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Search: Posts Made By: lr172
Forum: RV-10 Yesterday, 08:03 AM
Replies: 58
Views: 8,096
Posted By lr172
Your math seems to jive with the recently posted...

Your math seems to jive with the recently posted system's claim of 8000 BTU's of cooling, drawing a max of 80 amps. However, your data seems to be based upon a Freon system, where the recently...
Forum: Traditional Aircraft Engines 09-21-2021, 11:05 AM
Replies: 6
Views: 242
Posted By lr172
300-325 is a bit more realistic. With no...

300-325 is a bit more realistic. With no experience, I suspect that the sparkplug ring probes may read 20-30* lower than the traditional type and that would bring your temps closer to typical.

Larry
Forum: Traditional Aircraft Engines 09-21-2021, 09:17 AM
Replies: 6
Views: 242
Posted By lr172
250-300 in climb in the summer seems too low to...

250-300 in climb in the summer seems too low to be right. Suggest verifying probe accuracy. Also look for probe mismatch. Type k probes with type c configured, etc.
Forum: Traditional Aircraft Engines 09-21-2021, 07:39 AM
Replies: 12
Views: 766
Posted By lr172
If the cylinders have rust, good chance there is...

If the cylinders have rust, good chance there is rust on many other parts inside the engine, including cam and lifters. Pretty good chance this could be an expensive exercise.
Forum: RV-10 09-20-2021, 07:32 AM
Replies: 17
Views: 745
Posted By lr172
You can use the 1.2" ray allen position sensor (I...

You can use the 1.2" ray allen position sensor (I made something very similar with a linear pot). You mount it under the rear passenger cover panel and make a mounting arrangement with a lever arm...
Forum: RV General Discussion/News 09-20-2021, 07:30 AM
Replies: 5
Views: 348
Posted By lr172
If you are starting at 1000 RPMs, the mixture is...

If you are starting at 1000 RPMs, the mixture is controlled mostly by the idle mixture, not the red knob.

I have been to denver several times with DA over 10K and never had an issue starting with...
Forum: RV Ongoing Maintenance Issues 09-20-2021, 07:23 AM
Replies: 22
Views: 1,164
Posted By lr172
With the bottom cowl off, lay the top cowl in...

With the bottom cowl off, lay the top cowl in place and have someone hold the forward end at the normal position relative to the spinner. You can then easily use a flashlight to determine what type...
Forum: RV-12/RV-12iS 09-20-2021, 07:18 AM
Replies: 6
Views: 1,008
Posted By lr172
I would bridge a wire from the Pitot heat,...

I would bridge a wire from the Pitot heat, landing lights or similar sized (10 amps) source and wire directly to the pump via it's pigtail or pull the supply side wire from the pump switch and bridge...
Forum: RV General Discussion/News 09-18-2021, 07:01 AM
Replies: 24
Views: 2,128
Posted By lr172
I am not sure that reply is fair. I highly doubt...

I am not sure that reply is fair. I highly doubt more than 1 or 2% of the RV population flys without some type of Liability insurance. Therefore it is fair to make that claim. Clearly this post...
Forum: RV-10 09-18-2021, 06:54 AM
Replies: 23
Views: 2,248
Posted By lr172
+1 If you need ram air pressure in the vents, it...

+1

If you need ram air pressure in the vents, it is masking another problem in your fuel delivery system. I use a rivet head shaped termination. No ram pressure and likely a bit of venturi induced...
Forum: RV Building Tips/Techniques 09-18-2021, 06:41 AM
Replies: 32
Views: 1,328
Posted By lr172
for most bending, I used the slide over springs...

for most bending, I used the slide over springs that keep the roundness during bending. They came with a pipe flaring kit. For tighter radius bends, I used the hand held bending tool. You can get...
Forum: Electrical Systems 09-17-2021, 10:26 AM
Replies: 70
Views: 12,029
Posted By lr172
This was my understanding. However, in my case,...

This was my understanding. However, in my case, I have an external regulator with no connection to the stator. Spinning or not, it is drawing a alot of amps on the field as soon as the regulator...
Forum: Electrical Systems 09-17-2021, 10:23 AM
Replies: 70
Views: 12,029
Posted By lr172
First, the alternator is spinning while cranking...

