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Search: Posts Made By: lr172
Forum: Glass Cockpit Today, 12:43 PM
Replies: 5
Views: 185
Posted By lr172
Yes and I have seen this: Enabling/disabling OBS...

Yes and I have seen this:

Enabling/disabling OBS Mode (with external GPS navigator
configured):
1) Press the OBS Key on the external navigator. The ‘Set OBS and Hold’ Active Flight Plan Page menu...
Forum: Glass Cockpit Today, 12:34 PM
Replies: 5
Views: 185
Posted By lr172
That would make sense. On the other plane with...

That would make sense. On the other plane with GRT, the 430 doesn't ask for course. It just goes into OBS mode and the OBS can be adjusted via the heading knob. I have gone round and round with...
Forum: RV-14 Today, 10:14 AM
Replies: 15
Views: 573
Posted By lr172
Agreed, but the 10 and assuming the 14 to a...

Agreed, but the 10 and assuming the 14 to a lesser degree, requires WAY more stick force to control in this case than the 6. Own both of them. That said, I have a 160HP and FP prop, so expect other...
Forum: Fuel Injection Systems Today, 10:11 AM
Replies: 10
Views: 218
Posted By lr172
Also, the old injectors were single components...

Also, the old injectors were single components without a separate restrictor.
Forum: Fuel Injection Systems Today, 08:37 AM
Replies: 10
Views: 218
Posted By lr172
Your instinct/recollection was correct. From...

Your instinct/recollection was correct. From the AFP site:

INSTALLING THE NOZZLE LINE
Torque the nozzle line B-nut to 20-25 inch pounds or seat the B-nut finger tight then
tighten the B-nut an...
Forum: Fuel Injection Systems Today, 08:34 AM
Replies: 10
Views: 218
Posted By lr172
I just go by feel. However, that may not be a...

I just go by feel. However, that may not be a good recommendation for someone without a lot of years of wrenching to develop that feel.

You need to go beyond snug, but remember that you are not...
Forum: Fuel Injection Systems Today, 08:28 AM
Replies: 10
Views: 218
Posted By lr172
I don't use a torque wrench for those. However,...

I don't use a torque wrench for those. However, those nuts aren't supposed to be that tight like a nut on a bolt, as you can damage the brass ball / socket fittings inside.

Pretty sure that AFP...
Forum: RV Ongoing Maintenance Issues Today, 07:51 AM
Replies: 2
Views: 107
Posted By lr172
Do you have the old ones? O-rings often have...

Do you have the old ones? O-rings often have standardized numbers, but always follow an ID, OD, Thickness spec. If you can determine those measurements, you can get them at Mcmaster Carr or...
Forum: Glass Cockpit Today, 07:40 AM
Replies: 5
Views: 185
Posted By lr172
OBS mode with G3X

Hoping someone can help me sort this out. I am trying to figure out how to use the OBS mode in my G3X - 430W setup. Lets say ATC asked me to go to a waypoint (I am using GPS for guidance) on a...
Forum: RV-14 Today, 07:07 AM
Replies: 9
Views: 307
Posted By lr172
The crack in the attach bracket would seem to...

The crack in the attach bracket would seem to indicate that the mid to upper left side of the fairing hit a stationary object. No issues with the screws would caused the attach bracket to crack...
Forum: RV-14 Today, 06:56 AM
Replies: 15
Views: 573
Posted By lr172
I do not have a 14, but the 10 seems very similar...

I do not have a 14, but the 10 seems very similar in it's wing and Horiz stab design.

In the 10, this is an area where a good amount of practice is required; probably more so in the 10 with it...
Forum: RV Building Tips/Techniques Yesterday, 03:16 PM
Replies: 12
Views: 578
Posted By lr172
most of the fleet uses AN bolts for this...

most of the fleet uses AN bolts for this application and they have a tensile of 125K and shear of 75K.

There are numerous SS bolts the meet or exceed this strength, though some are less. Mcmaster...
Forum: Traditional Aircraft Engines Yesterday, 03:05 PM
Replies: 3
Views: 215
Posted By lr172
NO That provides an overflow path for the fuel...

