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Search: Posts Made By: Larry DeCamp
Forum: RV Building Tips/Techniques Yesterday, 01:47 PM
Replies: 4
Views: 240
Posted By Larry DeCamp
SV1 is a good part

installed two in my RV4 cheek cowls. They are solid, stable and glued to glass cheek cows with epoxy.
Forum: VAF Classifieds (posts in here deleted after 30 days) Yesterday, 01:40 PM
Replies: 3
Views: 256
Posted By Larry DeCamp
Dimpler for you.

Got two. One is yours. decamplarry@gmail.com
Forum: Reviews 02-22-2021, 05:23 AM
Replies: 16
Views: 1,766
Posted By Larry DeCamp
Auto transition from ROP to LOP ?

Please educate me regarding the risks and benefits. I have one of those SWITCHES to accomplish the task.
Forum: RV-3 02-19-2021, 08:27 PM
Replies: 5
Views: 332
Posted By Larry DeCamp
Leaks are a priority

As Paul says, the standard muff/ firewall valve puts heat in. My biggest source of cold air was the rear canopy to fuse seal and flap pushrod holes. Foam does a pretty good job on flap rod leaks. I...
Forum: Traditional Aircraft Engines 02-19-2021, 05:28 AM
Replies: 12
Views: 959
Posted By Larry DeCamp
Crankcase oil separator affect ?

There has been no mention of the affect of oil separators on this issue. When I installed the antisplat separator, oil usage dramatically reduced to negligible. But I always maintain 5-6 qt anyway....
Forum: GPS 02-17-2021, 11:22 AM
Replies: 3
Views: 251
Posted By Larry DeCamp
Metallic paint affect on GPS reception ???

Both my antenna are under the cowl. There is no doubt conductive stuff will degrade the signal reception. Any pireps on metallic paint over your GPS antenna ?
Forum: GPS 02-15-2021, 11:34 AM
Replies: 1
Views: 180
Posted By Larry DeCamp
GPS antenna spacing ?

There is significant comment that GPS antennas work well under the cowl. I recall mixed comment about spacing two, for example 26C and 35A in close proximity. Does anyone have a specific spacing...
Forum: GPS 02-12-2021, 05:49 AM
Replies: 64
Views: 3,408
Posted By Larry DeCamp
Bjdecker question re: metallic solids ?

I have often wondered when guys confirm acceptable component life and performance under the cowl, does that include metallic paint ?
Forum: GPS 02-09-2021, 04:00 PM
Replies: 8
Views: 374
Posted By Larry DeCamp
Thanks for the response.

Ironflights experience concerns me. What to do :rolleyes:
Forum: GPS 02-09-2021, 02:55 PM
Replies: 8
Views: 374
Posted By Larry DeCamp
GPS antenna question ?

Instructions for GA35 antenna to GPS20A specifies minimum 6.5 ft of cable. So I have a 7' RG400 . Instructions say you can coil the cable to fit the space allowed. Is there any problem anticipated...
Forum: Autopilots 02-09-2021, 07:46 AM
Replies: 13
Views: 1,244
Posted By Larry DeCamp
Garmin G3x / GSA 28 servo question?

I am installing the ID strap jumpers in the servo Dsub connectors. Garmin says pin 8 is a ground and can be used for both jumpers in the PITCH servo. Just double checking, is this correct ?

Also, I...
Forum: VAF Classifieds (posts in here deleted after 30 days) 02-09-2021, 05:14 AM
Replies: 4
Views: 315
Posted By Larry DeCamp
I have one for you

Just send me your address. You can send me the postage when you get it.
Larry DeCamp
decamplarry at gmail.com
Forum: Electrical Systems 02-09-2021, 05:00 AM
Replies: 8
Views: 739
Posted By Larry DeCamp
Voltage is truth

My Garmin stuff came with a very nice shunt. When ordering panel components, I ask BJ at B&C, what a shunt tells that the voltage does not. The answer is 14.2 volts is the goal and anything less is...
Forum: Electrical Systems 02-09-2021, 04:40 AM
Replies: 20
Views: 1,613
Posted By Larry DeCamp
More options

B&C arguably makes the best starter. So I use the 4AWG cable they sell for the task. This may not be optimum for a 12ft cable on rear mounted battery.