First, the alternator is spinning while cranking the engine and second, when the voltage drops to 10 while cranking, the regulator is throwing the full current on the field, trying to bring it back...
Forum: RV General Discussion/News 09-17-2021, 10:19 AM
Replies: 25
Views: 1,860
Posted By lr172
First, most SLA batteries are AGM. They need the...

First, most SLA batteries are AGM. They need the matt to be sealed, unless using gel, which is very different than AGM. Second, the voltage drop on transmit is very unlikely to be related to the...
Forum: Traditional Aircraft Engines 09-17-2021, 07:42 AM
Replies: 22
Views: 1,809
Posted By lr172
My read of that statement is that they complied...

My read of that statement is that they complied with it, but they further state that it was not applicable. I would have to assume from this that a tear down was not completed. With a proper...
Forum: Traditional Aircraft Engines 09-17-2021, 07:35 AM
Replies: 21
Views: 2,783
Posted By lr172
Early on I used them. At 100 hours, analysis...

Early on I used them. At 100 hours, analysis came back all good with smiley faces. Inspection of filter showed large amounts of Aluminum particles. Piston pin caps were wearing away rapidly and...
Forum: RV General Discussion/News 09-17-2021, 07:24 AM
Replies: 12
Views: 843
Posted By lr172
I am thinking that the form may have changed. My...

I am thinking that the form may have changed. My Loda (issued very early) has language that says either I or a delegate has the privileges herein. Maybe the doc has changed and now it states that...
Forum: Electrical Systems 09-16-2021, 11:17 AM
Replies: 70
Views: 12,029
Posted By lr172
Yes, but your car has 3-4 times the cranking...

Yes, but your car has 3-4 times the cranking capacity of my 540. I leave it off to save the 5 amps and several HP load.

Larry
Forum: RV-10 09-16-2021, 07:30 AM
Replies: 58
Views: 8,096
Posted By lr172
I like this one. 8K btu is probably the most we...

I like this one. 8K btu is probably the most we can expect for a 12V electrical unit. If the price were right, I would consider one. I found a 90 amp alternator that I believe would fit into the...
Forum: RV-10 09-16-2021, 07:19 AM
Replies: 4
Views: 700
Posted By lr172
This must be variable a bit. I used MC seals on...

This must be variable a bit. I used MC seals on the doors and took several steps to seal up all air ingress points on the fuse. I did my phase I in winter and often had no vents open and no heat on...
Forum: Electrical Systems 09-16-2021, 07:06 AM
Replies: 70
Views: 12,029
Posted By lr172
Same here, though don't use the PP. The 6 has...

Same here, though don't use the PP. The 6 has 800 trouble free hours with this procedure.
Forum: RV-10 09-15-2021, 07:50 AM
Replies: 58
Views: 8,096
Posted By lr172
I am still anxiously waiting for you to share the...

I am still anxiously waiting for you to share the details of your AC installation. Your post from a year ago was very intriguing with lighter weight components.

Larry
Forum: RV Ongoing Maintenance Issues 09-15-2021, 07:20 AM
Replies: 9
Views: 448
Posted By lr172
WHen the co-pilot presses the PTT, do only the...

WHen the co-pilot presses the PTT, do only the other crew hear the audio or does it also transmit on the radio?

If you have a conventionally wired jack, with both PTT and Mic lo connections, via a...
Forum: RV General Discussion/News 09-14-2021, 08:18 AM
Replies: 12
Views: 823
Posted By lr172
Seems every rule has an exception. This one...

Seems every rule has an exception. This one seems to apply universally.
Forum: Traditional Aircraft Engines 09-13-2021, 08:03 AM
Replies: 15
Views: 733
Posted By lr172
Do you remember if the inside bore of the relief...

Do you remember if the inside bore of the relief assembly was the same size as the ball or larger (about 1.5 X ball size)? I assume there was no cage sticking out around the tappered seat on the...
Forum: Traditional Aircraft Engines 09-13-2021, 07:51 AM
Replies: 15
Views: 733
Posted By lr172
Your relief system MUST have some way of holding...

