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Search: Posts Made By: bjdecker
Forum: Traditional Aircraft Engines Yesterday, 06:59 AM
Replies: 8
Views: 544
Posted By bjdecker
Service Instruction

Here's the link to the Lycoming SI: https://www.lycoming.com/content/service-instruction-no-1275c

...here's the excerpt that describes the proper clocking of the injector:

LW-18265: In normally...
Forum: Traditional Aircraft Engines 10-01-2022, 07:38 AM
Replies: 8
Views: 544
Posted By bjdecker
Fuel Stain around Injector #2...

...and a possible solution...

On the RV-7s with IO-360-A1B6 (200HP/Angle Valve) that I've built and operated, I've always seen a residual blue stain around the injector in the #2 cylinder (Pilot...
Forum: RV General Discussion/News 09-24-2022, 05:21 PM
Replies: 8
Views: 569
Posted By bjdecker
My bad -- yes, the S15. Yes, the instructions...

My bad -- yes, the S15.

Yes, the instructions are here -- https://www.youtube.com/watch?app=desktop&v=YvsFN3PMRGE&ab_channel=K%26PEngineering
Forum: RV General Discussion/News 09-24-2022, 04:30 PM
Replies: 8
Views: 569
Posted By bjdecker
Lifetime oil filter

Switch to a reusable/lifetime filter -- see https://kandpengineering.com/products/

You will need the SF15 with the 3/4-3/4-16 nipple.

B
Forum: Traditional Aircraft Engines 09-23-2022, 03:09 PM
Replies: 14
Views: 774
Posted By bjdecker
Leakage from the Crankcase Nose Seal is usually a...

Leakage from the Crankcase Nose Seal is usually a messy affair with engine oil dribbling out and down around the inside of the cowl, the top and bottom of the case, etc. etc.

Prop seal leakage is...
Forum: Traditional Aircraft Engines 09-23-2022, 02:06 PM
Replies: 8
Views: 411
Posted By bjdecker
https://en.wikipedia.org/wiki/Blind_men_and_an_ele...

https://en.wikipedia.org/wiki/Blind_men_and_an_elephant

...have to agree with Larry though, the mechanics of the pump and the physics of fluid dynamics preclude any mechanical issue yielding the...
Forum: Traditional Aircraft Engines 09-23-2022, 09:41 AM
Replies: 8
Views: 411
Posted By bjdecker
Rick, I would look very carefully at the wiring...

Rick,

I would look very carefully at the wiring to and/or the sensor itself. Got a spare?

B
Forum: Fuel Injection Systems 09-21-2022, 06:01 AM
Replies: 10
Views: 733
Posted By bjdecker
Dan, I mean no insult, but have you reviewed the...

Dan,

I mean no insult, but have you reviewed the installation and setup documentation yet? It can be found here --...
Forum: VAF Classifieds (posts in here deleted after 30 days) 09-18-2022, 02:36 PM
Replies: 5
Views: 747
Posted By bjdecker
SOLD

All 6 have been sold.

Thanks all.
Forum: RV-7/7A 09-18-2022, 01:13 PM
Replies: 6
Views: 680
Posted By bjdecker
As an aside - the stack up shown in View F-F on...

As an aside - the stack up shown in View F-F on DWG C2 isn't quite right. For best results, add another AN960-516L under the socket head or between the AN960-516 and the flange (increase the...
Forum: Electrical Systems 09-18-2022, 06:06 AM
Replies: 25
Views: 2,810
Posted By bjdecker
Determine Root Cause

David,

Can you post some pictures of your starter, the wiring at the starter, the wiring from/to the engine crankcase, the wiring at the master relay, starter relay (CH 24021 or equivalent).

Also,...
Forum: RV-7/7A 09-17-2022, 05:49 PM
Replies: 6
Views: 680
Posted By bjdecker
Ditto

I received two sets (four total) of the socket head 5/16-20 1-1/2 screws with 1/4" coarse threaded nuts. Don't know why or how...