I got a great idea here on the forum for...
Forum: Traditional Aircraft Engines 02-07-2021, 06:13 AM
Replies: 28
Views: 1,396
Posted By Larry DeCamp
Thanks to all

Great ideas. I will apply them asap.
First trial will be reach in and richen idle screw.
BTW, Larry vetterman advised to use 4oz of two stroke oil per ten gallons gas. Select darkest oil available...
Forum: RV Ongoing Maintenance Issues 02-07-2021, 05:48 AM
Replies: 7
Views: 567
Posted By Larry DeCamp
Scissor jacks are unstable

My RV moves around laterally a lot even using heavy hydraulic jacks meant for commercial twins. The scissor will be extended a lot, or you will need some kind extension tube/block to reach the wing...
Forum: Traditional Aircraft Engines 02-06-2021, 08:09 AM
Replies: 28
Views: 1,396
Posted By Larry DeCamp
No engine monitor data

Just steam gauges.:(
Forum: Traditional Aircraft Engines 02-06-2021, 06:19 AM
Replies: 28
Views: 1,396
Posted By Larry DeCamp
How to find an intake leak ?

My carb 0320 has run rough on startup recently when temp is between freezing and 40F. Boost pump, magcheck,mixture leaner, switch tanks , none of these affects the VERY rough running. I heard some...
Forum: Primers 02-04-2021, 07:24 AM
Replies: 8
Views: 930
Posted By Larry DeCamp
Plus 1 for SEM rattle can

Non Alclad Aluminum and steel obviously benefit from etch/wash primer. But when that gets scratched between mating surfaces during fabrication and assembly, How will you keep the aircraft from...
Forum: RV-14 02-04-2021, 07:05 AM
Replies: 14
Views: 1,821
Posted By Larry DeCamp
Easy curvature match

I just cut the door out of the cowl with Dremel diamond wheel. The curf is so thin it leaves small gap than can be optimized to your preference with micro. As dan suggests, stiffeners may be required...
Forum: Glass Cockpit 01-31-2021, 03:27 PM
Replies: 3
Views: 347
Posted By Larry DeCamp
Thanks much Avanza

Is the 25 to 460 via 232 any value ??
Also, the 20A to 45R uses the same pins as the 460 to 45R. Is the 20A for WAAS 2020 compliant and the 460 just for normal Transponder performance ????
Forum: Glass Cockpit 01-30-2021, 04:31 PM
Replies: 3
Views: 347
Posted By Larry DeCamp
G3x transponder 232 input question ?

The documents show the ADHRS input on all diagrams. But, they show the GDU460 or GPS20A in separate documents.
* I assume for a 2020 compliant system, the 20A should be routed to the 45R transponder...
Forum: RV-4 01-28-2021, 10:58 AM
Replies: 39
Views: 17,405
Posted By Larry DeCamp
How does the fuse breath ?

A fabric cover at the HS to block air raises the question, How does warm air and cold air ( cabin comforts) get out ? That said, the canopy, flaps etc. probably leak air from the pressurized cockpit....
Forum: RV-3 01-22-2021, 08:02 PM
Replies: 10
Views: 804
Posted By Larry DeCamp
Are there facts for this dilemma ?

There is a history of opinions about this topic. Earthx understandably leans toward “(lawyer speak)” and offers a vented system. The OP rationale follows my current practice:
* Voltage regulator has...
Forum: Glass Cockpit 01-18-2021, 01:29 PM
Replies: 6
Views: 800
Posted By Larry DeCamp
G3x Power & Grounding ?

Several LRU's show multiple power and ground ports on the Dsub. Specifically, I am working with the GTX45R pinouts. I assumed this was available for redundancy/security. However, A SteinAir...
Forum: Glass Cockpit 01-16-2021, 04:03 PM
Replies: 6
Views: 800
Posted By Larry DeCamp
Thanks much guys.

Will study and get back with any questions.
Forum: Glass Cockpit 01-16-2021, 11:55 AM
Replies: 6
Views: 800
Posted By Larry DeCamp
G3EXPERT question for GTX45R

Need help to understand Dsub fabrication. The unit came with a tray and the transponder. The only parts for install are some male and female pins. The G3xtouch install manual only refers to GSU25...
Forum: RV General Discussion/News 01-14-2021, 08:24 PM
Replies: 8
Views: 974
Posted By Larry DeCamp
BH response

MR STEWART, at Kosh told me years ago that auto fuel has injector cleaners in the recipe that 100LL does not. That is why my paint peeled off when the primer was accessible due to lack of protection...
Forum: Electrical Systems 01-14-2021, 04:00 PM
Replies: 34
Views: 3,031
Posted By Larry DeCamp
A question for the more seasoned pilots

I have read on this forum :
* Why would you reset a breaker in the air ? It is telling you something is not good and it did its job. Go land if you can't do without that function and troubleshoot.
*...
Forum: Electrical Systems 01-14-2021, 03:31 PM
Replies: 7
Views: 590
Posted By Larry DeCamp
Pilot2512 question ?

