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Search: Posts Made By: jdeas
Forum: Electrical Systems 05-25-2022, 11:16 AM
Replies: 16
Views: 1,170
Posted By jdeas
A different viewpoint?

I was under the impression you were considering making a unique version of an existing device. (relay with low hold current). I see two different types of builder on this forum, one wants to fly...
Forum: Electrical Systems 05-24-2022, 01:19 PM
Replies: 16
Views: 1,170
Posted By jdeas
Misspent creative juices

Interesting thread, when I built, I used a solid state relay thinking how wonderful it would be to reduce the current. Ran one for 5+ years problem free. What I failed to consider was the whole...
Forum: Traditional Aircraft Engines 04-01-2022, 11:47 AM
Replies: 11
Views: 974
Posted By jdeas
As suspected

OK, no one spoke of Teflon tape or paste for these coarse threads which is what I expected from past experience. Thought I had tried fuel lube initially (10 years ago) but the results are lost to me.
Forum: Traditional Aircraft Engines 03-31-2022, 04:13 PM
Replies: 11
Views: 974
Posted By jdeas
Sealing sump plugs

What are mechanics using to seal the 1/2" pipe plugs in the sump? Twice I tried Teflon paste without getting a good seal.

In plumbing use, RectorSeal #5 on course thread pipes always gives me...
Forum: RV Building Tips/Techniques 03-12-2022, 07:56 AM
Replies: 5
Views: 604
Posted By jdeas
Options

I know Vans carries at least three variations for vertical alone. Have you contacted their support to get a list of the variations? I am fixing a homebrew one right now that was so loose I ended up...
Forum: RV-6/6A 02-16-2022, 05:18 PM
Replies: 3
Views: 447
Posted By jdeas
Colin, you photo do not attached but with the...

Colin, you photo do not attached but with the battery location it may not have mattered.
Dan, that photo is what I was expecting. Looks like a much longer cable run than what is currently in this AC....
Forum: RV-6/6A 02-15-2022, 05:44 AM
Replies: 3
Views: 447
Posted By jdeas
Mixture cable routing O-320 with a MA-3A carb

I am replacing a custom control bracket on an older RV6-A with Van's VA-149-320-PC bracket due to some issues with securing the control cable end points. Installing the new bracket, the mixture...
Forum: RV-6/6A 01-16-2022, 08:51 PM
Replies: 20
Views: 2,840
Posted By jdeas
Inspections

While this would make alignment easier it requires a bit more than drilling a hole. Strictly speaking, I would have to remove the bell crank to debur prep and prime the parts. Seems like a lot of...
Forum: RV-6/6A 01-15-2022, 08:07 PM
Replies: 20
Views: 2,840
Posted By jdeas
just what i needed

Thanks Gasman!
That should allow me to make some progress this weekend.
Forum: Virtual Hangar 01-15-2022, 08:01 PM
Replies: 10
Views: 3,687
Posted By jdeas
colors

Yes, the blue and silver accents are metallic. Gives the dark blue a lot of depth
Forum: Virtual Hangar 01-15-2022, 12:04 PM
Replies: 10
Views: 3,687
Posted By jdeas
Smile PPG

IM612 Dark Blue.
L21620 R=9
Forum: RV-6/6A 01-15-2022, 11:43 AM
Replies: 20
Views: 2,840
Posted By jdeas
More than one version

Appreciate the reply but these bellcranks do not have alignment holes. The kit was completed in 98' so it may just be an older setup.
Forum: RV-6/6A 01-15-2022, 10:09 AM
Replies: 20
Views: 2,840
Posted By jdeas
Mel, Appreciate the alert, I am seeing about .2"...

Mel,
Appreciate the alert, I am seeing about .2" difference on the bell crank position when the controls are in trail. Given the asymmetrical nature of the control throw I flagged it for...
Forum: RV-6/6A 01-15-2022, 09:17 AM
Replies: 20
Views: 2,840
Posted By jdeas
proceedure to adjust

I do not have access to the manual this weekend but would appreciate if someone could share the aileron adjustment procedure. While inspecting an older RV6 it appears the control bell-cranks are not...
Forum: Virtual Hangar 01-14-2022, 02:47 PM
Replies: 10
Views: 3,687
Posted By jdeas
I'll grab the code for you this week.