NO

That provides an overflow path for the fuel if the internal diaphragm ruptures.
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) Yesterday, 02:33 PM
Replies: 26
Views: 1,101
Posted By lr172
+1 Exercise caution here. Side effects are...

+1 Exercise caution here. Side effects are highly variable. None with my 1st injection, but 2nd was bad. Next morning I was so weak I couldn't get my socks on without assistance.
Forum: Glass Cockpit Yesterday, 07:24 AM
Replies: 15
Views: 560
Posted By lr172
You should stop looking at that raw data, as you...

You should stop looking at that raw data, as you have no idea what it is used for or what it is supposed to show on the ground. I doubt anyone but GRT knows what that data is and what it is used...
Forum: Traditional Aircraft Engines Yesterday, 07:12 AM
Replies: 5
Views: 282
Posted By lr172
The cap just sits on top of the end of the valve...

The cap just sits on top of the end of the valve stem. If you can see the the two valve retainer clips, the cap is not installed. When the cap is installed, it almost completely fills the OD of the...
Forum: Glass Cockpit Yesterday, 07:03 AM
Replies: 21
Views: 641
Posted By lr172
Mine is in the same spot with no issues. I...

Mine is in the same spot with no issues. I picked that area, as the that small piece of material is very rigid, with three supporting connections very close.

Larry
Forum: RV-10 Yesterday, 06:52 AM
Replies: 8
Views: 241
Posted By lr172
be cautious here. the starting and ending...

be cautious here. the starting and ending calibration values are going to be different for every plane as the builder does their own bending of the sending arm. This will create unique high and low...
Forum: Glass Cockpit 05-06-2021, 11:11 AM
Replies: 15
Views: 560
Posted By lr172
How did you confirm that the IAS is accurate? I...

How did you confirm that the IAS is accurate? I thought you had to convert to TAS nad compare to GS.

GRT has an offset for adding or subtracting from the TAS before presentation to the pilot. You...
Forum: RV Ongoing Maintenance Issues 05-06-2021, 11:03 AM
Replies: 18
Views: 826
Posted By lr172
+1 We called it varnish and is very common in...

+1

We called it varnish and is very common in lawnmower and other engines that are not used much. It usually is a darker yellow to tan color. I assume it is not the gas, but one of the additives....
Forum: RV-10 05-06-2021, 07:54 AM
Replies: 20
Views: 1,947
Posted By lr172
The numbers that I posted are pretty much the...

The numbers that I posted are pretty much the same when solo or full gross. I have done several trips at gross and it is very repeatable, though the GPH may be .1 or .2 higher but in the range.

I...
Forum: Reviews 05-06-2021, 06:44 AM
Replies: 2
Views: 407
Posted By lr172
I had a similar issue (found a broken ring) and...

I had a similar issue (found a broken ring) and received similar service. Sent me a whole new cyl assy. It took two weeks, as they had no stock and even sent the replacement overnight Sat delivery...
Forum: Traditional Aircraft Engines 05-06-2021, 06:37 AM
Replies: 14
Views: 883
Posted By lr172
You can remove the dam to bring down the #2 temps...

You can remove the dam to bring down the #2 temps in climb and accept a lower CHT in cruise, which may not really be much lower without it. You could also build a little box under the #2 inlet ramp...
Forum: RV-6/6A 05-05-2021, 11:03 AM
Replies: 19
Views: 925
Posted By lr172
All are on the Tipper skin and many are outside...

All are on the Tipper skin and many are outside of the windshield area, if I remember correctly. Some will also be under the fibergless transition work, though you can probably still get a lot of...
Forum: Glass Cockpit 05-04-2021, 11:03 AM
Replies: 10
Views: 482
Posted By lr172
I have two portrait screens. One PFD and the...

I have two portrait screens. One PFD and the other Map/engine. Similar to a side by side large screen. I also use a large Ipad with foreflight just right of the avionics stack. I really like...
Forum: RV Building Tips/Techniques 05-04-2021, 09:24 AM
Replies: 7
Views: 665
Posted By lr172
I thought most single part sealants need either...