Your relief system MUST have some way of holding the ball centered over the tapered seat, otherwise you get high psi at idle and low psi at high RPM. It is either a cage attached to the crankcase OR...
Forum: Traditional Aircraft Engines 09-13-2021, 07:47 AM
Replies: 15
Views: 733
Posted By lr172
Re-read post, as i added. Also, if you are...

Re-read post, as i added. Also, if you are getting 75 psi at idle, your problem is NOT a weak spring. The fact that you saw 100 PSI at high RPM would indicate no issues with the sump. Please...
Forum: Traditional Aircraft Engines 09-13-2021, 07:31 AM
Replies: 15
Views: 733
Posted By lr172
Let me confirm. You were getting 15 at idle and...

Let me confirm. You were getting 15 at idle and 50 at cruise for a long time. You took apart and reassembled the relief valve and the next flight, you got 75 at idle and 45 in cruise? Followed by...
Forum: Traditional Aircraft Engines 09-12-2021, 01:07 PM
Replies: 23
Views: 1,652
Posted By lr172
If it were only take off that you got the...

If it were only take off that you got the misfires, then yes excess heat could be causing fuel heat issues with extra lean or extra rich depending upon vapor lock in the pump vs boiling fuel in the...
Forum: Traditional Aircraft Engines 09-12-2021, 10:25 AM
Replies: 23
Views: 1,652
Posted By lr172
Vapor lock should be seen at take off or in the...

Vapor lock should be seen at take off or in the climb far more often than in cruise, as this is where cooling air flow is the worst. CHTs at 430 should not, in and of themselves be causing misfires...
Forum: RV General Discussion/News 09-12-2021, 08:13 AM
Replies: 3
Views: 554
Posted By lr172
I don;t believe the blocks aret nylon. I thought...

I don;t believe the blocks aret nylon. I thought they were UHMW and have natural anti-friction properties. I lubed them on the 6 and did not on the 10 and notice no difference. petroleum based...
Forum: Safety 09-12-2021, 08:03 AM
Replies: 11
Views: 1,459
Posted By lr172
While the TOD numbers seem in line with...

While the TOD numbers seem in line with expectations, the FPM rates seem really low. Even at full gross, I get substantially better than 350 at 10,000' at 130+ KTAS. I don't think I am even that...
Forum: Electronic Ignition Systems 09-11-2021, 06:53 AM
Replies: 7
Views: 1,083
Posted By lr172
I made a very similar unit, though machined the...

I made a very similar unit, though machined the shaft instead of using one from a mag when I installed a megasquirt system on my 6. I made two and dont think I will use the second one (will likely...
Forum: Primers 09-09-2021, 02:42 PM
Replies: 5
Views: 318
Posted By lr172
chemical bonding window on SPI epoxy primer is 7...

chemical bonding window on SPI epoxy primer is 7 days, NOT 30. after 7 days, it must be scuffed and another coat of primer added.
Forum: Traditional Aircraft Engines 09-08-2021, 11:08 AM
Replies: 3
Views: 516
Posted By lr172
I did both of my cases with loctite anaerobic...

I did both of my cases with loctite anaerobic sealant & no silk thread (think it was 515 or 517)) and both have been leak free.

Larry
Forum: RV Building Tips/Techniques 09-08-2021, 08:01 AM
Replies: 8
Views: 728
Posted By lr172
re: alignment, I know that the leg fairings are...

re: alignment, I know that the leg fairings are very sensitive to alignment and even a small error will create yaw. The horizontal alignment of the pants will also create some yaw, but I believe not...
Forum: Midwest 09-08-2021, 07:55 AM
Replies: 6
Views: 387
Posted By lr172
I went to LMO last summer for a wedding and had a...

I went to LMO last summer for a wedding and had a good experience. Gas was cheaper and fees lower than BJC. Runways are shorter, but no issue for an RV.

Larry
Forum: RV General Discussion/News 09-08-2021, 07:18 AM
Replies: 6
Views: 1,448
Posted By lr172
The tosten is a bit unique with the post style...

The tosten is a bit unique with the post style mount.

