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Search: Posts Made By: lr172
Forum: Traditional Aircraft Engines 01-12-2022, 11:34 AM
Replies: 31
Views: 1,906
Posted By lr172
Yes, the guy at camgaurd did a test. St wt and...

Yes, the guy at camgaurd did a test. St wt and multi-vis behaved the same. Cam gaurd extended drip off time by a couple of weeks. Further proves that additives are required for "cling." Mike...
Forum: Glass Cockpit 01-12-2022, 11:31 AM
Replies: 13
Views: 1,361
Posted By lr172
So, to be clear, a complete 25 failure will allow...

So, to be clear, a complete 25 failure will allow auto cross fill, however, erroneous data with an otherwise running 25 requires it to be powered down to gt cross fill from G5?

Larry
Forum: RV-6/6A 01-12-2022, 08:43 AM
Replies: 21
Views: 2,908
Posted By lr172
I would have your friend run not walk from that...

I would have your friend run not walk from that plane. If one cannot follow instructions, it is likely that there are MANY unpleasant surprises lurking below the surface.

Larry
Forum: RV-10 01-12-2022, 08:35 AM
Replies: 4
Views: 307
Posted By lr172
I epoxied the magnets into the door latch pins...

I epoxied the magnets into the door latch pins (mine are SS) and use the magnetic sensors supplied with the kit. It works well but requires a bit of adjustment to get them right.

Larry
Forum: RV-10 01-12-2022, 08:32 AM
Replies: 2
Views: 290
Posted By lr172
I drilled a second set of holes to allow me to...

I drilled a second set of holes to allow me to cut off some of the lower stick, but ended up not cutting. Be advised that it is not just panel clearance, but also gut clearance. You will find that...
Forum: Glass Cockpit 01-12-2022, 08:10 AM
Replies: 13
Views: 1,361
Posted By lr172
Sorry for the thread drift here. When I asked...

Sorry for the thread drift here. When I asked this question a few years ago (non-touch system), you indicated that the 25 must be powered down in order for the system to use the G5 ADHRS data. Have...
Forum: Electrical Systems 01-10-2022, 11:40 AM
Replies: 17
Views: 860
Posted By lr172
Admittedly I have no idea how a Pmag is wired. ...

Admittedly I have no idea how a Pmag is wired. However, the symptoms tell us that the switch or wiring is somehow preventing the pmags from firing with the switch in the start position. OP needs to...
Forum: Electrical Systems 01-10-2022, 08:30 AM
Replies: 17
Views: 860
Posted By lr172
The fact that the same problem exists with both...

The fact that the same problem exists with both your old mags and new P mags would indicate a problem outside the ignition itself. I would be looking at the switch or the wiring between the switch...
Forum: Traditional Aircraft Engines 01-09-2022, 11:10 AM
Replies: 31
Views: 1,906
Posted By lr172
A conventional oil uses conventional oil stocks. ...

A conventional oil uses conventional oil stocks. Synthetic oil uses synthetic oil stocks. Additives, including viscosity modifiers, are almost universally synthetic based, but does not change the...
Forum: RV Building Tips/Techniques 01-07-2022, 10:25 AM
Replies: 16
Views: 2,366
Posted By lr172
I use the cheap nylon parts. Scrap off the cheap...

I use the cheap nylon parts. Scrap off the cheap foam adhesive, sand surface, apply VHB tape and mount. HOlds very well.

Larry
Forum: Traditional Aircraft Engines 01-07-2022, 08:37 AM
Replies: 31
Views: 1,906
Posted By lr172
What leads you to believe that 50 weight oil is...

What leads you to believe that 50 weight oil is thicker than 20w50 oil? Once above approximately 125 degrees, both oils should have the same viscosity. It is still out there because people keep...
Forum: Traditional Aircraft Engines 01-05-2022, 08:23 AM
Replies: 12
Views: 600
Posted By lr172
If the engine runs perfectly fine, shut down and...

If the engine runs perfectly fine, shut down and unsuccessfully restarted within a few seconds, it seems quite unlikely to be an ignition issue, especially if you eventually get it started...
Forum: Traditional Aircraft Engines 01-04-2022, 08:18 AM
Replies: 31
Views: 1,906
Posted By lr172
This SHOULD NOT be used in Midwest winter...