I'll grab the code for you this week.
Forum: Virtual Hangar 01-12-2022, 10:21 AM
Replies: 10
Views: 3,687
Posted By jdeas
RV-7 N314SY Jim Deas

No more polished aluminum!
Forum: Traditional Aircraft Engines 07-25-2021, 06:44 AM
Replies: 10
Views: 2,386
Posted By jdeas
MAP line

Don't forget to include the MAP sensor line in your induction leak testing, it too can create enough of a leak to cause issues only at idle.
I also would suggest replacing the intake gaskets. I have...
Forum: RV-14 03-19-2021, 08:27 PM
Replies: 3
Views: 1,508
Posted By jdeas
mixed bag

The good:
Looks cool standing still, climbs better than most.
The bad:
Watch your CG shift, higher rebuild cost, just a touch slower in level flight


That said, I love mine.
Forum: RV General Discussion/News 03-16-2021, 03:59 PM
Replies: 1
Views: 522
Posted By jdeas
West working well for seven years

I had the same concern but this plenum is now seven years old and no signs of sag. Lives in SoCal so it does get some heat on the ramp!
Two layers glass BID per side with Aero-mat (ACP composites)...
Forum: Electrical Systems 03-11-2021, 04:35 PM
Replies: 73
Views: 18,919
Posted By jdeas
2nd

Replaced a regulator board once when one of the three stator windings broke. Didn't fix it and didn't see the real problem until the 2nd wire broke as well killing all output
Forum: Traditional Aircraft Engines 02-07-2021, 07:20 AM
Replies: 28
Views: 4,036
Posted By jdeas
It does..

There are times in the cycle when both valves are off their seat at the same time in a 4-stroke engine. Check the valve positions between exhaust and intake strokes and you will see the overlap.
Forum: Glass Cockpit 11-04-2020, 07:12 PM
Replies: 3
Views: 1,211
Posted By jdeas
AFS Aviation/Obstacles Database

Today I tried to download the new DB (due tomorrow) and it's not on their website. Does anyone know the support plan moving forward? Is there a transition to the Dynon website that I missed? Is this...
Forum: RV General Discussion/News 10-14-2020, 02:15 PM
Replies: 4
Views: 2,072
Posted By jdeas
Santa Ynez is nearby

I would suggest contacting EAA 491 in Santa Ynez
http://www.eaa491.org/contact-us/
That chapter is close to Santa Maria and is very active with RV aircraft.
Forum: Traditional Aircraft Engines 08-17-2020, 11:01 PM
Replies: 14
Views: 4,550
Posted By jdeas
Can not re-create

To be safe I changed the oil filter and cut the old one looking for metal. Nothing was found and after speaking with a couple of local shops, one felt the oil regulator must of not seated properly...
Forum: Traditional Aircraft Engines 08-12-2020, 09:10 PM
Replies: 14
Views: 4,550
Posted By jdeas
Testing

Points well taken, the oil was at 5.5 qt, lower than I normally run , nose up climb and hit when the vernatherm would have been transitioning to the oil cooler. The presure regulator was also...
Forum: Traditional Aircraft Engines 08-10-2020, 08:17 PM
Replies: 14
Views: 4,550
Posted By jdeas
Low PSI

Guys,
Thanks for the input. This is a one time anomaly after almost 500hrs of use. The engine is far from new so no idea how far the ball is off the seat at 2400.


A point of reference, Switched to...
Forum: Traditional Aircraft Engines 08-09-2020, 11:56 AM
Replies: 14
Views: 4,550
Posted By jdeas
Sudden temporary change in oil pressure

On a flight last week I had a -19psi change in my oil pressure, the majority of change in 6 seconds!

No alarms sounded as the oil pressure was still in range but picked up on it and made an...
Forum: Traditional Aircraft Engines 07-20-2020, 04:21 PM
Replies: 3
Views: 1,461
Posted By jdeas
Impulse trigger

Plugs out!


If just doing a quick sanity check, the impulse should snap right at or just past TDC (when moved slowly through forward rotation).


Right after the impulse triggers reverse engine...
Forum: Traditional Aircraft Engines 07-10-2020, 03:28 PM
Replies: 18
Views: 4,562
Posted By jdeas
Open leg

The diode is not the only possible issue. Visually check the leads from the Stator coil. You should see three solid copper lines. Due to vibration I have seen these break. If one of the three lines...
Forum: Traditional Aircraft Engines 02-25-2020, 10:23 AM
Replies: 11
Views: 2,891
Posted By jdeas
Time on engine

Is this a new or recently rebuilt engine? The sealants can spike the silicon readings for the first few oil changes.
Forum: Electrical Systems 10-17-2019, 01:23 PM
Replies: 8
Views: 2,042
Posted By jdeas
PP alternator stator windings

There was a problem with some of these units a few years back with vibration breaking the stator lines. When the first one goes you get some weird voltage and noise issues due to loosing a phase....
Forum: Electrical Systems 08-11-2019, 06:06 PM
Replies: 13
Views: 1,984
Posted By jdeas
Failure modes

The primary function is always to protect the wire (harness). Most efuse devices have the ability give you current value for free. Having that value allows you to better quantify and quickly...
Forum: Electrical Systems 08-11-2019, 08:52 AM
Replies: 13
Views: 1,984
Posted By jdeas
Done that. Monolithic vs distributed power systems.