I thought most single part sealants need either oxygen or moisture to cure. How would that happen in an air tight environment under a cap? I vaguely remember polysulphides requiring moisture to...
Forum: RV General Discussion/News 05-04-2021, 08:20 AM
Replies: 36
Views: 4,084
Posted By lr172
The clearances are small enough that simple...

The clearances are small enough that simple gravity with the right viscosity oil will not allow the pump to empty and require a prime. However, 80 PSI is a lot of force and while I obviously have...
Forum: RV General Discussion/News 05-04-2021, 08:11 AM
Replies: 36
Views: 4,084
Posted By lr172
They lyc has an over pressure releif...

They lyc has an over pressure releif valve/flapper that will open and allow that air into the system. And yes, 80 PSI, even through an .085 orifice will be enough to evacuate the oil from the...
Forum: RV General Discussion/News 05-04-2021, 07:49 AM
Replies: 36
Views: 4,084
Posted By lr172
Absolutely NO engine is assembled dry. Most use...

Absolutely NO engine is assembled dry. Most use a light assembly grease that is designed to last longer than traditional oil in order to deal with the harsh environment of running the engine for...
Forum: RV Ongoing Maintenance Issues 05-04-2021, 07:39 AM
Replies: 18
Views: 1,236
Posted By lr172
I have heard a few reports from folks that when a...

I have heard a few reports from folks that when a new AFP boost pump was first run after sitting for years that it would run high until they hit it or did something proactive to loosen the stuck...
Forum: Fuel Injection Systems 05-04-2021, 07:04 AM
Replies: 8
Views: 679
Posted By lr172
On the high CHT / low EGT on #1, assuming that...

On the high CHT / low EGT on #1, assuming that only low RPM operations are like this and high power is consistent with other cyl's, I would open the spider and check for debris in the four V shaped...
Forum: Safety 05-04-2021, 06:49 AM
Replies: 27
Views: 2,265
Posted By lr172
Sadly I remember the first time I bought a 2400...

Sadly I remember the first time I bought a 2400 baud modem and doubled the throughput. I often think that my kids should experience that type of device to realize how good they have it today.
Forum: RV-10 05-03-2021, 09:47 AM
Replies: 20
Views: 1,947
Posted By lr172
What are the pink cross hairs for? I have never...

What are the pink cross hairs for? I have never seen those on a G3X. I really miss the CDI cross hairs that the GRT has on my 6 and wonder if that is their role. Much easier to use than the std...
Forum: Electrical Systems 05-02-2021, 07:32 AM
Replies: 2
Views: 527
Posted By lr172
a very interesting study in organizational...

a very interesting study in organizational management. I suspect that the original design team was quite large and designed the two step drilling process for just this reason. Years later, a small...
Forum: Glass Cockpit 05-02-2021, 07:19 AM
Replies: 10
Views: 584
Posted By lr172
answers in line. Much of what you need is in the...

answers in line. Much of what you need is in the installation manual not the pilots guide.
Forum: RV-10 05-02-2021, 07:01 AM
Replies: 20
Views: 1,947
Posted By lr172
at 8000', I cruise at 165 KTAS on 10.5-10.8. ...

at 8000', I cruise at 165 KTAS on 10.5-10.8. Same speed at 14,000 is low 9's GPH.

Adjustable advance EI and tuned injectors.

Larry
Forum: RV-9/9A 05-02-2021, 06:57 AM
Replies: 5
Views: 329
Posted By lr172
can't really rule out carb ice, as prime...

can't really rule out carb ice, as prime conditions for it, but seems a bit unlikely that you would have enough ice to keep your throttle from moving, yet have no noticeable symptoms such as RPM drop...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 05-01-2021, 11:04 AM
Replies: 12
Views: 940
Posted By lr172
Same here. With the 6, just open the tipper for...

Same here. With the 6, just open the tipper for 15 seconds and it clears. With the 10, I did defrost, as opening the doors is harder and produces less airlow in the cabin. Doesn't work near as...
Forum: Alternative Engines 05-01-2021, 10:58 AM
Replies: 28
Views: 4,107
Posted By lr172
The same reason that you would want a pmag that...

