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Search: Posts Made By: rocketbob
Forum: RV General Discussion/News Today, 09:39 PM
Replies: 38
Views: 2,127
Posted By rocketbob
Flying a 172 is still better than driving.

Flying a 172 is still better than driving.
Forum: RV-14 Yesterday, 02:23 PM
Replies: 38
Views: 4,958
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 Yesterday, 02:05 PM
Replies: 38
Views: 4,958
Posted By rocketbob
Tell us how you know.

Tell us how you know.
Forum: RV-14 Yesterday, 01:57 PM
Replies: 38
Views: 4,958
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 Yesterday, 11:29 AM
Replies: 38
Views: 4,958
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: 205
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: 810
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: 844
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: 363
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: 67
Views: 8,651
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: 554
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: 554
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...
Forum: RV-8/8A 04-26-2021, 11:12 AM
Replies: 35
Views: 3,745
Posted By rocketbob
When Todd was still with us I had him make a...

When Todd was still with us I had him make a custom canopy for my F1. He special ordered heavier material to make it and it took five tries to get it right. I have been very happy with it, and its...
Forum: COMM 04-26-2021, 08:24 AM
Replies: 12
Views: 576
Posted By rocketbob
I had a GTR-200 I installed in a Citabria have...

I had a GTR-200 I installed in a Citabria have noise issues with a Tailbeacon. Running a ground wire to the fuselage from the Tailbeacon fixed the problem.
Forum: RV-14 04-25-2021, 09:37 PM
Replies: 5
Views: 882
Posted By rocketbob
I had a Beech Musketeer I work on that had...

I had a Beech Musketeer I work on that had several leaks in the right wing. Using a HF vacuum pump and a stethoscope I was able to find the leaks in a very inaccessible spot and stopped the leaks by...
Forum: RV General Discussion/News 04-24-2021, 06:09 AM
Replies: 53
Views: 5,248
Posted By rocketbob
Timing would have to be retarded from the...

Timing would have to be retarded from the nameplate, which "limiting total advance" may mean the same thing.

One would also have to modify the fuel system to avoid vapor lock. Easily solvable...
Forum: Traditional Aircraft Engines 04-20-2021, 06:48 AM
Replies: 1
Views: 290
Posted By rocketbob
case - Crankcase Services in Sand Springs,...

case - Crankcase Services in Sand Springs, OK
crank, cam, rods, tappets, rockers - Aircraft Specialties Services in Tulsa OK

These two companies have their stuff together.

Without mentioning names...
Forum: GPS 04-19-2021, 01:54 PM
Replies: 5
Views: 373
Posted By rocketbob
G5 RS232 definitely works with the ESG for...

G5 RS232 definitely works with the ESG for encoder input.
Forum: Traditional Aircraft Engines 04-13-2021, 06:40 AM
Replies: 20
Views: 2,428
Posted By rocketbob
There's a lot of going off in the weeds here. To...

There's a lot of going off in the weeds here. To answer the question "how bad is this", one has to first measure.

The only way to accurately measure this is on a granite surface plate using a shim...
Forum: Glass Cockpit 04-12-2021, 05:29 PM
Replies: 39
Views: 12,745
Posted By rocketbob
Garmin's Lidar even works on...

Garmin's Lidar even works on Mars.

https://www.garmin.com/en-US/blog/general/garmin-on-mars/
Forum: RV Ongoing Maintenance Issues 04-07-2021, 09:21 AM
Replies: 13
Views: 1,312
Posted By rocketbob
Often I find mis-greasing or putting too much...

Often I find mis-greasing or putting too much grease in a prop hub causes more problems than it solves. The big o-rings around the blades ride on "teflons" and too much grease causes the orings to...
Forum: RV-6/6A 04-06-2021, 01:52 PM
Replies: 14
Views: 1,143
Posted By rocketbob
I have both airplanes. This is nonsense. I...

I have both airplanes. This is nonsense. I would take a RV out any day over the 150 in gusty conditions. #1 reason is quick climb to smooth air. #2 more responsive handling in the bumps.
Forum: RV General Discussion/News 04-06-2021, 06:57 AM
Replies: 19
Views: 4,285
Posted By rocketbob
Aeroshell is a clay-based grease. I only use...