DWG C2 is the only place I could find a call out for them.
Forum: VAF Classifieds (posts in here deleted after 30 days) 09-17-2022, 05:09 PM
Replies: 5
Views: 747
Posted By bjdecker
FS: CHAMPION OIL FILTER 48110-1

For Sale -- 6 Champion Oil Filters, Model 48110-1.

I am asking $40/ea plus shipping, or all 6 for $220 plus shipping. CONUS only.

PM for payment & shipping details.

Cheers!
Forum: Primers 09-13-2022, 01:17 PM
Replies: 9
Views: 1,356
Posted By bjdecker
Do not use COMET or AJAX, those product...

Do not use COMET or AJAX, those product contain/may contain chlorine bleach which will cause corrosion of aluminum. There was a propellor failure a few years back attributed to corrosion caused by...
Forum: RV Ongoing Maintenance Issues 09-10-2022, 07:16 AM
Replies: 19
Views: 1,241
Posted By bjdecker
Hey Mickey -- what drove you to use DOT5.1 -vs-...

Hey Mickey -- what drove you to use DOT5.1 -vs- MIL-PRF-83282 or other? Availability or ?
Forum: RV Ongoing Maintenance Issues 09-09-2022, 11:06 AM
Replies: 19
Views: 1,241
Posted By bjdecker
Sealant

Check all those NPT (or ANPT) fittings for the correct sealant.

Do not use EZ TURN - FUEL LUBE on NPT fittings (kicking myself repeatedly). It is an anti-seize/lubricant compound and will NOT seal...
Forum: RV-14 09-08-2022, 12:20 PM
Replies: 3
Views: 469
Posted By bjdecker
https://www.lycoming.com/sites/default/files/IO-39...

https://www.lycoming.com/sites/default/files/IO-390-C%20Parts%20Catalog%20PC-IO-390-C.pdf

See page 54, Figure 24 for the stack...
Forum: RV Ongoing Maintenance Issues 09-08-2022, 12:03 PM
Replies: 3
Views: 877
Posted By bjdecker
Pin?

Bill,

I've seen cases where the pivot pin becomes dislodged and falls out. Find pin, apply a little super glue (pro seal??) to the end and insert it back into the hole that's drilled into the center...
Forum: RV Ongoing Maintenance Issues 09-07-2022, 07:59 AM
Replies: 10
Views: 874
Posted By bjdecker
Alternator Longevity -- Care & Feeding...

The following has been gleaned from numerous threads and first hand experience:

1. Make sure the belt is not TOO tight -- the pulleys in the system will expand with heat and increase the tension...
Forum: RV General Discussion/News 09-06-2022, 07:56 AM
Replies: 36
Views: 4,200
Posted By bjdecker
I parked my airplane in a bad neighborhood...

I parked my airplane in a bad neighborhood :)


Condition Inspection continues...
Forum: RV-14 09-04-2022, 05:31 PM
Replies: 12
Views: 1,306
Posted By bjdecker
Custom Tool Time

Grind down a TATCO THS101 no hole squeezer yoke...You'll use it plenty of times.
Forum: Electrical Systems 09-03-2022, 02:39 PM
Replies: 11
Views: 886
Posted By bjdecker
gamma match...

gamma match...
Forum: RV Ongoing Maintenance Issues 09-01-2022, 05:45 PM
Replies: 24
Views: 2,946
Posted By bjdecker
New & Improved Breather

As part of the Condition Inspection work, I decided to "fix" the original Van's design.

I removed the NAPA radiator elbow hose section & the Lycoming 71140 breather nipple. In its place, I...
Forum: Electrical Systems 09-01-2022, 05:30 PM
Replies: 15
Views: 2,243
Posted By bjdecker
A data point...

I was speaking to my friend about your issue, and solution.

He indicated that he also had experienced a number of false triggers with the ACK ELT-04. He called ACK, described the issue and they...
Forum: Reviews 08-31-2022, 01:03 PM
Replies: 29
Views: 1,778
Posted By bjdecker
Avionics Systems

I have had two very good experiences with David Buckwalter & team at Avionics Systems in Leesburg, VA.

