate numbers (bad planning on my part),...
Forum: RV-7/7A 12-01-2020, 11:47 PM
Replies: 16
Views: 2,175
Posted By kaa
When I did my panel I grouped the switches by the...

When I did my panel I grouped the switches by the phase of flight, and I like it quite a bit. So I basically only put switches that are used in flight over the engine controls. I don't have a good...
Forum: Safety 11-22-2020, 09:35 PM
Replies: 9
Views: 1,514
Posted By kaa
Yeah, I think it has never been torqued. I don't...

Yeah, I think it has never been torqued. I don't really see another explanation for why the torque strip is aligned. Plus, it's difficult to explain how it can loosen to the point of finger-tight,...
Forum: Safety 11-22-2020, 08:00 PM
Replies: 9
Views: 1,514
Posted By kaa
Check those fittings

Not sure if there is anything new to the story, but I just wanted to share.

I've always steered away from doing work on the fuel system of my plane (I didn't build it). However with the panel...
Forum: RV General Discussion/News 11-12-2020, 08:23 PM
Replies: 1
Views: 939
Posted By kaa
If it's anything like front range airports (BJC...

If it's anything like front range airports (BJC and around), then I expect the space to be hard to come by. I'm currently looking and only found a group hangar at the BDU. I also saw a temporary...
Forum: Midwest 10-22-2020, 06:17 PM
Replies: 2
Views: 589
Posted By kaa
Thanks, Ken! Sent you a PM.

Thanks, Ken! Sent you a PM.
Forum: Midwest 10-22-2020, 04:21 PM
Replies: 2
Views: 589
Posted By kaa
Hangars north of Denver? (KLMO)

Hi all,

I'm firming up my plans to move the Denver area (Longmont) by the end of the year, and am currently looking for a hangar for my RV-7. I got on a few wait lists, but they are pretty long....
Forum: Traditional Aircraft Engines 09-24-2020, 12:47 PM
Replies: 5
Views: 1,079
Posted By kaa
Oh, I see. I'll try that.

Oh, I see. I'll try that.
Forum: Traditional Aircraft Engines 09-24-2020, 10:29 AM
Replies: 5
Views: 1,079
Posted By kaa
I guess #1 is more complicated than just a spike....

I guess #1 is more complicated than just a spike. I highlighted areas that I'm confused about. At least #2 definitely increases there?


I have a carb unfortunately.


They all increase together, I...
Forum: Traditional Aircraft Engines 09-23-2020, 11:27 PM
Replies: 5
Views: 1,079
Posted By kaa
EGT spike on throttle reduction

Hi all,

I know what you're thinking - induction leak. This was the consensus in my previous thread about high CHTs (which I think I can get under control). The problem is that I cannot find any...
Forum: Traditional Aircraft Engines 09-05-2020, 10:40 PM
Replies: 31
Views: 7,755
Posted By kaa
Finally some good news, I think. I sealed the...

Finally some good news, I think. I sealed the baffles as much as I could using high speed tape and RTV, but it didn't do much, I was still seeing 425F in a climb on a 90 degree day. What helped was...
Forum: Traditional Aircraft Engines 08-24-2020, 02:46 PM
Replies: 31
Views: 7,755
Posted By kaa
FWIW, I only saw 1-2 GPH increase on takeoff. Not...

FWIW, I only saw 1-2 GPH increase on takeoff. Not sure if my old carb was modified or what.

Haven't looked at my intake leak situation more yet (I was away in the last to weeks, and now it's too...
Forum: California 08-13-2020, 03:37 PM
Replies: 5
Views: 1,466
Posted By kaa
Hangar around Placerville

Hi everyone,

With all that's happening with remote work, I'm seriously considering moving from the Bay Area somewhere closer to Sierras, and I've been looking at the hangar situation around...
Forum: Traditional Aircraft Engines 08-02-2020, 11:16 PM
Replies: 31
Views: 7,755
Posted By kaa
Well, I installed the no-leak kit from Ross, and...

Well, I installed the no-leak kit from Ross, and nothing changed. The graphs looks exactly the same with #2 showing a big rise on throttle reduction. I guess it's something else then?

Could it be...
Forum: Traditional Aircraft Engines 07-27-2020, 12:45 PM
Replies: 31
Views: 7,755
Posted By kaa
Could you explain why? Don't #1 and #2 show the...

Could you explain why? Don't #1 and #2 show the same amount of EGT increase?
Forum: Traditional Aircraft Engines 07-27-2020, 11:00 AM
Replies: 31
Views: 7,755
Posted By kaa
Thanks, I just ordered a kit from Ross. Hopefully...