Aeroshell is a clay-based grease. I only use Lucas Red and Tacky.
Forum: RV Ongoing Maintenance Issues 03-31-2021, 07:31 PM
Replies: 13
Views: 1,142
Posted By rocketbob
IMO the only thing that causes stuck valves is...

IMO the only thing that causes stuck valves is dirty oil. I do not change oil based on hours or calendar time. Gets dark brown, almost black...change it. My last oil change in my Comanche was at...
Forum: Glass Cockpit 03-30-2021, 07:25 PM
Replies: 15
Views: 1,224
Posted By rocketbob
I know enough about solar flares, the military,...

I know enough about solar flares, the military, people with jammers, bad TNC connections, bad antennas, etc. any of which of these failure modes has me convinced to have VHF nav onboard.
Forum: COMM 03-28-2021, 08:41 AM
Replies: 2
Views: 366
Posted By rocketbob
http://www.aeroelectric.com/Installation_Data/Garm...

http://www.aeroelectric.com/Installation_Data/Garmin/SL30_IM.pdf

Appendix E
Forum: RV General Discussion/News 03-25-2021, 12:27 PM
Replies: 11
Views: 1,229
Posted By rocketbob
Last summer was on short final into our strip, at...

Last summer was on short final into our strip, at night, in my Comanche. Short final brake check as normal and WHOA no brake pedal physically there, but felt it laying on floor with my toes. No big...
Forum: RV-10 03-24-2021, 07:56 AM
Replies: 9
Views: 561
Posted By rocketbob
The advantage of the CIES sender is that it uses...

The advantage of the CIES sender is that it uses a magnetic angular position IC to get the position of the float arm. What this means is there is no traditional pot wiper which eventually wears...
Forum: Reviews 03-23-2021, 07:08 PM
Replies: 6
Views: 815
Posted By rocketbob
Have bought lots of stuff from him lately. I am...

Have bought lots of stuff from him lately. I am patient with him, he runs two avionics shops and works 12 hour days. 100% recommend him.
Forum: RV Ongoing Maintenance Issues 03-22-2021, 06:42 PM
Replies: 26
Views: 2,152
Posted By rocketbob
Perhaps then please explain to the audience here...

Perhaps then please explain to the audience here how filtered oil drains thru the threaded fitting (the center) back into the sump.
Forum: RV Ongoing Maintenance Issues 03-22-2021, 03:05 PM
Replies: 26
Views: 2,152
Posted By rocketbob
One thing I am reminded of today and that is that...

One thing I am reminded of today and that is that its probably a good idea to put a tee fitting at the bottom of the oil cooler as does Cessna in later model 172s. From there you can drain the oil...
Forum: RV Ongoing Maintenance Issues 03-22-2021, 02:48 PM
Replies: 26
Views: 2,152
Posted By rocketbob
No. Oil is fed to the outside of the pleats from...

No. Oil is fed to the outside of the pleats from either of two paths. Thru the center of the filter is where filtered oil exits the filter and feeds the engine. Filtered oil cannot drain back to...
Forum: RV Ongoing Maintenance Issues 03-22-2021, 01:56 PM
Replies: 26
Views: 2,152
Posted By rocketbob
Also, this statement is incorrect. Oil is fed...

Also, this statement is incorrect. Oil is fed from the oil pump to the outside of the filter. The path of filtered oil, which is the center of the filter, does not drain back. Unless oil can go...
Forum: RV Ongoing Maintenance Issues 03-22-2021, 01:53 PM
Replies: 26
Views: 2,152
Posted By rocketbob
Often I find crud outside of the filter and...

Often I find crud outside of the filter and laying inside the can. Last year I did 24 annuals on certificated aircraft so I check filters 30-40 times a year. If you study an accessory case the...
Forum: RV Ongoing Maintenance Issues 03-20-2021, 05:23 PM
Replies: 26
Views: 2,152
Posted By rocketbob
Doing this will cause shavings and whatever loose...

Doing this will cause shavings and whatever loose junk is in the filter to work their way back down into the oil pump.
Forum: Traditional Aircraft Engines 03-19-2021, 08:19 AM
Replies: 5
Views: 625
Posted By rocketbob
I've always thought a reamer is the wrong tool...

I've always thought a reamer is the wrong tool for this particular job....never had any subsequent guide issues once cleaned up with a ball hone. Its also a heck of a lot easier to set up and get...
Forum: Tools 03-18-2021, 08:52 AM
Replies: 27
Views: 1,711
Posted By rocketbob
The little inverter machines are great especially...

