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Search: Posts Made By: lr172
Forum: RV-7/7A Yesterday, 11:31 AM
Replies: 25
Views: 1,118
Posted By lr172
Going to be tough to find an 80A alternator with...

Going to be tough to find an 80A alternator with external VR. However, an IR alternator can be easily modifed to take a field from an external VR. A bit of surgery and soldering, but pretty easy...
Forum: VAF Classifieds (posts in here deleted after 30 days) Yesterday, 10:40 AM
Replies: 1
Views: 189
Posted By lr172
Archer VOR Antenna - Rt

My kit came with two archer antennas and only plan to install one. The right side version is for sale. Brand new in package with installation instructions. ACS sells for
$125. Asking $100...
Forum: Propellers Yesterday, 10:36 AM
Replies: 10
Views: 461
Posted By lr172
I think this is an installation issue. I had...

I think this is an installation issue. I had that issue the first time I put tape on, but the second time has been 100 hours and no issue. It does separate at the very edge and Craig recommends a...
Forum: Propellers Yesterday, 10:33 AM
Replies: 10
Views: 461
Posted By lr172
I used a prop tape from Spruce and followed...

I used a prop tape from Spruce and followed Catto's installation guidelines. Not sure which one - would have to look it up. I have flown through rain many times, always at 2700 RPM. It works and...
Forum: RV General Discussion/News 08-20-2019, 06:56 AM
Replies: 11
Views: 424
Posted By lr172
That's interesting. My EIS 4000 had two tach...

That's interesting. My EIS 4000 had two tach inputs. Didn't realize there was an older version with only one.

Larry
Forum: Steam Gauges 08-20-2019, 06:54 AM
Replies: 1
Views: 177
Posted By lr172
They make a glue used for cell phone digitizers...

They make a glue used for cell phone digitizers that is thin and crystal clear. It will only take a few minutes to disassemble the radio and remove the lens for repair.

Larry
Forum: RV General Discussion/News 08-19-2019, 11:04 PM
Replies: 56
Views: 3,993
Posted By lr172
The carb's mixture window is at the beginning of...

The carb's mixture window is at the beginning of the fuel circuit and it meters total flow out of the carb's bowl. This includes the enrichment circuit, if you have one. I would guess that closing...
Forum: RV General Discussion/News 08-19-2019, 10:55 PM
Replies: 11
Views: 424
Posted By lr172
Your EIS needs a large resistor to safely catch a...

Your EIS needs a large resistor to safely catch a pulse off the the coil of the mag. However, most any EI will send a nice 12 volt square wave tach signal and therefore no resistor should be used...
Forum: Electrical Systems 08-18-2019, 11:44 AM
Replies: 33
Views: 3,729
Posted By lr172
I suppose he changed suppliers. I was referring...

I suppose he changed suppliers. I was referring to the old one that he sold, not realizing the change.

Larry
Forum: RV-4 08-17-2019, 11:26 AM
Replies: 17
Views: 964
Posted By lr172
That makes sense. The polyester resins lose...

That makes sense. The polyester resins lose their liquid component over time and begin to crack, just like any plastic. Epoxy does not share this flaw and hence the go to material for longevity. ...
Forum: RV-4 08-17-2019, 11:22 AM
Replies: 17
Views: 964
Posted By lr172
You'll want to grind out the old repairs, as they...

You'll want to grind out the old repairs, as they have cracked as well. Try to grind down to the base cowl material, then re-do the patch. Be sure the patch extends far enough from the crack to get...
Forum: Electrical Systems 08-16-2019, 12:32 PM
Replies: 33
Views: 3,729
Posted By lr172
This is my recommendation. The one from Stein...

This is my recommendation. The one from Stein wouldn't charge my ipad at the higher current level.

Larry
Forum: RV-4 08-16-2019, 12:29 PM
Replies: 17
Views: 964
Posted By lr172
Hard to tell without a picture, but that area...

Hard to tell without a picture, but that area helps to hold the front of the cowl pieces together and was somewhat thin on mine. I would try adding some layers of glass to the back side to help...
Forum: RV General Discussion/News 08-14-2019, 11:06 PM
Replies: 0
Views: 292
Posted By lr172
Limited Hanger Access at DPA

Looking for limited hanger access at DPA. I expect to go into Phase I in late October. Getting worried about it being too cold on the ramp to do the work I will need to before and after the...
Forum: RV-10 08-14-2019, 10:50 PM
Replies: 7
Views: 835
Posted By lr172
I do all of my own work - wiring, panel, engine,...

I do all of my own work - wiring, panel, engine, paint, etc I put the windows in after all of the panel mechanical work was done, as was rear wiring and the bulk of the top and door fairing (i.e....
Forum: RV General Discussion/News 08-13-2019, 10:36 PM
Replies: 23
Views: 3,087
Posted By lr172
I have a catto and applied the leading edge tape....