I see value in active power monitoring and gave a paper at Osh on this back in 2009. My approach was to create a distributed power system mitigating some of the single point failures that monolithic...
Forum: Traditional Aircraft Engines 06-19-2019, 02:44 PM
Replies: 4
Views: 1,348
Posted By jdeas
Update and fix

I noticed cold flow around the induction pipe hose clamps. Every one of those induction clamps were just a bit loose and could be turned about 1/2 to 1 rotation.
Seems that was the problem. The hot...
Forum: Traditional Aircraft Engines 06-15-2019, 08:28 AM
Replies: 4
Views: 1,348
Posted By jdeas
Induction leak only when hot?

Last week I started fighting high EGT readings at low rpms on my #3 cylinder. What is interesting was the EGT change happens very quickly below 1400 rpm and only after a flight when the engine is...
Forum: Traditional Aircraft Engines 05-23-2019, 01:18 PM
Replies: 7
Views: 2,124
Posted By jdeas
Short and long term items

I did the same, purchased one sitting for over 11 years with the idea of using it only as a build shell then having it rebuilt. This one was in a dry climate for 11+ and by the ocean for another 3. I...
Forum: RV General Discussion/News 05-17-2019, 04:07 PM
Replies: 21
Views: 2,521
Posted By jdeas
Windings

Had the same problem as Vern, if one of the stator lines break the result is somewhat unpredictable. I think it's possible this also causes a noisy DC bus, one so dirty that the EFIS may not be able...
Forum: Traditional Aircraft Engines 04-16-2019, 12:22 PM
Replies: 0
Views: 711
Posted By jdeas
Updraft FAB options

Seems like every year I end up fixing wear or cracks in my FAB. For the last three years I have been waiting for Sam James to start manufacturing the conical filter parts again but with the new...
Forum: California 03-03-2019, 09:09 AM
Replies: 22
Views: 8,458
Posted By jdeas
Love to see your project!

+2 if LA weather permits
Forum: RV General Discussion/News 02-25-2019, 01:49 PM
Replies: 12
Views: 2,961
Posted By jdeas
Induction fod?

Check the FI intake. If any FOD is blocking a portion of the throat you will get wild swings in metering of the fuel regardless of the mixture setting.
I would not fly until that intake path has been...
Forum: RV-14 10-02-2018, 10:25 PM
Replies: 11
Views: 4,774
Posted By jdeas
Need a local return

I had the same problem until I isolated the ground return. Make sure every amp of power flowing past the mag returns on a ground line directly against the sending wire pack.

I went from over 10deg...
Forum: Midwest 08-29-2018, 03:27 PM
Replies: 15
Views: 2,395
Posted By jdeas
One more for Sundance

Good bunch of builders and great service.
Forum: California 08-08-2018, 04:19 PM
Replies: 30
Views: 6,627
Posted By jdeas
Reserved N number

I had them send me a bill the same year I reserved my N number, years before completed. In the end I did first flight in November and they registered it the following year.
Don't let their simplistic...
Forum: RV General Discussion/News 07-12-2018, 03:43 PM
Replies: 6
Views: 1,408
Posted By jdeas
MOA

Granted it's too high to matter but when I see charts with different moa boundaries on a site I have depended on I would like to know why.


AZ, I see nothing in the website for All charts, what am I...
Forum: RV General Discussion/News 07-12-2018, 11:58 AM
Replies: 6
Views: 1,408
Posted By jdeas
Ripon airspace and MOA heading for Osh

I noticed that Ripon is depicted under the VOL EAST MOA in Skyvector and AOPA flight planner but not in Weathermeister. All are well known, anyone know why?
Forum: Glass Cockpit 06-26-2018, 03:42 PM
Replies: 24
Views: 10,371
Posted By jdeas
CANbus

The CAN bus is able and then some, most of my aircraft's body systems are on a twin CANbus including a few serial streams. Outside of AIRINC 825 and the older CANaero standards there isn't much...
Forum: RV General Discussion/News 06-25-2018, 09:00 AM
Replies: 8
Views: 2,167
Posted By jdeas
Congrats!

Good to hear! Let me know if you need a second pair of eyes while testing at WHP. Also have some good contacts in Ventura if needed :)
Forum: Traditional Aircraft Engines 06-16-2018, 02:46 PM
Replies: 4
Views: 1,643
Posted By jdeas
Slight oil bypass seat damage

At 9 o'clock there is a possible ridge but would this degree of damage really make a measurable difference in hot oil...
Forum: Traditional Aircraft Engines 06-15-2018, 10:31 AM
Replies: 4
Views: 1,643
Posted By jdeas
Oil pressure was on a VDO gauge but last week I...