The little inverter machines are great especially on aluminum but don't have the duty cycle specs of larger machines. Which is probably not much of a problem for the hobbyist. I have an older...
Forum: Traditional Aircraft Engines 03-15-2021, 12:13 PM
Replies: 232
Views: 50,145
Posted By rocketbob
I have heard the proposed AMOC is a grind to...

I have heard the proposed AMOC is a grind to 0.010" over which would make it a one-time use crank and unoverhaulable in the future. I just put an XP back together with a new Lycoming crank.
Forum: RV General Discussion/News 03-15-2021, 12:02 PM
Replies: 12
Views: 1,672
Posted By rocketbob
I store clecos in my gun safe, along with my...

I store clecos in my gun safe, along with my ammo. No you can't have any.
Forum: RV-14 03-13-2021, 06:23 PM
Replies: 5
Views: 848
Posted By rocketbob
Alternator fail light circuits are designed for a...

Alternator fail light circuits are designed for a low impedance load such as an incandescent light bulb. You will likely have to add a resistor to ground to get the indication to work properly.
Forum: Places To Fly...Things to See...Things to Eat 03-13-2021, 12:40 PM
Replies: 3
Views: 487
Posted By rocketbob
A good friend of mine has a condo there. Very...

A good friend of mine has a condo there. Very relaxing. Nice country club.
Forum: RV Ongoing Maintenance Issues 03-03-2021, 01:50 PM
Replies: 8
Views: 502
Posted By rocketbob
Yes I am suggesting exactly that. Its easily...

Yes I am suggesting exactly that. Its easily done wrong and not something I would teach over an internet forum. Its best to learn from experience with this directly working with an A&P.
Forum: Traditional Aircraft Engines 03-03-2021, 12:18 PM
Replies: 232
Views: 50,145
Posted By rocketbob
Talked to a knowledgeable crankcase guy and he...

Talked to a knowledgeable crankcase guy and he said the hi-crush bearings used in the XP engines are better than the doweled bearings. So no issue there.
Forum: RV Ongoing Maintenance Issues 03-03-2021, 10:35 AM
Replies: 8
Views: 502
Posted By rocketbob
No offense but it really sounds like you still...

No offense but it really sounds like you still need an A&P to help you.
Forum: Traditional Aircraft Engines 03-03-2021, 05:48 AM
Replies: 232
Views: 50,145
Posted By rocketbob
Over the weekend I opened an XP-360 up for crank...

Over the weekend I opened an XP-360 up for crank swap.

1. Found bearings are not doweled.
2. Thru studs are not doweled.
3. Brand new engine from Superior had ECI rods in it.

Thinking about...
Forum: RV General Discussion/News 02-24-2021, 08:39 AM
Replies: 26
Views: 1,578
Posted By rocketbob
Myflightbook.com will back up your logbook to an...

Myflightbook.com will back up your logbook to an excel file nightly to your preferred cloud drive provider and all your endorsements are included in image files. Once every few months I back those...
Forum: RV General Discussion/News 02-24-2021, 07:40 AM
Replies: 26
Views: 1,578
Posted By rocketbob
I use myflightbook.com and also have my students...

I use myflightbook.com and also have my students use it. Its very good especially for getting reports on ratings progress.
Forum: Glass Cockpit 02-23-2021, 05:49 PM
Replies: 17
Views: 1,568
Posted By rocketbob
My $.02. I would get a Mini with the...

My $.02.

I would get a Mini with the magnetometer, backup battery and database options and have it completely disconnected from the Garmin stuff for a true standalone backup system.
Forum: Reviews 02-21-2021, 09:13 PM
Replies: 21
Views: 3,275
Posted By rocketbob
On the Porsche M96 engines as injectors age they...

On the Porsche M96 engines as injectors age they leak down at shutdown. The fuel dribbles down into the bottoms of the cylinders which dilutes the oil and causes bore scoring.
Forum: RV-9/9A 02-19-2021, 07:16 PM
Replies: 7
Views: 939
Posted By rocketbob
ACS specifies the applicant demonstrates power-on...

ACS specifies the applicant demonstrates power-on stalls no less than 65% power. So you do not need to be at full power to demonstrate power-on stalls. You will have to communicate this with the...
Forum: RV Ongoing Maintenance Issues 02-19-2021, 07:10 PM
Replies: 18
Views: 1,700
Posted By rocketbob
There is no mystery here. It works or it...