I have a catto and applied the leading edge tape. I fly at 2700 in all kinds of rain with no damage/erosion. I think his caution is for props without the tape.

Larry
Forum: International 08-13-2019, 06:39 PM
Replies: 18
Views: 3,209
Posted By lr172
Good luck and enjoy Jim! Are you taking any of...

Good luck and enjoy Jim! Are you taking any of the family?

Larry
Forum: RV General Discussion/News 08-13-2019, 06:31 PM
Replies: 23
Views: 3,087
Posted By lr172
I have flown through some relatively heavy rain...

I have flown through some relatively heavy rain in my 6 / IO-320 (IMC). Don't see how any meaningfull amount of water can get through the filter. Light amounts that can vaporize are almost...
Forum: RV-6/6A 08-13-2019, 10:05 AM
Replies: 7
Views: 706
Posted By lr172
Pretty sure the gear on the 7 is the same alloy...

Pretty sure the gear on the 7 is the same alloy and diameter as the gear for the 6, just a bit longer. The 7 is rated at 1800, so I doubt there is an issue with the gear. Pretty sure the gear...
Forum: RV General Discussion/News 08-12-2019, 11:35 AM
Replies: 41
Views: 5,078
Posted By lr172
Your theory has a much deeper insight and is...

Your theory has a much deeper insight and is likely closer to reality than mine. It makes sense. I have great confidence that the reversals are due to the interactions of the two pumps and their...
Forum: Traditional Aircraft Engines 08-11-2019, 06:32 PM
Replies: 2
Views: 233
Posted By lr172
It was my understanding that the ring gears are...

It was my understanding that the ring gears are not universal and must me matched to the correct ring gear support. Something about the widths being different.

Larry
Forum: RV General Discussion/News 08-11-2019, 06:01 PM
Replies: 20
Views: 1,365
Posted By lr172
I have seen very few laws or regs in my life,...

I have seen very few laws or regs in my life, targetted at a general public population, that are designed to distinguish beteween the skills represented by Dan and the guy who can't fuel his own...
Forum: RV General Discussion/News 08-11-2019, 02:29 PM
Replies: 20
Views: 1,365
Posted By lr172
Probably wasn't clear, as I was addressing the...

Probably wasn't clear, as I was addressing the issue of non-builders doing CI's. My position was that a builder WAS qualified to perform a condition inspection, but a pilot/non-builder with limited...
Forum: RV-7/7A 08-11-2019, 11:43 AM
Replies: 21
Views: 2,182
Posted By lr172
Don't think it works that way. As you climb, the...

Don't think it works that way. As you climb, the air density decreases, resulting in lower ambient pressures. The Pmag will see that as reduced MAP (it cares only about inches of mercury at it's...
Forum: RV General Discussion/News 08-11-2019, 10:57 AM
Replies: 20
Views: 1,365
Posted By lr172
I disagree. Condition inspections are for...

I disagree. Condition inspections are for safety. How can someone inspect a component they have no knowledge of or experience with. Following your example, owner works on engine and instruments...
Forum: RV-8/8A 08-10-2019, 09:52 AM
Replies: 14
Views: 1,631
Posted By lr172
I think he meant laquer thinner. I suspect that...

I think he meant laquer thinner. I suspect that would break down the glaze (oxidized oil) and allow for proper break in. That oxidized oil, once in the honing ridges, will prevent further break in,...
Forum: RV-14 08-10-2019, 08:24 AM
Replies: 6
Views: 474
Posted By lr172
The port on the top of the accy case is fed...

The port on the top of the accy case is fed directly from the oil pump and oil temp will be as it comes out of the sump. This port is usually used for either an oil cooler input feed or the...
Forum: Traditional Aircraft Engines 08-09-2019, 03:05 PM
Replies: 16
Views: 1,768
Posted By lr172
no problem. I have one mag at 25* and an EI that...

no problem. I have one mag at 25* and an EI that ranges from 23 to 35* of advance, depending upon MAP. What you are looking to optimize or set is the total effective timing, which comes from the...
Forum: RV General Discussion/News 08-08-2019, 10:34 PM
Replies: 41
Views: 5,078
Posted By lr172
It is believed / speculated that the pulsations...

It is believed / speculated that the pulsations from the electric pump cause the wheel to go back and forth slightly and therefore occassionally count extra rotations when the pulsation occurs when...
Forum: Primers 08-08-2019, 10:26 PM
Replies: 21
Views: 1,095
Posted By lr172
Thanks. Per the quote, "scratches within this...

Thanks. Per the quote, "scratches within this layer [alclad] have little effect on strength." The alclad layer is at least .001" thick and my sanding put scratches in with a depth of way less than...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 08-08-2019, 10:17 PM
Replies: 9
Views: 543
Posted By lr172
If you make it down to Chicago, you are welcome...