Thanks, I just ordered a kit from Ross. Hopefully it fixes things.

I have an EICommander, and it shows that advance increases as MP is reduced, as expected.
Forum: Traditional Aircraft Engines 07-26-2020, 07:24 PM
Replies: 31
Views: 7,755
Posted By kaa
Thanks everyone for the help, much appreciated. I...

Thanks everyone for the help, much appreciated. I tried to plug some holes behind cyl #3 and #4 (around the dipstick and symmetrically on the other side) and it may have helped a bit, but not much....
Forum: Traditional Aircraft Engines 07-25-2020, 08:33 AM
Replies: 31
Views: 7,755
Posted By kaa
Thanks! Yeah, I'm starting to think that the...

Thanks!

Yeah, I'm starting to think that the whole induction leak theory isn't that great. I'll do proper cruise checks.

Walt, are you saying that EI is 40 degrees lower steady state or that it's...
Forum: Traditional Aircraft Engines 07-24-2020, 10:45 PM
Replies: 31
Views: 7,755
Posted By kaa
I installed an overhauled 10-4164-1 carb, and...

I installed an overhauled 10-4164-1 carb, and nothing much changed. The fuel flow went from 15 to 17.5, so that's nice, but the CHTs didn't seem to drop much (just consistent with a cooler day). I...
Forum: Traditional Aircraft Engines 07-22-2020, 11:03 PM
Replies: 7
Views: 2,258
Posted By kaa
It sounds like either a push button failed short...

It sounds like either a push button failed short and energized the valve, or the valve itself failed. If it's the push button, I'd replace it with something more robust (I use a Honeywell 1TL...
Forum: RV General Discussion/News 07-16-2020, 07:54 PM
Replies: 17
Views: 3,074
Posted By kaa
If you don't hear from them, it doesn't mean that...

If you don't hear from them, it doesn't mean that you don't owe the tax, the responsibility is on you to pay it either way. I didn't realize that this tax was a thing, and last year I was hit with 4...
Forum: Traditional Aircraft Engines 07-14-2020, 02:23 PM
Replies: 1
Views: 787
Posted By kaa
Sounds similar to an issue I'm having over here:...

Sounds similar to an issue I'm having over here: https://vansairforce.com/community/showthread.php?t=184389. Basically these cylinders are running lean when you throttle down, so an intake leak...
Forum: Traditional Aircraft Engines 07-12-2020, 03:41 PM
Replies: 31
Views: 7,755
Posted By kaa
I repaired a few small problems in the baffles,...

I repaired a few small problems in the baffles, and it took ~10 degrees off the max CHT in climb to pattern. Still the maximum is at 440, which is too high for comfort. Today's flight:...
Forum: Traditional Aircraft Engines 07-07-2020, 09:02 AM
Replies: 31
Views: 7,755
Posted By kaa
Thanks everyone for suggestions, appreciate...

Thanks everyone for suggestions, appreciate it.

I'm pretty sure the thermocouple type is set up correctly. Before the engine start all temperature sensors read ambient, as expected.

Here is some...
Forum: Traditional Aircraft Engines 07-06-2020, 11:44 PM
Replies: 31
Views: 7,755
Posted By kaa
Thanks. I'll try replacing the carb to oil pan...

Thanks. I'll try replacing the carb to oil pan gasket then.
Forum: Traditional Aircraft Engines 07-06-2020, 11:00 PM
Replies: 31
Views: 7,755
Posted By kaa
All holes in cylinders are plugged. MP doesn't...

All holes in cylinders are plugged. MP doesn't seem to be leaking (the indications are normal). What would be a good way to test it?

I also see a bit of oil potentially coming out from between the...
Forum: Traditional Aircraft Engines 07-06-2020, 10:34 PM
Replies: 31
Views: 7,755
Posted By kaa
High CHTs

Hi all,

I finally finished my panel upgrade to G3XT and started flying (yay!). Unfortunately, I'm seeing very high CHTs after takeoff, especially on cylinder 4 - by the pattern altitude it reaches...
Forum: Glass Cockpit 07-05-2020, 10:17 PM
Replies: 3
Views: 930
Posted By kaa
Perfect, thank you both!

Perfect, thank you both!
Forum: Glass Cockpit 07-05-2020, 07:03 PM
Replies: 3
Views: 930
Posted By kaa
G3X fuel quantity calibration - is it possible to swap left and right tanks?