This SHOULD NOT be used in Midwest winter climates! An exception would be someone that never starts the engine without using an oil pre-heater. However, what if you go somewhere with the plane and...
Forum: RV-10 12-31-2021, 08:17 AM
Replies: 45
Views: 2,855
Posted By lr172
My wife also can't get her feet on the floor. ...

My wife also can't get her feet on the floor. Fortunately she doesn't seem to care enough about the limited fwd visibility (absolute 0 interest in piloting the plane). Making a platform for her...
Forum: RV-10 12-31-2021, 07:58 AM
Replies: 45
Views: 2,855
Posted By lr172
Time for a master cylinder rebuild on the right...

Time for a master cylinder rebuild on the right side. Note - all air in the supply line. This is what happens when the o-rings inside the matco MC wears out.

Larry
Forum: Glass Cockpit 12-20-2021, 08:44 AM
Replies: 20
Views: 1,602
Posted By lr172
I did custom panels and complete avionics /...

I did custom panels and complete avionics / electrical work on my 6 and my 10 (G3X). I am now retired and would consider a project like this. Chicago based. PM me if interested.

Larry
Forum: RV-4 12-16-2021, 08:25 AM
Replies: 16
Views: 1,544
Posted By lr172
First, you manipulate the aileron to have the the...

First, you manipulate the aileron to have the the top skin to be parallel with the straight edge when measuring. THEN, compare gap sizes. Note pics 3 and 4. Skin parallel to straight edge and gaps...
Forum: Electrical Systems 12-16-2021, 08:12 AM
Replies: 24
Views: 2,251
Posted By lr172
Thanks for the tip. if this continues, I'll pull...

Thanks for the tip. if this continues, I'll pull the Alt off and have a look at the brushes.
Forum: Electrical Systems 12-16-2021, 08:10 AM
Replies: 24
Views: 2,251
Posted By lr172
Thanks Vic. I hadn't thought of a possible short...

Thanks Vic. I hadn't thought of a possible short on the Fld wire. I checked it near the terminations, but not the whole run. Seems unlikely though, as the fld wire and B lead wire are both inside...
Forum: Electrical Systems 12-16-2021, 08:05 AM
Replies: 24
Views: 2,251
Posted By lr172
You'll have to explain why that is for me. I now...

You'll have to explain why that is for me. I now that resistance on the VR sense line will create an over voltage situation, by being tricked into believing that the buss voltage is lower than it...
Forum: Traditional Aircraft Engines 12-15-2021, 09:40 AM
Replies: 9
Views: 752
Posted By lr172
If that is true, it is not likely an ignition...

If that is true, it is not likely an ignition issue. With one plug firing instead of two, EGT should rise over that with 2 plugs firing. If both plugs stop firing, EGT goes to 0; pretty easy to...
Forum: Electrical Systems 12-14-2021, 08:14 AM
Replies: 24
Views: 2,251
Posted By lr172
I have ohm'ed out the whole circuit all the way...

I have ohm'ed out the whole circuit all the way back to the bus bar and all is <.1 ohms.

Larry
Forum: Electrical Systems 12-14-2021, 08:12 AM
Replies: 24
Views: 2,251
Posted By lr172
Thanks. If it trips again, I will wire an...

Thanks. If it trips again, I will wire an ammeter in line at the CB to confirm the actual current flow in the circuit. I also think it is the mostly likely culprit if the new connector doesn't...
Forum: Electrical Systems 12-14-2021, 08:10 AM
Replies: 24
Views: 2,251
Posted By lr172
That is the first thing I checked. Had that...

That is the first thing I checked. Had that happen once before and the symptom was over voltage, as the wire from the CB to the VR is the voltage sense.

Larry
Forum: Electrical Systems 12-13-2021, 02:32 PM
Replies: 24
Views: 2,251
Posted By lr172
Thanks for all the ideas. I crimped on a new...

Thanks for all the ideas. I crimped on a new faston for the field wire at the alternator and did a test flight with no issues. Will do a few more flights to confirm, but it is plausible. High...
Forum: Electrical Systems 12-13-2021, 12:42 PM
Replies: 24
Views: 2,251
Posted By lr172
Will try the that. What could cause the...