If you make it down to Chicago, you are welcome to look at mine. I am about 2-3 months from first flight.

Larry
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 08-08-2019, 07:39 PM
Replies: 6
Views: 457
Posted By lr172
don't forget that the mag gear in the case is...

don't forget that the mag gear in the case is indexed to the idler gear, the same way the idler gear is matched to the crank and cam gears - with dots. Its in the overhaul manual. If you don't do...
Forum: RV Building Tips/Techniques 08-08-2019, 07:32 PM
Replies: 7
Views: 588
Posted By lr172
If the drill is not exactly centered and your...

If the drill is not exactly centered and your using a #30 or 40 drill bit this happens. It is almost impossible to get it exactly centered. I work the bit at an angle to get the head off. You...
Forum: Primers 08-08-2019, 03:21 PM
Replies: 21
Views: 1,095
Posted By lr172
The discussion was around sanding for the...

The discussion was around sanding for the application of a sealing primer, which provides the same corrosion protection as the aluminum cladding and in many cases does so more effectively. What is...
Forum: Primers 08-07-2019, 09:32 AM
Replies: 21
Views: 1,095
Posted By lr172
If this were true, all of the unprimed kits would...

If this were true, all of the unprimed kits would be rotting to pieces, as there are MANY parts of the plane made from non-clad 2024. It's true that 2024 is less corrossion resistant than pure Al. ...
Forum: Primers 08-07-2019, 08:27 AM
Replies: 21
Views: 1,095
Posted By lr172
I agressively abraded the exterior during paint...

I agressively abraded the exterior during paint to get a better mechanical adhesion and my primer stuck like glue. This was based upon the recommendation from a paint manufacturer. the more...
Forum: Primers 08-06-2019, 10:37 PM
Replies: 21
Views: 1,095
Posted By lr172
When I painted my 6, I planned to sand with 180...

When I painted my 6, I planned to sand with 180 prior to epoxy primer. I wasn't really worried about the alclad layer, as the epoxy primer would be the new barrier. However, I ran a test. I hit a...
Forum: Traditional Aircraft Engines 08-06-2019, 12:35 PM
Replies: 9
Views: 956
Posted By lr172
I would also make sure your cable linkage has...

I would also make sure your cable linkage has drifted or moved, preventing you from fully retracting the mixture arm on the servo.

Larry
Forum: RV General Discussion/News 08-05-2019, 11:42 AM
Replies: 2
Views: 273
Posted By lr172
Thanks! more

Thanks!

more
Forum: RV General Discussion/News 08-05-2019, 08:46 AM
Replies: 2
Views: 273
Posted By lr172
8050-1

I vaguely remember when I registered my 6 that I had to use an original, multi-page form from the FAA for this. It now appears that I can download the form from the FAA website without having them...
Forum: ADS-B 08-02-2019, 09:47 AM
Replies: 3
Views: 224
Posted By lr172
Yes Yes

Yes

Yes
Forum: RV-7/7A 08-01-2019, 10:12 AM
Replies: 7
Views: 781
Posted By lr172
I got a great deal on my 320 core/rebuild, so...

I got a great deal on my 320 core/rebuild, so couldn't justify the extra cost of a 360. I am very happy in most cases. I cruise at 160 knots (that is LOP, so could go faster) and the 360 wouldn't...
Forum: Glass Cockpit 08-01-2019, 10:07 AM
Replies: 3
Views: 330
Posted By lr172
Yes, that was my understanding for my install. ...

Yes, that was my understanding for my install. #3 must go to a bus voltage source and #5 can be empty.

Larry
Forum: RV-10 08-01-2019, 06:46 AM
Replies: 11
Views: 3,210
Posted By lr172
good catch. Sorry about that. Larry

good catch. Sorry about that.

Larry
Forum: RV-10 07-31-2019, 10:42 PM
Replies: 11
Views: 3,210
Posted By lr172
All QB assemblies are primed with a SW wash...

All QB assemblies are primed with a SW wash primer.
Forum: RV-10 07-31-2019, 11:53 AM
Replies: 6
Views: 949
Posted By lr172
I would guess, assuming you use the same priming...

I would guess, assuming you use the same priming technique for each cold start, that the plane baking in the sun all afternoon evaporated more fuel out of the post servo, fuel lines than normal,...
Forum: Safety 07-30-2019, 07:57 PM
Replies: 19
Views: 2,103
Posted By lr172
I would get your buddy to push this issue a bit...

I would get your buddy to push this issue a bit harder with the underwriter. Seems pretty rediculous to require 5 hours of dual when he already has 100 hours in that make / model. I can't believe...
Forum: RV Ongoing Maintenance Issues 07-30-2019, 07:44 PM
Replies: 13
Views: 1,797
Posted By lr172
If the tear is outward of the corded portion of...

