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Search: Posts Made By: rocketbob
Forum: Traditional Aircraft Engines 10-20-2021, 06:53 PM
Replies: 37
Views: 2,368
Posted By rocketbob
I haven't used anti-seize of any kind on plugs...

I haven't used anti-seize of any kind on plugs for years on any of the airplanes I maintain. The helicoils are stainless and its simply not necessary. This makes plug changes and compression checks...
Forum: Traditional Aircraft Engines 10-20-2021, 11:02 AM
Replies: 3
Views: 223
Posted By rocketbob
Airpower is my go-to for Lycoming parts and...

Airpower is my go-to for Lycoming parts and cylinders. I will only use Continental Prime Cerminil cylinders as I have had zero issues with them.
Forum: RV Ongoing Maintenance Issues 10-20-2021, 08:30 AM
Replies: 16
Views: 397
Posted By rocketbob
They wont run on 7psi, but you have to get the...

They wont run on 7psi, but you have to get the low pressure indication ironed out first. Unlikely both pumps are not putting out pressure. Look for a loose fitting upstream of the boost pump, could...
Forum: RV Ongoing Maintenance Issues 10-19-2021, 08:56 PM
Replies: 16
Views: 397
Posted By rocketbob
Dear Frustrated in MA, Carefully pull the air...

Dear Frustrated in MA,

Carefully pull the air side of the servo regulator and look for excessive blue staining/goo and clean up if found. In updraft installs of RSA servos there are a number of...
Forum: RV-8/8A 10-18-2021, 12:11 PM
Replies: 9
Views: 225
Posted By rocketbob
Many certified aircraft use resistive senders in...

Many certified aircraft use resistive senders in a summing (series) configuration to accurately gauge the tank when the tanks are full.
Forum: Traditional Aircraft Engines 10-13-2021, 12:38 PM
Replies: 9
Views: 1,849
Posted By rocketbob
on the opposite end of the scale

C172 I just did a prebuy on a month ago. Engine had 42 hours SMOH and was flown for 15 minutes every 6 weeks.

What not to do.
Forum: Autopilots 10-12-2021, 12:24 PM
Replies: 3
Views: 141
Posted By rocketbob
There is no way to do it with any iOS based...

There is no way to do it with any iOS based devices or aviation apps. Can be done with Avare on Android with a bluetooth RS232 adapter.
Forum: RV General Discussion/News 10-05-2021, 09:27 AM
Replies: 11
Views: 940
Posted By rocketbob
C182 eating tires is due to main gear alignment,...

C182 eating tires is due to main gear alignment, not balance. Shimmy can cause the nosewheel tire to wear unevenly. Shimmy is normally fixed by shimming the steering collar.
Forum: Traditional Aircraft Engines 10-02-2021, 04:50 PM
Replies: 4
Views: 394
Posted By rocketbob
This is incorrect. Lycoming, for some strange...

This is incorrect. Lycoming, for some strange reason, does not publish specs in any table of limits for lift or cam lobe dimensions.
Forum: Traditional Aircraft Engines 09-29-2021, 05:05 PM
Replies: 6
Views: 1,006
Posted By rocketbob
I've opened up mags and found them more destroyed...

I've opened up mags and found them more destroyed that this due to carbon dust arcing. Not saying this is the case here but I would test all of your leads with lead tester.
Forum: VAF Classifieds (posts in here deleted after 30 days) 09-28-2021, 08:32 AM
Replies: 3
Views: 575
Posted By rocketbob
I'll take them.

I'll take them.
Forum: RV General Discussion/News 09-25-2021, 09:03 PM
Replies: 19
Views: 1,875
Posted By rocketbob
FischerSIPS Styrofoam I was the contractor. ...

FischerSIPS
Styrofoam

I was the contractor. SIPS construction is very simple.
Forum: RV General Discussion/News 09-25-2021, 07:13 PM
Replies: 19
Views: 1,875
Posted By rocketbob
If I were building a hangar today I would do the...