I can make you an angled grip mount to your angle specifications that would slide into the existing post, if interested. I have been doing a...
Forum: RV General Discussion/News 09-07-2021, 11:19 AM
Replies: 27
Views: 2,339
Posted By lr172
+1 I would go 30 miles from the base station...

+1

I would go 30 miles from the base station with a different plane and see if it receives from the base station.

Larry
Forum: Electronic Ignition Systems 09-07-2021, 07:58 AM
Replies: 3
Views: 440
Posted By lr172
generally leaner mixtures require more advance...

generally leaner mixtures require more advance and lower MAPs require more advance, though less so than leaner mixtures. There should be no need to add advance when starting at higher altitudes...
Forum: RV General Discussion/News 09-06-2021, 08:18 AM
Replies: 14
Views: 1,182
Posted By lr172
This the interpretation that I settled on. I...

This the interpretation that I settled on. I remain convinced that the FAA is not trying to limit compensated instruction in EAB for owners and delegates (the language used in the LODA) that are not...
Forum: Traditional Aircraft Engines 09-06-2021, 07:53 AM
Replies: 28
Views: 1,244
Posted By lr172
This is unlikely. If the dynon were set up for a...

This is unlikely. If the dynon were set up for a 50 PSI sensor, it would mean he is getting 130-140 PSI actual pressure at cruise, when the dynon repots 45. The fact that he sometimes reads 55 PSI...
Forum: Traditional Aircraft Engines 09-06-2021, 07:45 AM
Replies: 28
Views: 1,244
Posted By lr172
It is probably easiest to just remove the OP...

It is probably easiest to just remove the OP sensor and replace with your gauge. If the builder used the Vans sender block, there is probaby and extra hole with a plug in it that you can remove and...
Forum: Traditional Aircraft Engines 09-05-2021, 08:26 AM
Replies: 28
Views: 1,244
Posted By lr172
I am guessing that you would, but it would have...

I am guessing that you would, but it would have been there from day 1. It sounds like this was a new titan engine and I would really hope that ECI or continental would have confirmed good oil...
Forum: RV-10 09-05-2021, 08:16 AM
Replies: 11
Views: 783
Posted By lr172
Pretty sure Vans gets those cushions from Oregon...

Pretty sure Vans gets those cushions from Oregon Aero, but unsure if they will sell them direct to the public. Would be surprised if Vans doesn't sell them outside of the finishing kit.

Larry
Forum: Reviews 09-05-2021, 08:05 AM
Replies: 53
Views: 5,601
Posted By lr172
My experience: I had several small knicks on my...

My experience:

I had several small knicks on my catto prop before I put on the tape 700 hours ago. Not a single knick, dent or dimple since installing the tape. My experience shows the tape to be...
Forum: RV General Discussion/News 09-05-2021, 08:01 AM
Replies: 14
Views: 1,182
Posted By lr172
Assuming you are asking about the DPE and not the...

Assuming you are asking about the DPE and not the CFI. No LODA is required for a check ride. DPE's are excluded from pretty much all the limitations related to instructing, including compensation...
Forum: Reviews 09-04-2021, 01:41 PM
Replies: 53
Views: 5,601
Posted By lr172
Have to disagree. The prop tape is the same as...

Have to disagree. The prop tape is the same as the clear tape used on the front of cars to prevent rock chips in the paint. In this application, softer is better. It absorbs energy, assuming it is...
Forum: Traditional Aircraft Engines 09-04-2021, 01:03 PM
Replies: 28
Views: 1,244
Posted By lr172
I would argue that you could pull off the...

I would argue that you could pull off the pressure relief assembly and inspect it in less time than it takes to purchase and install an oil pressure gauge.
Forum: Traditional Aircraft Engines 09-04-2021, 01:00 PM
Replies: 28
Views: 1,244
Posted By lr172
How did you adjust it? Clockwise or counter...

How did you adjust it? Clockwise or counter clockwise? I fear you are saying that 3/4 of the stud is showing after your last adjustment.
Forum: Traditional Aircraft Engines 09-04-2021, 12:38 PM
Replies: 28
Views: 1,244
Posted By lr172
Could be the spring in the pressure relief...