David was extremely patient, asked lots of questions about my instrumentation choices and usage...
Forum: Electrical Systems 08-30-2022, 09:00 AM
Replies: 12
Views: 1,183
Posted By bjdecker
No Click or Thunk?

Like others, I experienced the "bad" Starter Solenoid (the big one that rides shotgun on the Starter) syndrome. It seemed to happen more when hot, and I could hear the "clunk" of the Starter...
Forum: RV-7/7A 08-30-2022, 07:47 AM
Replies: 2
Views: 457
Posted By bjdecker
Made a tool...

I used a sacrificial pair of vice grips. Smoothed and radiused the jaw edges and removed the serrations.
Forum: Electrical Systems 08-29-2022, 04:21 PM
Replies: 14
Views: 1,806
Posted By bjdecker
"It Depends" Some PM motor/pump designs include...

"It Depends"

Some PM motor/pump designs include a snubber diode, some do not (just like relays, solenoids) -- it's cheap insurance to include one...
Forum: RV-7/7A 08-29-2022, 12:02 PM
Replies: 14
Views: 1,308
Posted By bjdecker
Gear legs and wheel pants faired up yet?

Gear legs and wheel pants faired up yet?
Forum: RV-12/RV-12iS 08-28-2022, 02:21 PM
Replies: 11
Views: 1,808
Posted By bjdecker
Every time I use it I think of...

Every time I use it I think of...
Forum: RV General Discussion/News 08-28-2022, 02:04 PM
Replies: 27
Views: 4,051
Posted By bjdecker
$100 Breakfast Burrito

I went flying with my better half to Brenham, TX (11R) to meet with some fellow aviation conspirators.

She took this pic when we were turning base into Georgetown, TX (KGTU).

Last flight before...
Forum: RV General Discussion/News 08-25-2022, 04:44 PM
Replies: 14
Views: 906
Posted By bjdecker
SiliconE... Specifically Acetoxysilane-based RTV...

SiliconE...

Specifically Acetoxysilane-based RTV which releases acetic acid (aka Vinegar) during the curing process.
Forum: Electrical Systems 08-25-2022, 04:38 PM
Replies: 14
Views: 1,806
Posted By bjdecker
Ground it locally. AND Put a diode across the...

Ground it locally.

AND

Put a diode across the terminals on the motor just like you do for the starter relay, master relay. Your boost pump switch will thank you :)
Forum: RV General Discussion/News 08-23-2022, 01:31 PM
Replies: 14
Views: 906
Posted By bjdecker
I used Permetex Ultra Blue. "Sensor safe"...

I used Permetex Ultra Blue. "Sensor safe" (non-corrosive).
Forum: GPS 08-21-2022, 04:25 PM
Replies: 6
Views: 436
Posted By bjdecker
Find the screws and pull it apart. Look around...

Find the screws and pull it apart. Look around for a coin cell (CR2016, 2032, 2045, etc. ad nauseam). Replace coin cell...like other Garmin GPS units it may require de-soldering the old one.
Forum: RV-10 08-20-2022, 06:53 PM
Replies: 16
Views: 1,601
Posted By bjdecker
I used AN960-10L washers top/bottom of the delrin...

I used AN960-10L washers top/bottom of the delrin stop to take up the space.
Forum: RV Building Tips/Techniques 08-20-2022, 09:36 AM
Replies: 20
Views: 2,642
Posted By bjdecker
Best practice

^^^ This ^^^

Just need to be careful scratching the skins when you move them into position...
Forum: Safety 08-18-2022, 10:49 AM
Replies: 252
Views: 31,020
Posted By bjdecker
Plans for the -7 big rudder (RV-9) call for the...

Plans for the -7 big rudder (RV-9) call for the E-612-020 weight. Which according to Van's weighs in at 1.85lbs.
Forum: Safety 08-18-2022, 10:42 AM
Replies: 252
Views: 31,020
Posted By bjdecker
No argument -- I now rest the balls of my feet on...

No argument -- I now rest the balls of my feet on the outside of the rudder pedals, takes up any slack in the cables.
Forum: Safety 08-18-2022, 10:40 AM
Replies: 252
Views: 31,020
Posted By bjdecker
None whatsoever; crosswind (demonstrated) to...