If I were building a hangar today I would do the following:

1. Slab with in-floor heat.
2. Walls would be constructed from SIPS panels.
3. Conventional wooden truss structure 4' on center with...
Forum: GPS 09-24-2021, 10:59 AM
Replies: 5
Views: 541
Posted By rocketbob
Yes I have gotten two G5's to work with a...

Yes I have gotten two G5's to work with a non-WAAS 430.
Forum: Safety 09-22-2021, 01:47 PM
Replies: 36
Views: 2,376
Posted By rocketbob
I had a hard time with multifocal contacts for...

I had a hard time with multifocal contacts for the first month with distant vision and almost gave up on them. Now have zero problems looking at close then distant in a short time period. They are...
Forum: Interiors 09-19-2021, 07:05 PM
Replies: 5
Views: 538
Posted By rocketbob
Exactly a year ago I attempted rescuing three...

Exactly a year ago I attempted rescuing three occupants from a burning aircraft that was on its back. They perished. This was an FAA-certified aircraft with FAR23 burn tested interior materials. ...
Forum: Traditional Aircraft Engines 09-16-2021, 06:36 PM
Replies: 21
Views: 3,097
Posted By rocketbob
My experience as well. A few cold starts will...

My experience as well.

A few cold starts will throw off the numbers. I do not do oil analysis as there is plenty of information provided by a cut open or cleanable filter.

I also do frequent...
Forum: Glass Cockpit 09-15-2021, 08:43 AM
Replies: 154
Views: 39,010
Posted By rocketbob
Looks like one could do it with a...

Looks like one could do it with a MAX3421E.

https://www.makerfocus.com/products/m5stack-usb-driver-module-integrated-max3421e
Forum: Traditional Aircraft Engines 09-15-2021, 05:47 AM
Replies: 3
Views: 956
Posted By rocketbob
Lead filling low spots eroded by microwelding. ...

Lead filling low spots eroded by microwelding. Yellow is sulfur which is a normal deposit to see.
Forum: RV General Discussion/News 09-14-2021, 03:51 PM
Replies: 42
Views: 6,522
Posted By rocketbob
haha! Back when FSDO inspectors did checkrides,...

haha!

Back when FSDO inspectors did checkrides, the very nice gent that did my CFI ride informed me on what to do for a ramp check. He told me two things:

1. They have to have a badge. He showed...
Forum: Electronic Ignition Systems 09-10-2021, 07:35 AM
Replies: 72
Views: 8,565
Posted By rocketbob
I can't name a single modern automotive ignition...

I can't name a single modern automotive ignition system that places the coil and ignitor next to the electronics controlling it. They are separated for EMI/RFI immunity. That's not the case with...
Forum: Traditional Aircraft Engines 09-09-2021, 09:48 PM
Replies: 23
Views: 2,114
Posted By rocketbob
Rotec will get heat soaked in cruise and do...

Rotec will get heat soaked in cruise and do exactly what you're describing. I machined a spacer out of FR4 fiberglass .250" thick between the Rotec and the sump and that solved the problem.
Forum: Electronic Ignition Systems 09-09-2021, 06:50 PM
Replies: 72
Views: 8,565
Posted By rocketbob
Yes this one wasn't decipherable by the part #. ...

Yes this one wasn't decipherable by the part #. I ran Autolite 386's which were a little bit too hot but they worked. If I recall the L14U cross references to the 386. These should be better. The...
Forum: Electronic Ignition Systems 09-09-2021, 12:31 PM
Replies: 72
Views: 8,565
Posted By rocketbob
How do you decipher the heat range for this...

How do you decipher the heat range for this particular plug part #?
Forum: RV General Discussion/News 09-07-2021, 11:31 AM
Replies: 27
Views: 2,733
Posted By rocketbob
I good tool I use for checking antennas is a...

I good tool I use for checking antennas is a NanoVNA which one can get on Amazon for $60.

Here I am sweeping the entire band checking one of Don Pansier's excellent antennas. The cursor is showing...
Forum: COMM 09-03-2021, 06:19 PM
Replies: 10
Views: 669
Posted By rocketbob
Last year I begrudgingly put in a A220 radio in a...