Will try the that. What could cause the transients to show up? Has worked well for 700 hours. Could issues in the whelen strobe box cause that? A little testing makes me believe it is better...
Forum: Electrical Systems 12-13-2021, 12:11 PM
Replies: 24
Views: 2,251
Posted By lr172
Good idea. My ideal w/RMS only has a 1 amp fuse....

Good idea. My ideal w/RMS only has a 1 amp fuse. Maybe I'll go buy a cheap one at HF and wire it in just after the breaker. Those usually have a 10 amp limit.

Larry
Forum: Electrical Systems 12-13-2021, 11:58 AM
Replies: 24
Views: 2,251
Posted By lr172
Looking for help with Alternator issue

On 8 of the last 10 flights, my Alt Fld breaker has tripped. It is a 7A breaker and it trips about 5 minutes after take off. Voltage is steady at 14.3 - 14.4 when it trips and current output is...
Forum: Traditional Aircraft Engines 12-13-2021, 11:40 AM
Replies: 33
Views: 3,233
Posted By lr172
Lead based solder (used in all copper water...

Lead based solder (used in all copper water pipes) wasn't regulated out until the 90's or 00's on water supply piping. Even the bronze fittings and faucet parts had lead. Plenty of bad stuff out...
Forum: Traditional Aircraft Engines 12-13-2021, 11:28 AM
Replies: 26
Views: 2,634
Posted By lr172
At idle and a bit higher, the restriction is in...

At idle and a bit higher, the restriction is in the divider and post divider pressure is lower than pre divider. At higher RPMs, the resriction is in the injector and pressure is constant from the...
Forum: Traditional Aircraft Engines 12-13-2021, 09:24 AM
Replies: 33
Views: 3,233
Posted By lr172
Sadly, that was different. After bulldozing it,...

Sadly, that was different. After bulldozing it, they made it a park; It was not developed into anything that helped developers or increased tax revenue. It was not greed, it was just Daley's plan...
Forum: Traditional Aircraft Engines 12-13-2021, 09:14 AM
Replies: 33
Views: 3,233
Posted By lr172
What is going on in California is not coming from...

What is going on in California is not coming from environmentalists. It is simply the latest path the local politicians are following to get rid of the GA airports in there area. This is just good...
Forum: Safety 12-12-2021, 11:20 AM
Replies: 79
Views: 5,814
Posted By lr172
FYI,Class E at the majority of un towered...

FYI,Class E at the majority of un towered airports only extends down to 700 AGL. Glass G below. This keeps most out with ceilings below 1000, but still legal to fly at 699' with 1 mi visibility and...
Forum: RV Ongoing Maintenance Issues 12-12-2021, 11:16 AM
Replies: 11
Views: 946
Posted By lr172
I remember reading that early safair pitot masts...

I remember reading that early safair pitot masts had bad welds. They changed the welding method and new versions had blue anodizing. Maybe you had an early one.
Forum: Safety 12-12-2021, 09:27 AM
Replies: 79
Views: 5,814
Posted By lr172
That pretty much is the rule. You don't cancel,...

That pretty much is the rule. You don't cancel, but ATC stops providing VFR traffic separation at MVA (often 1500-2000 AGL) and hands the pilot off to CTAF, with the intent that the IFR pilot will...
Forum: Traditional Aircraft Engines 12-11-2021, 02:21 PM
Replies: 26
Views: 2,634
Posted By lr172
very interesting and encouraging. Don't know...

very interesting and encouraging. Don't know what 702 is. Is that their 94UL or 100UL product? Guessing the latter, given the 104 MON rating, which shouild be in the neighborhood of 100...
Forum: RV General Discussion/News 12-11-2021, 01:10 PM
Replies: 29
Views: 2,231
Posted By lr172
Its up to the inspector. A magnetic direction...

Its up to the inspector. A magnetic direction indicator is required. However, there is no official language that mandates that it be mechanical vs electronic sensor. This is no different than...
Forum: Traditional Aircraft Engines 12-11-2021, 11:37 AM
Replies: 26
Views: 2,634
Posted By lr172
I don't see any press on cal banning 100LL. I...

I don't see any press on cal banning 100LL. I see a lot a noise about reid hillview and a lot of noise about folks lobbying the EPA. However, we have discussed this and currently only the FAA, not...
Forum: Safety 12-10-2021, 11:27 AM
Replies: 51
Views: 4,608
Posted By lr172
I believe that "traffic" is to state the intended...