The same reason that you would want a pmag that generates it's own power. If you have to shut off the master due to a fire or your earthx decides to shut itself down as they sometimes do, you want...
Forum: RV-14 05-01-2021, 08:33 AM
Replies: 18
Views: 1,601
Posted By lr172
I do it for better starting performance. When...

I do it for better starting performance. When you hit the starter, bus voltage drops to 10 or lower. This causes the alternator to go to max output. First, it will draw close to 5 amps on the...
Forum: Engine Monitors 05-01-2021, 07:51 AM
Replies: 8
Views: 382
Posted By lr172
The VDO is a resistive sensor and the Kavlico is...

The VDO is a resistive sensor and the Kavlico is a transducer. Swapping will require some wiring work as well, as the transducer requires a 5V power source.
Forum: RV General Discussion/News 05-01-2021, 07:46 AM
Replies: 2
Views: 257
Posted By lr172
If you have FI, there is a pressure take off port...

If you have FI, there is a pressure take off port on the servo that some use. That is where I take it off. In the certified world many use a tee at the carb, so wouldn't be surprised to see it...
Forum: Glass Cockpit 05-01-2021, 07:24 AM
Replies: 10
Views: 480
Posted By lr172
You are taking pressure readings at a point VERY...

You are taking pressure readings at a point VERY close to an intake valve, not in a plenum like on you car. This can introduce reverse flow coditions and cause oscillations. For many, a restrictor...
Forum: Electrical Systems 04-30-2021, 11:05 AM
Replies: 55
Views: 6,558
Posted By lr172
If I had 2 pmags, I would consider some form of...

If I had 2 pmags, I would consider some form of b/u power. A scenario to consider: Elec issue causes the need to disconnect master, battery dies, etc. Pilot on final pulls power back to idle and...
Forum: RV General Discussion/News 04-30-2021, 07:33 AM
Replies: 36
Views: 4,084
Posted By lr172
Most good mechanics take extra measures to...

Most good mechanics take extra measures to pre-oil a new engine before it's first start, as they have learned that significant wear can happen when you start an engine that has been purged of oil. ...
Forum: Electrical Systems 04-29-2021, 01:48 PM
Replies: 31
Views: 1,212
Posted By lr172
Traditional ground straps often have steel...

Traditional ground straps often have steel terminals instead of copper to allow this type of connection.
Forum: Electrical Systems 04-29-2021, 10:54 AM
Replies: 31
Views: 1,212
Posted By lr172
Starters don't have a provision for connecting a...

Starters don't have a provision for connecting a ground cable, as the industry standard (auto AND aircraft) is to ground on the engine block and the starter's contact with the block is the ground...
Forum: Traditional Aircraft Engines 04-29-2021, 10:27 AM
Replies: 36
Views: 11,583
Posted By lr172
Not sure how you are interpreting this, but by my...

Not sure how you are interpreting this, but by my read Lyc clearly approves 93 octane auto fuel in the 540 C/D models, and most other 320/360 PV variants, as long as the vapor rating is A-4 (7-9.3...
Forum: Electronic Ignition Systems 04-29-2021, 07:38 AM
Replies: 19
Views: 1,337
Posted By lr172
The point is that the Cores on the MSD wires are...

The point is that the Cores on the MSD wires are superior in quality. They are designed to take the 90* bends at the terminal and history has shown that they do not fail the way that your inferior...
Forum: RV-10 04-29-2021, 07:24 AM
Replies: 12
Views: 1,420
Posted By lr172
The big issue with the adhesive based material is...

The big issue with the adhesive based material is that the plexi bleeds air, albeit very slowly. This will cause the tint material to develop air bubbles under it. Madico made a special...
Forum: RV-10 04-29-2021, 07:21 AM
Replies: 12
Views: 1,420
Posted By lr172
What is the "Kinder version?" Was this good...

What is the "Kinder version?" Was this good enough for the front windows? Would enjoy learning of better options.

Larry
Forum: Electronic Ignition Systems 04-28-2021, 11:56 AM
Replies: 19
Views: 1,337
Posted By lr172
That is a chevy SB/BB kit. Definately check the...