Last year I begrudgingly put in a A220 radio in a Beech Musketeer. Had nothing but problems with it in the hangar picking up noise as described here. On the first flight the radio started acting up...
Forum: RV-14 08-31-2021, 02:19 PM
Replies: 17
Views: 1,930
Posted By rocketbob
If you put your hand in front of energized quad...

If you put your hand in front of energized quad beam Flyleds lights, it will melt. Very happy with them. I fly quite a bit at night.
Forum: ADS-B 08-30-2021, 03:28 PM
Replies: 8
Views: 1,118
Posted By rocketbob
Regional. Most of my trips are short ones at...

Regional.

Most of my trips are short ones at 3000ft and its very hit or miss. Sometimes FIS-B works well, sometimes not. Its unreliable enough for me I can't trust it. Yes XM costs me $35/mo and...
Forum: ADS-B 08-30-2021, 10:42 AM
Replies: 8
Views: 1,118
Posted By rocketbob
XM is still better

Last week I departed an airport with rapidly developing thunderstorm cells in the area. My trusty old panel mounted 396 was showing the nexrad radar as soon as I taxiied to the runway. One cell...
Forum: Traditional Aircraft Engines 08-26-2021, 07:42 AM
Replies: 22
Views: 4,358
Posted By rocketbob
Using this method one can't get a good look at...

Using this method one can't get a good look at tappet faces so its of very limited usefulness. Pulling the spinner and prop and plug, getting a new plug and installing it is more work than pulling a...
Forum: RV-4 08-22-2021, 07:57 AM
Replies: 31
Views: 4,140
Posted By rocketbob
Out here in the hinterlands I teach the...

Out here in the hinterlands I teach the following:

1. Pick a side road and go for that.
2. Switch fuel selector to attempt restart; if no restart shut fuel off, boost pump off. Run thru the...
Forum: Glass Cockpit 08-12-2021, 10:39 AM
Replies: 8
Views: 1,452
Posted By rocketbob
I've flown many times in RVs and other airplanes...

I've flown many times in RVs and other airplanes with Dynon and Garmin glass panels that were hard to read in bright sunlight. Certainly not something unique to iPads.
Forum: RV Ongoing Maintenance Issues 08-11-2021, 09:26 PM
Replies: 17
Views: 2,150
Posted By rocketbob
FWIW I have found washing machine hose and...

FWIW I have found washing machine hose and tractor hydraulic hose used for fuel lines on certified aircraft. Needless to say they got pitched in the trash.
Forum: RV-12/RV-12iS 08-09-2021, 05:58 AM
Replies: 5
Views: 2,299
Posted By rocketbob
I once saw a trail of oil behind a 150. Told the...

I once saw a trail of oil behind a 150. Told the mechanic working on it. Student and CFI took off an hour later and found themselves in a soybean field upside down shortly after takeoff.
Forum: Glass Cockpit 08-06-2021, 11:11 AM
Replies: 65
Views: 7,272
Posted By rocketbob
If you have a DPDT switch wired to the autopilot...

If you have a DPDT switch wired to the autopilot so the 430 can communicate directly to the Trutrak which bypasses the GRT altogether...? Wouldnt this eliminate the efis?
Forum: Electrical Systems 08-04-2021, 11:17 AM
Replies: 4
Views: 574
Posted By rocketbob
B&C BC410-H

Looking at suitable standby alternators and am wondering if those that have used the B&C BC410-H if they have good service history. Particularly when installed in the lower location for a fuel pump...
Forum: RV General Discussion/News 08-01-2021, 07:05 AM
Replies: 36
Views: 5,035
Posted By rocketbob
In the 2004 turbo 182 I flew up until a few...

In the 2004 turbo 182 I flew up until a few months ago, my normal cruise power setting was 2000/28.0". CHT's ran 340 at cruise. The only difference internally is compression ratio.
Forum: RV Ongoing Maintenance Issues 07-24-2021, 04:01 PM
Replies: 23
Views: 3,078
Posted By rocketbob
I have seen and dealt with cylinders with...

