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Search: Posts Made By: rocketbob
Forum: RV General Discussion/News Yesterday, 12:13 PM
Replies: 5
Views: 1,532
Posted By rocketbob
Sometimes a drop or two of oil on the shaft takes...

Sometimes a drop or two of oil on the shaft takes care of a sticky fuel selector.
Forum: Rocket Yesterday, 10:10 AM
Replies: 20
Views: 789
Posted By rocketbob
Perhaps. My point is there are several...

Perhaps.

My point is there are several chokepoints downstream of the servo.

In this case Jim and I picked the largest cone filter we could find that would work dimensionally in the confines of the...
Forum: Rocket Yesterday, 08:47 AM
Replies: 20
Views: 789
Posted By rocketbob
I don't see the point of hand wringing over a 3"...

I don't see the point of hand wringing over a 3" inlet when you have intake runners that have a 1.75" ID after the airflow makes two 90 degree bends from the servo thru the sump.
Forum: VAF Classifieds (posts in here deleted after 30 days) Yesterday, 08:10 AM
Replies: 3
Views: 186
Posted By rocketbob
rocketbob@gmail.com

rocketbob@gmail.com
Forum: VAF Classifieds (posts in here deleted after 30 days) Yesterday, 06:44 AM
Replies: 3
Views: 186
Posted By rocketbob
I'll take it.

I'll take it.
Forum: Glass Cockpit 06-15-2020, 01:13 PM
Replies: 20
Views: 1,510
Posted By rocketbob
FlyQ works fine on older hardware. This is...

FlyQ works fine on older hardware. This is precisely the reason why I quit using ForeFlight a few years back. Haven't missed it one bit.
Forum: RV Ongoing Maintenance Issues 06-11-2020, 02:31 PM
Replies: 11
Views: 1,199
Posted By rocketbob
I just finished doing some welding and...

I just finished doing some welding and fabrication on an old Schweiss bifold door that needed repair. The cables had eaten into the steel rotating tubes such that one of the cables had worn into the...
Forum: RV Ongoing Maintenance Issues 06-10-2020, 03:57 PM
Replies: 11
Views: 1,199
Posted By rocketbob
I'd make it out of steel. Lathe turn 8620 and...

I'd make it out of steel. Lathe turn 8620 and heat treat for abrasion resistance.
Forum: Propellers 06-08-2020, 09:59 PM
Replies: 30
Views: 1,896
Posted By rocketbob
180hp RV-4 with the Whirlwind 200RV is a really...

180hp RV-4 with the Whirlwind 200RV is a really fun combination. I would say worth the effort.
Forum: RV-8/8A 06-03-2020, 08:31 AM
Replies: 38
Views: 2,895
Posted By rocketbob
I just repainted the nosewheel on my 150. ...

I just repainted the nosewheel on my 150. Looking at it I noticed a flaw in the wheel. Look at the wall thickness around the wheel...
Forum: RV-8/8A 06-01-2020, 07:57 PM
Replies: 38
Views: 2,895
Posted By rocketbob
I'd swap wheels and axles and see if it goes to...

I'd swap wheels and axles and see if it goes to the other side.
Forum: VAF Classifieds (posts in here deleted after 30 days) 05-29-2020, 04:04 PM
Replies: 1
Views: 342
Posted By rocketbob
Magnetometer has been sold.

Magnetometer has been sold.
Forum: VAF Classifieds (posts in here deleted after 30 days) 05-29-2020, 03:49 PM
Replies: 1
Views: 342
Posted By rocketbob
FS: GMU-11 magnetometer

Garmin GMU-11 magnetometer, new in box. Plugged in and turned on a few times for bench testing.

$180 + $10 shipping CONUS
Forum: Traditional Aircraft Engines 05-28-2020, 06:31 PM
Replies: 77
Views: 13,896
Posted By rocketbob
Pure guess metered fuel line connected to gage...

Pure guess metered fuel line connected to gage port on the divider.
Forum: RV General Discussion/News 05-26-2020, 12:33 PM
Replies: 17
Views: 1,502
Posted By rocketbob
Been there done that. No you don't need to call...

Been there done that.

No you don't need to call the FAA.
No you don't need to hire a DAR.

Its simple.

1. Reserve the existing N-number if you're going to purchase it, just to keep a N-number...
Forum: RV General Discussion/News 05-22-2020, 10:42 AM
Replies: 13
Views: 3,337
Posted By rocketbob
I have made clamps for these using an...

I have made clamps for these using an appropriately sized AN firewall fitting. I cut slot the end to make a collet out of it, and used a B-nut to tighten over...
Forum: RV General Discussion/News 05-21-2020, 08:41 PM
Replies: 16
Views: 1,613
Posted By rocketbob
Your oil filter tells you all you need to know. ...