Could be the spring in the pressure relief assembly broke or there is debris trapped between the ball and the seat. You could also have the wrong type of relief assembly and the ball is popping off...
Forum: RV Building Tips/Techniques 09-04-2021, 12:33 PM
Replies: 6
Views: 393
Posted By lr172
Probably based upon the inspector. I put mine...

Probably based upon the inspector. I put mine high on the baggage bulkhead adn the FSDO guy had no issue with it, though I did have the warning label on the panel. I have seen some on the top...
Forum: Alternative Engines 09-04-2021, 10:57 AM
Replies: 37
Views: 4,053
Posted By lr172
I don't really get the attraction. Burns quite a...

I don't really get the attraction. Burns quite a bit more fuel. Haven't run the numbers after factoring in lower cost of Jet A, but doubt it is a savings. Then you need to haul more gas for same...
Forum: GPS 09-04-2021, 09:47 AM
Replies: 2
Views: 132
Posted By lr172
Not positive, but guessing that one of the serial...

Not positive, but guessing that one of the serial ports is configured for TIS-a traffic. If you change that port to NONE, the message should go away. The manual tells you how to get into...
Forum: RV Ongoing Maintenance Issues 09-03-2021, 12:57 PM
Replies: 20
Views: 2,645
Posted By lr172
Gap is WAY to big. recommend replacement. Build...

Gap is WAY to big. recommend replacement. Build up is unclear, but need to confirm if that plug is even creating a spark. If not, that could account for the build up, though it could be several...
Forum: RV-10 09-01-2021, 06:48 AM
Replies: 16
Views: 1,256
Posted By lr172
I did not do this. However, I would try to mount...

I did not do this. However, I would try to mount the handle where the top is solid vs where it has a foam core, as this can get a significant side loading in addition to a pulling force. Not sure...
Forum: RV-10 08-31-2021, 07:45 AM
Replies: 18
Views: 2,558
Posted By lr172
I have had one that was stubborn. I hit the...

I have had one that was stubborn. I hit the left, inboard side of the tire with my palm, then the right; repeat X 100. Each tap moved the bearing a tiny amount.

Be carefull not to hit the wheel...
Forum: Autopilots 08-30-2021, 10:56 AM
Replies: 13
Views: 881
Posted By lr172
thanks. I didn't pay enough attention to all the...

thanks. I didn't pay enough attention to all the detail in the post
Forum: ADS-B 08-30-2021, 10:51 AM
Replies: 8
Views: 863
Posted By lr172
I use an ipad with cellular. Just before T/O I...

I use an ipad with cellular. Just before T/O I am using the cell signal to get radar. Then the 3+ minutes to get adsb radar is not so bad. Though at my airport (8 mi from ORD) the signal is so...
Forum: RV-14 08-30-2021, 07:38 AM
Replies: 16
Views: 1,070
Posted By lr172
Don't buy another PP. MANY reports similar to...

Don't buy another PP. MANY reports similar to yours on this site.
Forum: Autopilots 08-30-2021, 07:35 AM
Replies: 13
Views: 881
Posted By lr172
The G3x can be sensitive to button pressing. I...

The G3x can be sensitive to button pressing. I think if you hit the trim button, it will disengage. This has happened to me a few times and it was because I touched something. Also, is your torque...
Forum: RV-10 08-30-2021, 07:20 AM
Replies: 19
Views: 1,915
Posted By lr172
This is a challenging decision. With high flex...

This is a challenging decision. With high flex materials, the joint moves around (stretches, squeezes, etc.) to absorb the excess expansion/contraction of the acrylic. With low flex materials, you...
Forum: RV-10 08-30-2021, 07:14 AM
Replies: 19
Views: 1,915
Posted By lr172
I used 4 or 5 1/8" clecos to hold the window on. ...

I used 4 or 5 1/8" clecos to hold the window on. I needed a minimum adhesive depth, so CA glued some washers around the holes in the F/G. However, I drilled through the plexi for the clecos, as I...
Forum: RV General Discussion/News 08-30-2021, 07:09 AM
Replies: 4
Views: 606
Posted By lr172
Typically in that style of alternator, the F is...

Typically in that style of alternator, the F is the Field lead and it goes to the field lead on the Reg. Those Regs are pretty standard and google should help you figure out which of the 4 terminals...
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