I believe that "traffic" is to state the intended audience (other pilots) vs "radio" (FSS station). I am guessing that in the early days, FSS and CTAF shared frequencies. FSS names were the same as...
Forum: Safety 12-10-2021, 08:40 AM
Replies: 79
Views: 5,814
Posted By lr172
How exactly would you do that? Let's say it is a...

How exactly would you do that? Let's say it is a student in a 172. He is doing 70 knots into a 10 knot headwind (Students are taught stabilized approaches). It will take him around 10 minutes to...
Forum: Fuel Injection Systems 12-09-2021, 02:13 PM
Replies: 22
Views: 1,572
Posted By lr172
Nothing wrong with 220* OT for a couple of...

Nothing wrong with 220* OT for a couple of minutes. Modern oil doesn't start to seriously break down or oxidize until 250-260* Yes, running at 220 will produce a slightly shorter life span than...
Forum: Safety 12-09-2021, 08:38 AM
Replies: 79
Views: 5,814
Posted By lr172
Even at the FAF, you are not on "Final." You are...

Even at the FAF, you are not on "Final." You are on an IFR approach, just as you were at the IAF. The FAA guidance is VERY CLEAR that while on an IFR approach, the Pilot is responsible for spotting...
Forum: RV Building Tips/Techniques 12-09-2021, 08:20 AM
Replies: 13
Views: 1,241
Posted By lr172
That's what I was thinking. Don't know what is...

That's what I was thinking. Don't know what is inside a berringer wheel, but I would NEVER tighten an axle nut with tapered roller bearings with anything but my fingers. I wouldn't thing that even...
Forum: Fuel Injection Systems 12-09-2021, 08:10 AM
Replies: 22
Views: 1,572
Posted By lr172
best power in most 4 cycle engines is around...

best power in most 4 cycle engines is around 12.5-13:1. Richer is sometimes required to assist with detonation in some cases. 10:1 is way too rich for most any engine IMHO, even those with high...
Forum: Reviews 12-08-2021, 08:40 AM
Replies: 34
Views: 7,183
Posted By lr172
An alternator has an integral diode/rectifier...

An alternator has an integral diode/rectifier bridge that stripes off the waves (both of them - Pos and Neg) and produces a stable DC output. You DO NOT need a battery to convert AC to DC or to have...
Forum: Safety 12-08-2021, 08:24 AM
Replies: 79
Views: 5,814
Posted By lr172
I don't believe that any reasonable person,...

I don't believe that any reasonable person, including the FAA or a judge, would accept the concept of a 20 mile final. If you are 20 miles from an airport, You are not in the pattern and you are NOT...
Forum: Electrical Systems 12-08-2021, 08:12 AM
Replies: 44
Views: 4,051
Posted By lr172
This would be my guess as well. Nut tightening...

This would be my guess as well. Nut tightening or loosening put stress on the copper bar and over the years of vibration, a crack developed from the bottom up. Once the crack was large enough,...
Forum: ADS-B 12-07-2021, 01:59 PM
Replies: 6
Views: 574
Posted By lr172
could be an issue with the echo's sniffer. If I...

could be an issue with the echo's sniffer. If I remember correctly, the ADS-b signal include both the baro and GPS altitude; Controller typically only sees the baro alt. So eventhough the...
Forum: Traditional Aircraft Engines 12-06-2021, 01:06 PM
Replies: 7
Views: 941
Posted By lr172
To my knowledge, they are just caps, not...

To my knowledge, they are just caps, not rotators. Most rotation is done via geometery at the rocker / valve stem interface. The lycoming caps have a parallel bottom and top and therefoce can't...
Forum: Safety 12-06-2021, 12:55 PM
Replies: 79
Views: 5,814
Posted By lr172
I don't get it or like it either. However, the...

I don't get it or like it either. However, the FAA has been pushing this "stabilized approach" and 3.5* final approach for some time now. I can see why the CFI's teach it; No one wants to get...
Forum: RV-10 12-06-2021, 12:44 PM
Replies: 45
Views: 7,235
Posted By lr172
History didn't have an enormous bulge in demand,...