Your oil filter tells you all you need to know. I've sent oil samples of engines with known bad problems just to humor myself and they did not detect anything. In that case oil filter was full of...
Forum: RV General Discussion/News 05-21-2020, 12:45 PM
Replies: 16
Views: 1,607
Posted By rocketbob
Aircraft Specialties in Tulsa is the gold...

Aircraft Specialties in Tulsa is the gold standard.

I'm sending some O-320 parts to Airworx in Brewton, AL next week to give them a try.
Forum: RV-6/6A 05-21-2020, 09:01 AM
Replies: 40
Views: 18,527
Posted By rocketbob
I had serious cracks in my -6 mount. I welded...

I had serious cracks in my -6 mount. I welded the cracks after removing the mount, and welded a heavy ring around the bottom of the gear leg and over the cracks after smoothing the weld beads over. ...
Forum: RV-8/8A 05-20-2020, 02:48 PM
Replies: 13
Views: 1,702
Posted By rocketbob
I'd bet you will be quite happy with a O-320 if...

I'd bet you will be quite happy with a O-320 if you go constant speed. I flew the test time off a 9A with an O-320 and MT prop and was quite impressed. An 8 should be better.
Forum: RV General Discussion/News 05-20-2020, 02:23 PM
Replies: 36
Views: 3,608
Posted By rocketbob
Some people need flip phones.

Some people need flip phones.
Forum: Reviews 05-20-2020, 01:31 PM
Replies: 15
Views: 1,741
Posted By rocketbob
I have overhauled engines that had a band of...

I have overhauled engines that had a band of pitting around the circumference of the bottom of the cylinders where cylinder heaters were installed. They also exhibited wear on the cylinders...
Forum: COMM 05-20-2020, 12:59 PM
Replies: 49
Views: 3,544
Posted By rocketbob
Why RAMI sells these junk antennas still is...

Why RAMI sells these junk antennas still is something I don't get. Having a ring terminal connection on the end of a feedline exposing the center conductor is like connecting a garden hose with a...
Forum: Glass Cockpit 05-19-2020, 08:10 AM
Replies: 14
Views: 1,612
Posted By rocketbob
I agree. I carry two iPads, automatic updates...

I agree. I carry two iPads, automatic updates turned off on both, and they are only for flying, so no other apps. Separate iCloud account than I use for my "daily" phone and iPad. I only update...
Forum: Glass Cockpit 05-19-2020, 07:21 AM
Replies: 14
Views: 1,612
Posted By rocketbob
Why are HSI's still a thing?

Last evening I enjoyed a nice flight as a safety pilot doing RNAV approaches in a Mooney which has a pair of G5's I installed a few months ago. I had an epiphany/realization that the 2nd G5 HSI...
Forum: RV General Discussion/News 05-17-2020, 08:48 PM
Replies: 4
Views: 354
Posted By rocketbob
You can set the egap without the tool. Line the...

You can set the egap without the tool. Line the notches up visually.
Forum: RV Ongoing Maintenance Issues 05-17-2020, 03:41 PM
Replies: 20
Views: 2,683
Posted By rocketbob
My $.02 is this was from a loose nut which...

My $.02 is this was from a loose nut which allowed the rod end thread to fret in the nutplate. I would check the threads in the nutplate as well.
Forum: Traditional Aircraft Engines 05-15-2020, 07:02 AM
Replies: 7
Views: 761
Posted By rocketbob
There is no proper tool for this task. There is...

There is no proper tool for this task. There is more than one way to remove the thru bolt.
Forum: Traditional Aircraft Engines 05-15-2020, 06:35 AM
Replies: 7
Views: 761
Posted By rocketbob
Hopefully you're not pissed at the mechanic as...

Hopefully you're not pissed at the mechanic as this is not his fault. Chamfer the hole just like any drilled hole and move on. Care would have to be taken to not allow the chips to fall inside the...
Forum: RV General Discussion/News 05-13-2020, 12:18 PM
Replies: 15
Views: 2,194
Posted By rocketbob
I've tried the dry-lube type of lubricants on the...

I've tried the dry-lube type of lubricants on the many certified aircraft I annual. On something like the Mooney M20C there's probably at least fifty heim joints in the gear and control system and...
Forum: RV-7/7A 05-13-2020, 11:07 AM
Replies: 10
Views: 936
Posted By rocketbob
Works great. If you peen one flange of the hinge...

Works great. If you peen one flange of the hinge over an anvil every foot or so can take out all of the slop. Before drilling of course.
Forum: Traditional Aircraft Engines 05-12-2020, 06:42 AM
Replies: 11
Views: 1,467
Posted By rocketbob
On the 540 you can look at the middle cam lobes...