That is a chevy SB/BB kit. Definately check the fit on the Pmag. I thought the pmag used Ford EDIS coils and not sure the Chevy style coil connectors will fit properly. I thought the EDIS coils...
Forum: RV Ongoing Maintenance Issues 04-28-2021, 11:19 AM
Replies: 28
Views: 54,838
Posted By lr172
Pretty sure there is no requirement for the...

Pretty sure there is no requirement for the timing and use of flights in between inspection phases during inspection, as long as the inspection is done with log book entries BEFORE the expiration of...
Forum: RV General Discussion/News 04-28-2021, 08:52 AM
Replies: 22
Views: 1,619
Posted By lr172
While this approach will work well for...

While this approach will work well for traditional ground power, jumping applications, it may not work with modern automotive style battery chargers (microprocessor based vs old school transformer...
Forum: RV Ongoing Maintenance Issues 04-28-2021, 08:08 AM
Replies: 17
Views: 1,568
Posted By lr172
3/32 is a lot for hinge alignment and certain to...

3/32 is a lot for hinge alignment and certain to cause an issue. You want to measure the gaps at all four hinges and strive for consistency. Both high AND low cause problems/imbalance. You want...
Forum: RV General Discussion/News 04-28-2021, 07:52 AM
Replies: 22
Views: 1,619
Posted By lr172
That is what I did on my planes. 14 ga wire...

That is what I did on my planes. 14 ga wire directly to the battery, through a 15A fuse and to a female connector that shields the hot pin from accidental shorting to ground. Mine are well...
Forum: Traditional Aircraft Engines 04-27-2021, 01:41 PM
Replies: 12
Views: 518
Posted By lr172
There is always an easier way. As mentioned, no...

There is always an easier way. As mentioned, no need to replace the baffling; Just fix it. Might take a couple of days and you'll learn a lot about your engine. You could always pull the power...
Forum: RV General Discussion/News 04-27-2021, 11:04 AM
Replies: 29
Views: 1,768
Posted By lr172
Not an expert, but I am guessing that they barely...

Not an expert, but I am guessing that they barely fit into the 1/4" tubing, so the bent wire inserts create more than enough blockage to keep them out. I believe a mud dauber is about the size of a...
Forum: ADS-B 04-27-2021, 10:54 AM
Replies: 11
Views: 894
Posted By lr172
serial connection is better and safer. with...

serial connection is better and safer. with serial, altitude data is constantly sent from transponder to ADSB unit for re-transmission. With sniffer, data is only captured / sniffed when the...
Forum: Traditional Aircraft Engines 04-27-2021, 08:14 AM
Replies: 12
Views: 518
Posted By lr172
IMHO cowl flaps are a bandaid for this. I would...

IMHO cowl flaps are a bandaid for this. I would start with baffling quality and sealing up open areas. Many goods posts here on that subject. Whole lot of folks with 360's that can climb at 120...
Forum: Glass Cockpit 04-27-2021, 08:02 AM
Replies: 5
Views: 287
Posted By lr172
Make sure you test it. That is NOT what they...

Make sure you test it. That is NOT what they told me when I called. Also not what the manual says. More than moderately suspicious. This would not be the first time that someone was given bad...
Forum: Painting your RV 04-27-2021, 06:58 AM
Replies: 10
Views: 371
Posted By lr172
First, 400 grit won't address an adhesion...

First, 400 grit won't address an adhesion problem. I would put tape all over those surfaces and see what else pulls off. If the adhesion is truly poor, you're going to have large chunks of paint...
Forum: RV General Discussion/News 04-26-2021, 09:40 PM
Replies: 29
Views: 1,768
Posted By lr172
My big fear is mud daubers. I learned a neat...

My big fear is mud daubers. I learned a neat trick. I used a bent paperclip inserted into the opening of the sawed off AN fitting. They are still there 800 hours later and it reduces the space...
Forum: Glass Cockpit 04-26-2021, 12:19 PM
Replies: 5
Views: 287
Posted By lr172
The artex 345 can only be configured at the...

The artex 345 can only be configured at the factory for either NMEA 4800 or aviation 9600. Have you confirmed which yours is? The units sent to ACS are typically configured for aviation 9600. Some...
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