Long story short, I didn't check that I routed the fuel sender wires correctly, so left and right indications are swapped now. I already calibrated them, so I'm wondering if

it is possible to just...
Forum: Traditional Aircraft Engines 07-01-2020, 03:54 PM
Replies: 1
Views: 668
Posted By kaa
Found this:...

Found this: https://mooneyspace.com/topic/17652-prop-governor-small-oil-leak-question/?tab=comments#comment-475451. It has a service instruction inside. At least it doesn't seem to be too complicated...
Forum: Traditional Aircraft Engines 06-30-2020, 10:34 PM
Replies: 1
Views: 668
Posted By kaa
McCauley governor oil leak / does anyone have a manual?

Hi all,

I just noticed an oil leak on my governor around something that I think is an adjustment screw (see picture). The governor is McCauley DC290D1. I couldn't find any manuals online, would...
Forum: RV General Discussion/News 06-29-2020, 11:12 PM
Replies: 1
Views: 644
Posted By kaa
How is it wired? To the mag or an electic mag...

How is it wired? To the mag or an electic mag (which model btw)? This is what the manual says:
Forum: California 06-17-2020, 11:50 PM
Replies: 2
Views: 634
Posted By kaa
Scales rental in the Bay Area

Hi all,

Is there anywhere/anyone I could rent scales from in the Bay Area (I'm at KPAO)? I'm finishing up my panel upgrade and would like to weigh the airplane. The backup plan is to go to one of...
Forum: Traditional Aircraft Engines 05-06-2020, 12:38 PM
Replies: 11
Views: 1,523
Posted By kaa
The rivet idea worked pretty well. I got a 3/16...

The rivet idea worked pretty well. I got a 3/16 stainless steel rivet from McMaster and cut the flared bit off. It fits pretty well, so I hope it'll seal...
Forum: Traditional Aircraft Engines 05-04-2020, 08:29 PM
Replies: 11
Views: 1,523
Posted By kaa
Yes, but where does the length come into play? I...

Yes, but where does the length come into play? I don't understand the physics of the situation. Plus, if a splice connector like OLC-2 is used, then no dissimilar metal joint is ever formed, so it...
Forum: Traditional Aircraft Engines 05-04-2020, 07:45 PM
Replies: 11
Views: 1,523
Posted By kaa
I have a hard time imagining that moving a...

I have a hard time imagining that moving a thermocouple a few millimeters out of the exhaust pipe will have a significant effect, given how EGTs are used. Plus these thermocouples accommodate...
Forum: Traditional Aircraft Engines 05-03-2020, 09:28 PM
Replies: 11
Views: 1,523
Posted By kaa
Thanks everyone for suggestions, I appreciate the...

Thanks everyone for suggestions, I appreciate the help!

I was thinking about drilling out a flat head screw, but a blind rivet might work even better. I also found these vented screws at McMaster,...
Forum: Traditional Aircraft Engines 05-02-2020, 10:25 PM
Replies: 11
Views: 1,523
Posted By kaa
Thanks, missed that thread. I'm not trying to...

Thanks, missed that thread.

I'm not trying to relocate the probes though, and I worry that if I reuse existing holes, the new Alcor probes will leak.
Forum: RV-7/7A 05-02-2020, 09:23 PM
Replies: 3
Views: 1,078
Posted By kaa
Thanks everyone for suggestions! Just to close...

Thanks everyone for suggestions! Just to close this out, I checked with Vans and did pretty much what's on the picture in the original post.
Forum: Traditional Aircraft Engines 05-02-2020, 09:18 PM
Replies: 11
Views: 1,523
Posted By kaa
EGT probe installation problem: oversize holes

Hi all,

I'm upgrading to a Garmin panel and hit a snag with the EGT probes. The probes supplied with Garmin equipment call for #31 hole, and the old probes I have were installed in a 3/16 hole. I'm...
Forum: RV-7/7A 02-22-2020, 04:34 PM
Replies: 3
Views: 1,078
Posted By kaa
Attaching wire clamps to F713 and F719

Hi all,

I'm upgrading my panel and I'm a bit stuck on routing wires from the subpanel structure into the main spar box. The builder of the plane routed the wires down the side of the foot well (down...
Forum: RV-7/7A 11-16-2019, 10:20 PM
Replies: 4
Views: 1,447
Posted By kaa
Thanks everyone for the tips, appreciate it. I've...

Thanks everyone for the tips, appreciate it. I've been reading 43.13 and other stuff too.

I removed the firewall insulation since I took the photos, thanks.