None whatsoever; crosswind (demonstrated) to 20kts (Airport T82) at heavy weights. I tend to land a bit on the faster side however -- usually over the fence at 75kts, rounding out / flare at 65kts...
Forum: Safety 08-18-2022, 09:58 AM
Replies: 252
Views: 31,020
Posted By bjdecker
I believe the -8 is lighter, but not by much. ...

I believe the -8 is lighter, but not by much. While the -8 rudder is smaller in area compared to the -9 rudder, it uses thicker skins (.020" vs .016"). The -8 rudder has fewer parts as well (no...
Forum: Safety 08-18-2022, 09:33 AM
Replies: 252
Views: 31,020
Posted By bjdecker
Vibration in flight...

Bill,

I encountered a similar issue in my first -7 with the big rudder (R-901), and 3" x 1/2" wedge attached to T.E. We were heavy, aft CG but within limits, in a descent from 9500 passing 8500 at...
Forum: RV-14 08-05-2022, 07:54 AM
Replies: 3
Views: 515
Posted By bjdecker
Jump ahead to 16-03 and 20-05 and look at the...

Jump ahead to 16-03 and 20-05 and look at the rivet call outs for the top and bottom skins. They look like AN426's, so that would imply dimpled substructure.
Forum: Safety 08-05-2022, 07:37 AM
Replies: 92
Views: 13,579
Posted By bjdecker
PM sent...

PM sent...
Forum: RV Ongoing Maintenance Issues 08-05-2022, 07:30 AM
Replies: 24
Views: 2,946
Posted By bjdecker
An alternative...

I was looking at a friends IO-360-M1B, and I noticed that the breather tube is different than what is installed on my IO-360-A1B6, i.e. an AN844-10D (45 elbow tube 5/8") and I have the "classic"...
Forum: RV Ongoing Maintenance Issues 08-02-2022, 08:11 AM
Replies: 26
Views: 2,687
Posted By bjdecker
Ah! I would look at the difference in each...

Ah! I would look at the difference in each spring rates being the cause. If you disassemble the mechanism you'll see two springs that are compressed depending upon the movement of the unbent rod.
Forum: Traditional Aircraft Engines 08-01-2022, 02:53 PM
Replies: 1
Views: 389
Posted By bjdecker
It's an AN7 bolt, so 450 - 500inch-Lbs -or- 37.5...

It's an AN7 bolt, so 450 - 500inch-Lbs -or- 37.5 - 41.7foot-Lbs -or- 50.843 - 56.53newton-meters

Don't forget to add the friction drag (prevailing torque) to the above...typically in the sub...
Forum: RV Ongoing Maintenance Issues 08-01-2022, 01:41 PM
Replies: 26
Views: 2,687
Posted By bjdecker
P-Factor, Torque, Precession, Spiraling...

P-Factor, Torque, Precession, Spiraling Slipstream all work to make the airplane turn faster/easier to the left...
Forum: RV Ongoing Maintenance Issues 08-01-2022, 12:49 PM
Replies: 26
Views: 2,687
Posted By bjdecker
I pulled the whole thing apart, polished off the...

I pulled the whole thing apart, polished off the black oxide from each rod and then I cut about 3/16" off each threaded end and tapped the holes a little deeper.

IIRC Darwin has a shorter length...
Forum: RV-10 08-01-2022, 10:43 AM
Replies: 7
Views: 994
Posted By bjdecker
Notice how the variability in MAP tracks to...

Notice how the variability in MAP tracks to changes in RPM?

The intake port opening/shutting sets up a pressure wave in the MAP pressure line which the transducer "sees" as changes in MAP.

I...
Forum: RV Building Tips/Techniques 08-01-2022, 10:01 AM
Replies: 13
Views: 1,435
Posted By bjdecker
Back to copper studs...

~20+ odd years ago, I started with the copper mandrels (aka. draw pins) that came from Bob Avery. I didn't like that they would stretch after a few holes and had to use a new copper mandrel.