I have seen and dealt with cylinders with excessive lead deposit formation that would cause CHT's to skyrocket as you describe. As the cylinder pressures come up the deposits caused preignition. ...
Forum: RV Ongoing Maintenance Issues 07-19-2021, 08:22 AM
Replies: 13
Views: 1,781
Posted By rocketbob
Much stiffer, stronger, easier to work with in my...

Much stiffer, stronger, easier to work with in my opinion. 3-4 layers of 3K twill and one layer of 1.5 Kevlar. I used milled carbon for filler. Vastly superior to fiberglass in strength and wear...
Forum: RV Ongoing Maintenance Issues 07-17-2021, 05:10 PM
Replies: 13
Views: 1,781
Posted By rocketbob
I've repaired a number of RV cowls and wheel...

I've repaired a number of RV cowls and wheel pants. I cannot remember the last time I used fiberglass for a layup and consider it an obsolete material. In this case I would use 3K carbon and a...
Forum: Electronic Ignition Systems 07-17-2021, 11:01 AM
Replies: 72
Views: 8,565
Posted By rocketbob
Great point and makes sense. There are no...

Great point and makes sense.

There are no performance advantages to iridium plugs but they last longer. In some of the cars I own iridiums aren't recommended due to the higher resistance of the...
Forum: Electronic Ignition Systems 07-17-2021, 06:42 AM
Replies: 72
Views: 8,565
Posted By rocketbob
I wouldn't be too concerned about fake plugs as I...

I wouldn't be too concerned about fake plugs as I have seen a number of aircraft plugs fail with the insulator blowing out. Even the best quality plugs definitely can and do fail.
Forum: RV-10 06-27-2021, 07:37 AM
Replies: 7
Views: 916
Posted By rocketbob
Stick with the UREM37BY's. They are far more...

Stick with the UREM37BY's. They are far more trouble free than the others.
Forum: Traditional Aircraft Engines 06-23-2021, 08:56 AM
Replies: 7
Views: 1,442
Posted By rocketbob
Unless the engine was pickled this is on you. I...

Unless the engine was pickled this is on you. I recently disassembled and changed the crank on a Superior engine that was stored in a climate-controlled shop and found a small amount of rust in the...
Forum: RV General Discussion/News 06-22-2021, 01:09 PM
Replies: 7
Views: 775
Posted By rocketbob
I like my coffee with creamer and like having...

I like my coffee with creamer and like having pull down belts on both the shoulders and lap belts.
Forum: Traditional Aircraft Engines 06-16-2021, 01:44 PM
Replies: 17
Views: 2,771
Posted By rocketbob
There are two ways valves get stuck: 1....

There are two ways valves get stuck:

1. Imperfect seal on either exhaust or intake valves and seat interfaces causes exhaust gases to work up between the valve and the guide. The gas is hot with...
Forum: RV General Discussion/News 06-10-2021, 05:59 AM
Replies: 16
Views: 2,568
Posted By rocketbob
This is not correct. If you come in the back way...

This is not correct.

If you come in the back way to Camp Scholler via Knapp St and park at at any number of places where there is motorcycle parking it is very easy to get in an out.
Forum: Traditional Aircraft Engines 06-03-2021, 02:22 PM
Replies: 32
Views: 4,051
Posted By rocketbob
I've had mixed success with in-situ valve...

I've had mixed success with in-situ valve lapping. Sometimes its just better to pull the cylinder and have a new guide installed and clean up the valve and the seat. You will have to check the...
Forum: Fuel Injection Systems 05-27-2021, 10:30 AM
Replies: 3
Views: 361
Posted By rocketbob
The extra holes at the WOT end of really don't do...

The extra holes at the WOT end of really don't do anything but cause the relative pressure to drop in the metering tube at WOT, for a few reasons. I soldered them closed with good results.
Forum: RV Ongoing Maintenance Issues 05-19-2021, 12:25 PM
Replies: 6
Views: 849
Posted By rocketbob
No not normal. Low pitch stop on the prop can be...

No not normal. Low pitch stop on the prop can be adjusted to eliminate this from happening.
Forum: Traditional Aircraft Engines 05-18-2021, 04:51 PM
Replies: 33
Views: 4,118
Posted By rocketbob
We had many discussions with an engineer at...