On the 540 you can look at the middle cam lobes thru the dipstick hole.
Forum: RV-9/9A 05-09-2020, 10:31 AM
Replies: 19
Views: 1,438
Posted By rocketbob
My $0.02...when the time comes I would use the...

My $0.02...when the time comes I would use the avionics out of the Tri-Pacer as its not likely that someone would pay a premium on that airplane where you could recoup at least some of that...
Forum: COMM 05-09-2020, 07:27 AM
Replies: 49
Views: 3,544
Posted By rocketbob
Food for thought. Not all grounds work the same....

Food for thought. Not all grounds work the same. For better RF noise immunity, braided cable grounds work better due to something called skin effect. They present lower impedance to RF signals...
Forum: Traditional Aircraft Engines 05-08-2020, 10:49 AM
Replies: 18
Views: 1,379
Posted By rocketbob
I would recommend getting a hold of a...

I would recommend getting a hold of a thermocouple calibrator. I have built an engine monitor and find my design is accurate to nominally 2 degrees on K-type thermocouple inputs but in some...
Forum: RV-8/8A 05-08-2020, 09:54 AM
Replies: 15
Views: 1,527
Posted By rocketbob
2000 series CLoc's with adjustable receptacles...

2000 series CLoc's with adjustable receptacles from Skybolt. I put three on outside, two inside, none above the tire. Custom bracket so the screws holding the aft half of the wheelpant attach with...
Forum: Electronic Ignition Systems 05-08-2020, 08:03 AM
Replies: 45
Views: 4,125
Posted By rocketbob
Yes, how about having Mike test this and we find...

Yes, how about having Mike test this and we find out. :)

The detonation margin and power output is large when running E85 in turbocharged automobiles with tunes specifically tailored for this. Are...
Forum: RV-8/8A 05-08-2020, 07:10 AM
Replies: 15
Views: 1,527
Posted By rocketbob
Yes have done it works great.

Yes have done it works great.
Forum: Electronic Ignition Systems 05-07-2020, 10:16 PM
Replies: 45
Views: 4,125
Posted By rocketbob
Lower octane, shorter burn. In one of my cars I...

Lower octane, shorter burn. In one of my cars I have an aftermarket tune. I can select which octane I'm running and the tune is quite different.

I get that octane numbers are resistance to...
Forum: Electronic Ignition Systems 05-07-2020, 12:07 PM
Replies: 45
Views: 4,125
Posted By rocketbob
Tested on 100LL? I'd bet you'd see vastly...

Tested on 100LL? I'd bet you'd see vastly different numbers on mogas.
Forum: RV-10 05-06-2020, 01:05 PM
Replies: 60
Views: 6,389
Posted By rocketbob
A mechanical fuel pump has two diaphragms with a...

A mechanical fuel pump has two diaphragms with a drain in between in case the fuel pump has an internal leak. Any fuel pressure sensor does not have this redundancy. This mode of failure could...
Forum: RV-10 05-04-2020, 08:11 AM
Replies: 60
Views: 6,389
Posted By rocketbob
It might be worthy to note fuel pressure senders...

It might be worthy to note fuel pressure senders are installed in many GA airplanes such as Bonanzas under the floor in the cabin.
Forum: RV Building Tips/Techniques 05-01-2020, 07:48 AM
Replies: 9
Views: 1,029
Posted By rocketbob
I can't see the image. Is the sensor ok for use...

I can't see the image.

Is the sensor ok for use with fuel?
Forum: Traditional Aircraft Engines 04-29-2020, 09:51 AM
Replies: 17
Views: 2,048
Posted By rocketbob
I've dealt with engines that had excessive lead...

I've dealt with engines that had excessive lead deposits which were causing preignition, which in turn caused runaway CHTs on application of full power.
Forum: RV General Discussion/News 04-29-2020, 05:48 AM
Replies: 7
Views: 455
Posted By rocketbob
Thomas keep in mind the roads around us are...

Thomas keep in mind the roads around us are oriented to true north and we have 5 deg. W variation, so it sounds like your calibration is correct. We took a Mooney over to MZZ a few weeks ago to do...
Forum: RV Ongoing Maintenance Issues 04-28-2020, 10:48 PM
Replies: 60
Views: 8,618
Posted By rocketbob
I've been doing this for years. If you look...

I've been doing this for years. If you look inside any A65 or O200 Continental the dipstick tube, cap, and upper part of the dipstick tend to rust if you don't do this.
Forum: Glass Cockpit 04-28-2020, 10:49 AM
Replies: 21
Views: 5,371
Posted By rocketbob
Awesome! I never did get around to doing this...