As...
Forum: RV Ongoing Maintenance Issues 08-01-2022, 08:04 AM
Replies: 26
Views: 2,687
Posted By bjdecker
Totally repairable. The bent arm is threaded...

Totally repairable.

The bent arm is threaded into the body and it can be center drilled and then screw-extracted. You'll need the heat the end with a torch to melt the cyanoacrylate thread locker...
Forum: RV-10 07-28-2022, 11:24 AM
Replies: 7
Views: 994
Posted By bjdecker
Sensor...

I was thinking it might be a sensor "problem" akin to the well known issue with MAP and the G3X @ 2400RPM.

You may want to put an Omega Engineering PS-8E on the fuel pressure line @/in front of the...
Forum: RV-12/RV-12iS 07-27-2022, 06:57 PM
Replies: 16
Views: 2,282
Posted By bjdecker
Sorry, I was being glib. I don't *think*...

Sorry, I was being glib.

I don't *think* covering the hand holds will provide any measurable change in TAS, but if you are game, some aluminum HVAC tape applied parallel to the slip stream would...
Forum: RV-14 07-27-2022, 06:52 PM
Replies: 2
Views: 728
Posted By bjdecker
Stick Wire Routing

Reference - Section 36, Page 10 - Figure 1.

The 1/4" hole in the CS-00008 for cable routing seems to be in the "wrong" place.

After looking at the stick "in situ", the pivot point, the surrounding...
Forum: RV-12/RV-12iS 07-27-2022, 06:41 PM
Replies: 16
Views: 2,282
Posted By bjdecker
Change from LP4-3 rivets to CS4-4's....

Change from LP4-3 rivets to CS4-4's....
Forum: RV General Discussion/News 07-27-2022, 03:28 PM
Replies: 5
Views: 807
Posted By bjdecker
Hmm...Installation detail and other...

Hmm...Installation detail and other specifications for the GAP 26 (all versions) are included in the current revision (AP) of the G3X Touch installation manual.
Forum: RV General Discussion/News 07-27-2022, 03:13 PM
Replies: 5
Views: 807
Posted By bjdecker
I think they treat it like any other sensor as...

I think they treat it like any other sensor as part of the G3X Touch kit -- they don't break them out into separate pages. You can order it from a dealer however.

Part No:
010-01074-00, Probe...
Forum: Traditional Aircraft Engines 07-27-2022, 08:38 AM
Replies: 18
Views: 3,983
Posted By bjdecker
"Now where did I put my lunch sack?" -- Lycoming...

"Now where did I put my lunch sack?" -- Lycoming Engine Builder
Forum: ADS-B 07-25-2022, 05:39 PM
Replies: 8
Views: 587
Posted By bjdecker
Ah, sorry.

Ah, sorry.
Forum: Electronic Ignition Systems 07-24-2022, 08:03 AM
Replies: 8
Views: 616
Posted By bjdecker
Don't be afraid...

I cut the ends off and re-terminated all the connectors using MIL-C/DTL machined crimp terminations and D-sub back shells.

Just don't tell anyone :)
Forum: Electrical Systems 07-23-2022, 10:31 AM
Replies: 3
Views: 526
Posted By bjdecker
Alternator

It could be:

1. Belt slipping on the alternator -- as the flywheel heats up, it expands and results in less/no belt slippage.

2. Alternator field &/or wiring issues to alternator. Bad...
Forum: RV Building Tips/Techniques 07-21-2022, 02:18 PM
Replies: 4
Views: 401
Posted By bjdecker
Chatter usually happens at high tool speeds. ...

Chatter usually happens at high tool speeds.

Use a 3 flute countersink bit or single hole debur tool in an electric screw driver (RPM < 100).
Forum: RV-14 07-21-2022, 12:13 PM
Replies: 18
Views: 2,433
Posted By bjdecker
Try https://aircraftextrusion.com/ Out of...

Try https://aircraftextrusion.com/

Out of curiosity, is 6061-T6 not workable in your application? Van's uses it for angle "all over" (AA6-nnn-nnn, etc..)
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