There is no mystery here. It works or it doesn't.

Verify snap of impulse coupling on TDC #1 by looking thru top plug hole at piston with flashlight. Then check flywheel marks. Back off 35 deg or...
Forum: Electrical Systems 02-18-2021, 12:27 PM
Replies: 44
Views: 5,608
Posted By rocketbob
Nearest boat place to me is 30mi away. IMO...

Nearest boat place to me is 30mi away.

IMO ANL's are not worth having and can be easily replaced with a proper fabricated fusible link. Last year I replaced an alternator cable on an RV that was...
Forum: Electrical Systems 02-18-2021, 09:06 AM
Replies: 44
Views: 5,608
Posted By rocketbob
I think it would be better to fabricate a fusible...

I think it would be better to fabricate a fusible link rather than an ANL as the likelihood of finding an ANL fuse on a X/C trip would be slim to none unless you are carrying a spare.
Forum: RV General Discussion/News 02-18-2021, 07:59 AM
Replies: 17
Views: 2,305
Posted By rocketbob
Old mowers do well as tugs. I put a ball on my...

Old mowers do well as tugs. I put a ball on my zero-turn and that works well as a tug. Plus I still mow with it.

I also have an electric John Deere E-gator I bought dead for $300. New batteries...
Forum: RV-7/7A 02-15-2021, 07:44 AM
Replies: 38
Views: 9,746
Posted By rocketbob
Friend of mine has a VOR/ILS antenna made out of...

Friend of mine has a VOR/ILS antenna made out of a BNC bulkhead fitting and a piece of welding wire soldered onto it, installed in the wingtip. Total installed cost under $1.00. I did most of my IFR...
Forum: RV General Discussion/News 02-12-2021, 08:36 AM
Replies: 12
Views: 4,809
Posted By rocketbob
https://goo.gl/photos/J2LYRKMfiTbY7iAe6 Not in...

https://goo.gl/photos/J2LYRKMfiTbY7iAe6

Not in the pics but I turned a piece of copper slug the same width as the gearleg, stuck that in the sockets, clamped, and TIG welded the cracks. Then...
Forum: Traditional Aircraft Engines 02-11-2021, 10:59 AM
Replies: 232
Views: 50,145
Posted By rocketbob
1. Cranks can be ground undersize in different...

1. Cranks can be ground undersize in different journal diameters for overhaul. The smallest diameter permissible is the strength limit.
2. So you can overhaul them in the future.
3. Yes, by...
Forum: RV General Discussion/News 02-10-2021, 08:01 AM
Replies: 4
Views: 1,548
Posted By rocketbob
Is the tire replaceable?

Is the tire replaceable?
Forum: RV General Discussion/News 02-08-2021, 08:43 AM
Replies: 21
Views: 3,424
Posted By rocketbob
I'm always surprised at how people don't know how...

I'm always surprised at how people don't know how stuff works in this country. The way you go about ensuring your interests at a public airport is to make a modest political donation to the elected...
Forum: Traditional Aircraft Engines 02-07-2021, 08:56 AM
Replies: 2
Views: 423
Posted By rocketbob
As I recall the ECI oversized studs I used on a...

As I recall the ECI oversized studs I used on a OH had the oversize stamped on the ends of the studs. P1, P3, P5 etc.
Forum: RV General Discussion/News 01-27-2021, 07:48 AM
Replies: 11
Views: 1,224
Posted By rocketbob
You can build one using a Carter P5000 and a...

You can build one using a Carter P5000 and a 25psi bypass valve.
Forum: RV General Discussion/News 01-21-2021, 10:34 PM
Replies: 18
Views: 2,550
Posted By rocketbob
A few years back I was bored in a hotel on a work...

A few years back I was bored in a hotel on a work trip and wanted to learn how to use...
Forum: Painting your RV 01-20-2021, 08:48 AM
Replies: 14
Views: 1,821
Posted By rocketbob
I would if they had a darker color. :)

I would if they had a darker color. :)
Forum: Safety 01-13-2021, 06:01 AM
Replies: 12
Views: 3,842
Posted By rocketbob
Nobody mentioned spray foam. lol

Nobody mentioned spray foam. lol
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