Awesome! I never did get around to doing this other than making an easy way to plug into the canbus wires. What can usb adapter are you using? Wireshark?
Forum: Safety 04-28-2020, 08:34 AM
Replies: 29
Views: 4,948
Posted By rocketbob
I have yet to have anything come loose using...

I have yet to have anything come loose using split grade 8 washers with a thin backing washer. I buy them by the pound at Tractor Supply. Wouldn't hurt to throw blue loctite on and maybe even a...
Forum: Traditional Aircraft Engines 04-22-2020, 06:02 PM
Replies: 17
Views: 1,741
Posted By rocketbob
I have a Sunnen AN portable hone that I use for...

I have a Sunnen AN portable hone that I use for fixing ring step wear and roundness and use a variety of stones. For just cleaning up a cylinder I use a Brush Research aluminum oxide 320 grit ball...
Forum: RV General Discussion/News 04-21-2020, 05:32 PM
Replies: 4
Views: 479
Posted By rocketbob
I have 15 year old Proseal in the freezer for odd...

I have 15 year old Proseal in the freezer for odd jobs. I haven't found any degradation in cure time or sealing performance.
Forum: RV General Discussion/News 04-21-2020, 06:36 AM
Replies: 11
Views: 745
Posted By rocketbob
Intercom works great. Really like that it has a...

Intercom works great. Really like that it has a number of audio inputs.
Forum: RV Photo/Video URLs 04-17-2020, 04:46 PM
Replies: 34
Views: 4,056
Posted By rocketbob
Even the Dude approves during these strange...

Even the Dude approves during these strange times. Nice video Jon!
Forum: RV General Discussion/News 04-17-2020, 07:20 AM
Replies: 201
Views: 29,452
Posted By rocketbob
What kind of harnesses did the airplane have? ...

What kind of harnesses did the airplane have? Were crotch straps installed?
Forum: Traditional Aircraft Engines 04-14-2020, 09:29 AM
Replies: 5
Views: 652
Posted By rocketbob
Keeps the pump gears from being destroyed by...

Keeps the pump gears from being destroyed by large flakes, chips, pieces of cotter pins, etc. The oil pump is ahead of the oil filter. Not wise to take it out.
Forum: RV Ongoing Maintenance Issues 04-14-2020, 09:19 AM
Replies: 11
Views: 1,080
Posted By rocketbob
Perhaps Allan could come up with a brake caliper...

Perhaps Allan could come up with a brake caliper modification service to end this silly problem once and for all.

Take Porsche brake calipers for example. Porsches are well-known for for having...
Forum: Places To Fly...Things to See...Things to Eat 04-13-2020, 07:11 PM
Replies: 22
Views: 1,977
Posted By rocketbob
Evidently good BBQ.

Evidently good BBQ.
Forum: Traditional Aircraft Engines 04-13-2020, 07:01 PM
Replies: 33
Views: 3,157
Posted By rocketbob
Last year I overhauled one of the heads on my 911...

Last year I overhauled one of the heads on my 911 which uses one-time-use stretch bolts that are torqued to an initial NM torque then torqued to an angle. I tried one of these tools and they are a...
Forum: RV-6/6A 04-13-2020, 06:20 PM
Replies: 21
Views: 2,495
Posted By rocketbob
Rivet gun with long punch set. Like butta

Rivet gun with long punch set. Like butta
Forum: RV General Discussion/News 04-13-2020, 12:25 PM
Replies: 9
Views: 936
Posted By rocketbob
Mask the crank flange edge and bushings with 1-2...

Mask the crank flange edge and bushings with 1-2 wraps of 2" masking tape.

No oil. No ziplock bag. They just make things harder.

I use a large round phillips screwdriver in one of the crank...
Forum: RV General Discussion/News 04-09-2020, 06:17 PM
Replies: 10
Views: 763
Posted By rocketbob
https://www.ruralking.com/fuel-tank-filter-1-npt

https://www.ruralking.com/fuel-tank-filter-1-npt
Forum: Safety 04-09-2020, 07:30 AM
Replies: 48
Views: 6,052
Posted By rocketbob
I've had enough failures in various tailwheel...

I've had enough failures in various tailwheel airplanes to never assume the TW is functioning correctly. In gusty conditions this means one must get slowed down aggressively.
Forum: Electrical Systems 04-08-2020, 11:26 AM
Replies: 22
Views: 2,893
Posted By rocketbob
I've flown with the VP's quite a bit. It is a...

I've flown with the VP's quite a bit. It is a neat system, most of the time. At other times, its a PITA. Quick shutdown and restart, for example. Too often products in our business get obsoleted...
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