If the tear is outward of the corded portion of the tire, it should be fine. The tire has a key thickness (includes the nylon or steel cording embedded within it) that it needs to support air...
Forum: RV General Discussion/News 07-30-2019, 12:01 PM
Replies: 23
Views: 2,029
Posted By lr172
I spent a career in s/w sales, travelling a...

I spent a career in s/w sales, travelling a minimum of once every two weeks, usually more. Being based out of Chicago, I can assure you that ORD is one of the very worst places to travel to or from....
Forum: Fuel Injection Systems 07-29-2019, 11:43 AM
Replies: 17
Views: 1,711
Posted By lr172
I think it would be more fair to say that half of...

I think it would be more fair to say that half of the fuel is delivered in concert and the other half of the fuel is NOT delivered in concert with the valve opening, just like a batch system. ...
Forum: RV-6/6A 07-29-2019, 10:56 AM
Replies: 20
Views: 3,813
Posted By lr172
same here. I get 160 kts true at 8000-9000 on...

same here. I get 160 kts true at 8000-9000 on 8.1 or 8.2 GPH. IO-320 with balanced injectors, one EI and Catto prop.

Larry
Forum: Electronic Ignition Systems 07-27-2019, 02:29 PM
Replies: 69
Views: 19,562
Posted By lr172
That only addresses if the MAP sensor gets...

That only addresses if the MAP sensor gets disconnected from it's source. That doesn't address what Michael was talking about, which is a failure of the MAP sensor and the eroneous data it will...
Forum: Fuel Injection Systems 07-27-2019, 01:07 PM
Replies: 13
Views: 852
Posted By lr172
idle circuit/mixture has virtually no influence...

idle circuit/mixture has virtually no influence at 1800 rpm (run-up) therefore you should be looking for a different source. Could be an inssue with the FM-150. Call Don for ideas. Do you have a...
Forum: VAF Classifieds (posts in here deleted after 30 days) 07-26-2019, 09:47 PM
Replies: 2
Views: 821
Posted By lr172
Let me know if you decide to separate them. I...

Let me know if you decide to separate them. I might be interested in one 370, if the price is right.

Larry
Forum: Electrical Systems 07-25-2019, 12:08 PM
Replies: 51
Views: 3,335
Posted By lr172
+1 here This is why I stuck with SLA technology...

+1 here

This is why I stuck with SLA technology on the 10 build. My VR will drop the field voltage on OV condition, protecting the electronics. However, I have good certaintity that my batteries...
Forum: Traditional Aircraft Engines 07-25-2019, 10:57 AM
Replies: 2
Views: 480
Posted By lr172
Mine weren’t really close either, however, there...

Mine weren’t really close either, however, there remained a large enough passage to get oil into the cleaance at 70 psi. Don’t need a very large hole to feed that bearing with a 70 psi source. ...
Forum: Fuel Injection Systems 07-25-2019, 08:44 AM
Replies: 13
Views: 852
Posted By lr172
Is it running rich at idle RPMs or just at taxi...

Is it running rich at idle RPMs or just at taxi RPMs?

Larry
Forum: Traditional Aircraft Engines 07-21-2019, 10:14 PM
Replies: 11
Views: 632
Posted By lr172
It won't lube everything. Many parts, including...

It won't lube everything. Many parts, including the cylinder, pistons, cam lobes, accesory gears, etc. are lubricated via centrifugal splash from the crankshaft (specifically oil fed to the rod...
Forum: Traditional Aircraft Engines 07-21-2019, 09:53 PM
Replies: 5
Views: 935
Posted By lr172
Look for an ignition problem on #4. The backfire...

Look for an ignition problem on #4. The backfire is likely not a backfire, but an afterfire. When a plug intermittently doesn't fire, the raw air fuel mixture gets dumped into the exh pipe during...
Forum: Traditional Aircraft Engines 07-21-2019, 07:55 PM
Replies: 11
Views: 632
Posted By lr172
I would trust the pickling. Gravity takes engine...

I would trust the pickling. Gravity takes engine oil off of steel parts within a few days, creating exposure to corrosion. The oils designed for protection do not do this. They are designed to...
Forum: Traditional Aircraft Engines 07-21-2019, 06:21 PM
Replies: 11
Views: 632
Posted By lr172
surfaces should have been coated with an assembly...

surfaces should have been coated with an assembly grease. It is a light grease and will not run off like oil. If this was done, it can sit for years without that grease running off the surfaces...
Forum: Traditional Aircraft Engines 07-21-2019, 02:35 PM
Replies: 11
Views: 632
Posted By lr172
crank and rod journals/bearings are designed to...

crank and rod journals/bearings are designed to have the clearance filled with oil. The designers determine the pressure necessary to maintain this. I am sure there is a flow requirement given the...
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