Oil pressure was on a VDO gauge but last week I changed over to the better Kavlico sensor. The Kavlico reads a few pounds lower than my old VDO but the 30psi differential is seen with both. It would...
Forum: Traditional Aircraft Engines 06-15-2018, 08:39 AM
Replies: 4
Views: 1,643
Posted By jdeas
Expected oil pressure regulation IO-360

I am witnessing oil pressure variation from warm to hot that exceed the variation seen on other like engines around my airport.

IO-360-B1B
Looking at the range 130F/89psi to 210F/68psi @ 2500rpm...
Forum: RV-7/7A 04-12-2018, 08:07 AM
Replies: 14
Views: 5,265
Posted By jdeas
Very happy with mine

In my case I can out climb but have lower top speed than other RV7 aircraft I have flown with. This is in line with much of what I read on this forum as well.
We are taking a knot possibly two at low...
Forum: Traditional Aircraft Engines 04-04-2018, 07:45 PM
Replies: 2
Views: 1,230
Posted By jdeas
Indicator of blow by and chrome cylinders

Over the last 50hrs I have graphed a rise in CHT's on one of my cylinders causing me to look for problems in my plenum and instrumentation. The change was not outrageous but could be be described as...
Forum: Electrical Systems 04-04-2018, 07:21 PM
Replies: 13
Views: 1,733
Posted By jdeas
Wonder if he would take burnt out parts as proof?

I had a starter still engaged when the engine kicked back just a few months ago. Massive negative spike took out several items that were not protected well enough.
That was after 4 years and...
Forum: Electrical Systems 04-04-2018, 08:11 AM
Replies: 13
Views: 1,733
Posted By jdeas
Check out this link on electrical protection

Automotive application notes are a very good reference. Each advancement FWF brings us even closer to parity with the research done for autos. The section 1 of this PDF gives you an idea of what...
Forum: Electrical Systems 02-14-2018, 12:52 PM
Replies: 24
Views: 3,538
Posted By jdeas
Search automotive power supply examples

Also consider a diode for the power in. Many regulators react badly to a hard negative voltage spike.

Can share some some of these from my own CANbus trim controllers by PM if you like
Forum: RV General Discussion/News 02-08-2018, 01:04 PM
Replies: 37
Views: 21,120
Posted By jdeas
Alt drive

Not implying anything is wrong with the design. Just a different view on a fail-safe lift and admittedly a product of my own paranoia. The weight is insignificant but a absolute drop would not be. I...
Forum: RV General Discussion/News 02-08-2018, 12:37 PM
Replies: 37
Views: 21,120
Posted By jdeas
Fear of falling vs complexity

Anyone doing this with a lead screw drive or cable with a release brake?
Forum: Places To Fly...Things to See...Things to Eat 01-04-2018, 11:37 AM
Replies: 11
Views: 7,222
Posted By jdeas
Vandenberg AFB

10 miles out at 5K I watched a launch out of the coastal fog then disappear through a high layer. A clear sky would have given a better result but in the end, hearing my engine drone on instead of...
Forum: RV Building Tips/Techniques 11-13-2017, 03:01 PM
Replies: 49
Views: 21,513
Posted By jdeas
wet dog startup shakes

I installed the standard baffle kit and trimmed to std length (I think that's 1/2" below cowl) Once done my plenum attached flush with the top of the baffles leaving 1/2" max clearance. As for the...
Forum: RV Building Tips/Techniques 11-13-2017, 11:39 AM
Replies: 49
Views: 21,513
Posted By jdeas
relative motion

I have to wonder what that relative motion would do to the inside of the cowl and membrane long term. Lots of vibration and dirt FWF to deal with.
I think Dan's silicone intakes have a ridged...
Forum: RV Building Tips/Techniques 11-12-2017, 08:00 AM
Replies: 49
Views: 21,513
Posted By jdeas
250 hrs

4 years in Socal. including some really hot summer flying. There has been no deformation of the structure. Having done one, I'm sure I could improve if I did it again but there is no reason. The West...
Forum: Electrical Systems 11-09-2017, 03:57 PM
Replies: 65
Views: 24,669
Posted By jdeas
Voltage regulation

Also not good for the avionics. The PP alt has wild voltage fluctuations when there is no battery to load it!
Forum: RV General Discussion/News 11-09-2017, 07:47 AM
Replies: 41
Views: 8,356
Posted By jdeas
3 blade at 17.5k

I have some plans with a flying buddy to retest with his 2 blade Hartz but I did a quick run last week to the top of VFR (RV-7 IO-360 3-blade MT no passenger)

16k5 to 17k5 vspeed 320fps @ 110...
Forum: Traditional Aircraft Engines 09-07-2017, 12:50 PM
Replies: 6
Views: 1,919
Posted By jdeas
CHT filtering

I felt it was the probe but that was a longer LP filter than I had expected on the sensor. I'll check the wiring and connections.

Thanks!
JD
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