History didn't have an enormous bulge in demand, like we have seen in the last 18 months. I promise that bulge will rapidly deflate once people start losing jobs. Not saying the market will...
Forum: RV Ongoing Maintenance Issues 12-06-2021, 08:11 AM
Replies: 14
Views: 1,358
Posted By lr172
I have had the long bolts loosen as well. ...

I have had the long bolts loosen as well. However, they only hold the motor assy to the main gear assembly. The do not go through the main assy that cracked in your case, so don't see how they...
Forum: Electronic Ignition Systems 12-06-2021, 08:06 AM
Replies: 2
Views: 502
Posted By lr172
The pretty much universal thread for automotive...

The pretty much universal thread for automotive sparkplugs is 14 X 1.25

Larry
Forum: RV-6/6A 12-06-2021, 07:52 AM
Replies: 6
Views: 1,132
Posted By lr172
I have this same combo and works very well for...

I have this same combo and works very well for me.

Larry
Forum: Safety 12-06-2021, 07:26 AM
Replies: 79
Views: 5,814
Posted By lr172
This is what I thought was true, though I am not...

This is what I thought was true, though I am not sure I read it verbatim. When I am entering the pattern with traffic taking off and staying in the pattern, I tend to assume it is a student and that...
Forum: RV models of the future (RV-??) 12-05-2021, 09:48 AM
Replies: 55
Views: 7,253
Posted By lr172
Yeah, I find it amusing how electric car users...

Yeah, I find it amusing how electric car users think they are helping the environment. Over the last 10 years, there has been a big push to natural gas for electricity production; Hardly green...
Forum: RV Ongoing Maintenance Issues 12-05-2021, 09:35 AM
Replies: 14
Views: 1,358
Posted By lr172
In the first pic, there are significantly large...

In the first pic, there are significantly large gouges in the internal ring gear teeth. Assuming that is a steel gear, so it couldn't have been damaged by the aluminum case during it's destruction. ...
Forum: RV Ongoing Maintenance Issues 12-05-2021, 08:27 AM
Replies: 0
Views: 288
Posted By lr172
Slick T-155 impulse Inspection Tool Dimensions?

Does anyone have a slick impulse go / no go tool that would be willing to share the dimensions? Looking for ID, OD and height, preferably in thousands. WOuld like to make one.

Larry
Forum: RV Ongoing Maintenance Issues 12-04-2021, 08:33 AM
Replies: 27
Views: 4,022
Posted By lr172
It is not a flange interface. It is a socket. ...

It is not a flange interface. It is a socket. Pretty much all of the load is carried by the socket structure. The bolt just keeps the rod from falling out of the socket. This is no different from...
Forum: RV Ongoing Maintenance Issues 12-04-2021, 08:28 AM
Replies: 27
Views: 4,022
Posted By lr172
Yes, at least in my build manual. I assumed it...

Yes, at least in my build manual. I assumed it was for corrosion reasons, but see how the grease can help to minimize wear in cases where the fit was too loose. Not sure what the tolerances are on...
Forum: Traditional Aircraft Engines 12-04-2021, 07:53 AM
Replies: 336
Views: 85,138
Posted By lr172
Have done no research, but it is highly likely...

Have done no research, but it is highly likely that superior is still a US corporation, wholly owned by the Chinese parent. That means any lawsuit would be dealt with in a US court. Not saying you...
Forum: Electronic Ignition Systems 12-03-2021, 08:23 AM
Replies: 37
Views: 5,400
Posted By lr172
Once you start shooting fuel in the intake plenum...

Once you start shooting fuel in the intake plenum (i.e. the common area before the runners), you now experience the issues the carb guys do - way too small of a plenum and poor air flow distribution,...
Forum: Electrical Systems 12-03-2021, 08:00 AM
Replies: 12
Views: 778
Posted By lr172
I use voltage reduction on the 6 and it has...

I use voltage reduction on the 6 and it has plenty of power at reduced voltage. Not surprised to hear it doesn't work on the 10 (3-4 times the tab surface area). I just made a little board (1" x...
Forum: Engine Monitors 12-03-2021, 07:49 AM
Replies: 10
Views: 704
Posted By lr172
You can get the restrictors in various sizes at...

You can get the restrictors in various sizes at Mcmaster carr. .020 to .040 seems to be a good range, though I have .004 on my 10 without a meaninfull lag in response time. I have a home made...
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