We had many discussions with an engineer at Phillips (now retired) when a good friend of mine was testing oil for them. When we spoke about oil additives and their ingredients he pretty quickly...
Forum: RV General Discussion/News 05-17-2021, 06:55 AM
Replies: 22
Views: 3,879
Posted By rocketbob
I once had an engineer at Hartzell explain to me...

I once had an engineer at Hartzell explain to me that in one particular case, I believe it was a Cessna 210 with a bed mount, they found that solid aluminum mounts translated the least amount of...
Forum: RV General Discussion/News 05-15-2021, 09:39 PM
Replies: 87
Views: 12,877
Posted By rocketbob
Flying a 172 is still better than driving.

Flying a 172 is still better than driving.
Forum: RV-14 05-14-2021, 02:23 PM
Replies: 38
Views: 8,164
Posted By rocketbob
No. I use my method all cylinders, nitrided or...

No. I use my method all cylinders, nitrided or overhauled. Next door neighbor's O-320-H2AD on his Starduster I overhauled two years ago. He adds no oil in-between oil changes. They were used and...
Forum: RV-14 05-14-2021, 02:05 PM
Replies: 38
Views: 8,164
Posted By rocketbob
Tell us how you know.

Tell us how you know.
Forum: RV-14 05-14-2021, 01:57 PM
Replies: 38
Views: 8,164
Posted By rocketbob
The normal way of breaking in an engine is wrong...

The normal way of breaking in an engine is wrong and dumb. Getting cylinder walls hot causes the oil to oxidize and glazes them. You don't have to use my method, but this is the way I do them and...
Forum: RV-14 05-14-2021, 11:29 AM
Replies: 38
Views: 8,164
Posted By rocketbob
My method of several short grounds runs of 5...

My method of several short grounds runs of 5 minutes and ~1000 rpm, not to exceed 300 CHT, with complete cooldowns, works without fail. Just changed oil last night on a 540 in a Cherokee 6 I just...
Forum: RV-4 05-13-2021, 08:41 AM
Replies: 4
Views: 689
Posted By rocketbob
I can do it. rocketbob@gmail.com

I can do it.

rocketbob@gmail.com
Forum: Traditional Aircraft Engines 05-12-2021, 12:29 PM
Replies: 13
Views: 1,542
Posted By rocketbob
Not too long ago timed a R1340 and used a bent...

Not too long ago timed a R1340 and used a bent piece of music wire zip tied to a dial test indicator probe with the magnetic base attached to the steel part of the cylinder. Crude but worked far...
Forum: RV Building Tips/Techniques 05-11-2021, 01:17 PM
Replies: 15
Views: 1,427
Posted By rocketbob
My cost on overhauling Matco master cylinders is...

My cost on overhauling Matco master cylinders is less than $0.50 in o-rings.
Just did a set of four leaking master cylinders for a customer of mine a few weeks ago.

Side loading scratches the...
Forum: Autopilots 05-09-2021, 02:35 PM
Replies: 12
Views: 1,117
Posted By rocketbob
Think you have to connect via one of the serial...

Think you have to connect via one of the serial ports on the G5's rather than thru the GAD29.
Forum: RV General Discussion/News 04-30-2021, 10:19 PM
Replies: 75
Views: 16,709
Posted By rocketbob
Friend of mine had a bird strike in his RV8...

Friend of mine had a bird strike in his RV8 repaired by a old time aluminum body Indy car fabricator. The dent was much worse than this one. He used a wooden block shaped like the leading edge...
Forum: RV Ongoing Maintenance Issues 04-26-2021, 01:04 PM
Replies: 8
Views: 920
Posted By rocketbob
Correct. Some do it worse than others.

Correct. Some do it worse than others.
Forum: RV Ongoing Maintenance Issues 04-26-2021, 12:41 PM
Replies: 8
Views: 920
Posted By rocketbob
Any time you operate at reduced manifold pressure...

Any time you operate at reduced manifold pressure a bit of oil will get sucked thru the intake guide, because of the pressure difference. It goes back in the cylinder at high power. Which generates...
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