Scott, could you clarify your comment...
Forum: RV-7/7A 11-10-2019, 11:06 PM
Replies: 4
Views: 1,447
Posted By kaa
Subpanel repair question

Hi all,

So, last week my vacuum pump failed and I took it as a hint that I should finally start my panel upgrade. The plan is to go from steam gauges to G3X. Now, I haven't built an airplane, and...
Forum: RV General Discussion/News 07-03-2019, 04:30 PM
Replies: 12
Views: 5,890
Posted By kaa
Looks like an interesting replacement to the...

Looks like an interesting replacement to the EiCommander. It would be nice to have a digital output with functionality similar to EiCommander's advance divergence warning. Is it in the plans by any...
Forum: RV General Discussion/News 06-16-2019, 10:57 AM
Replies: 2
Views: 886
Posted By kaa
How corrosion inhibitors work

Hi all,

Not directly RV related, but I found it interesting: https://www.youtube.com/watch?v=VpRrP3sqQLw. A guy explains how corrosion inhibitor additives work in oil, synthesizes and tests one in...
Forum: California 05-08-2019, 03:28 PM
Replies: 5
Views: 1,240
Posted By kaa
I never had problems with storing basic tools and...

I never had problems with storing basic tools and materials at the hangar when I was there. I also some pretty cluttered hangars there. Power probably depends on where the hangar is located, but what...
Forum: Safety 04-30-2019, 12:26 PM
Replies: 26
Views: 4,098
Posted By kaa
Thanks. What kind of bus fault are we talking...

Thanks.

What kind of bus fault are we talking about here? The only thing I can think of is that the main power wire from the master solenoid to the bus fails somehow, or the fuse block fails. How...
Forum: Safety 04-30-2019, 11:30 AM
Replies: 26
Views: 4,098
Posted By kaa
Thanks everyone for comments. Looks like I'll...

Thanks everyone for comments. Looks like I'll have enough capacity of the backup alternator to merge both buses. I also realized that I already have an essentially backup contactor - right now it's...
Forum: Safety 04-24-2019, 11:08 AM
Replies: 26
Views: 4,098
Posted By kaa
Thanks everyone for comments! Yes, this was my...

Thanks everyone for comments!

Yes, this was my concern. Is there any downside to connecting the backup field alternator to the e-bus, and its output to the battery side of master contactor? Like...
Forum: Glass Cockpit 04-24-2019, 11:04 AM
Replies: 4
Views: 698
Posted By kaa
Thanks everyone, and thanks Ed for pictures....

Thanks everyone, and thanks Ed for pictures. Makes sense now.
Forum: Glass Cockpit 04-22-2019, 12:22 PM
Replies: 4
Views: 698
Posted By kaa
GDU460 fit question and general panel feedback request

Hi all,

I'm planning an upgrade from steam gauge panel to G3X touch and would like some feedback on the panel layout I came up with. The screenshot from Fusion 360 is below, but it's basically...
Forum: Safety 04-01-2019, 10:52 PM
Replies: 26
Views: 4,098
Posted By kaa
But my point is that in Z-12 master contactor...

But my point is that in Z-12 master contactor failure can take out both alternators via OV protection, leaving just the battery. This is not catastrophic, but not ideal either.
Forum: Safety 04-01-2019, 05:03 PM
Replies: 26
Views: 4,098
Posted By kaa
Both alternators are not used at the same time (I...

Both alternators are not used at the same time (I linked the Z12 schematics in my original post). However the B&C backup alternator control will turn on backup alternator field every time bug voltage...
Forum: Safety 04-01-2019, 03:14 PM
Replies: 26
Views: 4,098
Posted By kaa
Dual alternator setup and master contactor failure.

Hi,

I'm planning an upgrade to an all-glass setup, so I've been studying electrical systems in general and AeroElectric connection in general. I think I'll go with Z-12 (dual alternator, single...
Forum: Electrical Systems 03-29-2019, 12:23 PM
Replies: 92
Views: 32,209
Posted By kaa
Sorry for reviving this old thread. I'm planning...

Sorry for reviving this old thread. I'm planning to redo my electrical system and I remember Dan's diagrams were very informative when I first read this thread. Does anyone have them saved?

Thanks.
Forum: Traditional Aircraft Engines 02-22-2019, 02:39 PM
Replies: 4
Views: 1,138
Posted By kaa
I wonder if there is an engineering reason for...

I wonder if there is an engineering reason for this, or it's just a convention? The only possible explanation I have is that the filter media is supported by the tube on the inside and can better...
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