Please educate me. Why are there three wires plus what appears to be a shield grounded at both ends ( wing skin and Db connector ??
Forum: Electrical Systems 01-14-2021, 08:47 AM
Replies: 7
Views: 590
Posted By Larry DeCamp
G3x OAT probe grounding question ?

The instructions say to ground the ring terminal against the bare clean Alclad wing skin interior. I have been running ALL grounds back to the battery bus (tabs) for good practice (No airframe...
Forum: RV-8/8A 01-07-2021, 07:50 PM
Replies: 25
Views: 2,425
Posted By Larry DeCamp
One more variable

Back to Ricks point about cooling the oil temp sensor. I have a complete cooler block with alum Plate for winter (midwest) and calibrated oil temp reads 170-180 all winter. But, my chts are...
Forum: GPS 01-06-2021, 09:26 AM
Replies: 4
Views: 473
Posted By Larry DeCamp
GA26 required ?

Stein said the 35 was required for 2020 adsb transponder and ga26c was for the G3x screen. Garmin install literature says 26c optional with 35 feeding the 20A module with can bus. Has anyone found...
Forum: RV General Discussion/News 12-16-2020, 07:30 PM
Replies: 17
Views: 2,182
Posted By Larry DeCamp
Scott, FWIW

I have an 0320 Rv3 in Indiana. Oil cooler is completely blocked off in winter with Oil temp around 160-170F. CHT’s are about 295F. Has anyone substantiated that this is a problem ?

OK, pistons...
Forum: Electrical Systems 12-12-2020, 03:17 PM
Replies: 9
Views: 835
Posted By Larry DeCamp
Toggle switch anti rotation washer install ??

I assume the little bent tab is captured in a slot or a hole. What is the best way to make the little slot/hole to clock the tab and therefore the switch body?

A file, hacksaw bade, drilled hole in...
Forum: Traditional Aircraft Engines 12-09-2020, 08:01 PM
Replies: 13
Views: 1,217
Posted By Larry DeCamp
One more perspective

All my hoses from Tom have stainless fittings and integral firesleeve. As stated, anodized AN fitting are more corrosion resistant than black steel. why not cover any aluminum fittings with...
Forum: Electrical Systems 12-05-2020, 08:09 PM
Replies: 17
Views: 1,745
Posted By Larry DeCamp
Relevant question

Can the LiFe and AGM battery share the master firewall ground point for cabin loads and engine ?
Forum: GPS 12-04-2020, 07:38 PM
Replies: 4
Views: 473
Posted By Larry DeCamp
Thanks much Levi

Will do. 👍
Forum: GPS 12-04-2020, 12:40 PM
Replies: 4
Views: 473
Posted By Larry DeCamp
Garmin DA26C routing question ?

I have been persuaded here on VAF to mount a GA26C antenna under the cowling. The connector is relatively large for firewall pass thru. Does anyone have suggestions for how to get through the...
Forum: Electrical Systems 11-21-2020, 06:35 AM
Replies: 10
Views: 1,148
Posted By Larry DeCamp
Show planes

One feature of ShowPlanes I like is ‘one touch’ UP function. You dont have to hold the switch for a go-around.
Forum: RV-6/6A 11-20-2020, 07:14 PM
Replies: 6
Views: 938
Posted By Larry DeCamp
Food for thought

3m 2216 and other epoxies are less brittle tnan West . Might be worth considering for the wood to gear leg bond.
Forum: RV-3 11-16-2020, 07:31 PM
Replies: 9
Views: 1,397
Posted By Larry DeCamp
Messed up holes

All thoughts above worth considering ! Something to consider is a doubler could be installed over the oversized/ripped holes. That said, to avoid the need for a complete bulkhead replacement ( big...
Forum: Safety 11-12-2020, 12:05 PM
Replies: 43
Views: 5,086
Posted By Larry DeCamp
LR172...fender washers ?

Sorry Larry, can you elaborate on washers ? I cannot get a picture in my mind.
Forum: Safety 11-12-2020, 11:26 AM
Replies: 43
Views: 5,086
Posted By Larry DeCamp
Thanks LR172

This is more complex with a ShowPlanes FPS involved . If the SB safety wire failed, or even allowed shaft oscillation upon reversal, it would trash the notched rod that sets the various flap...
Forum: Safety 11-12-2020, 08:00 AM
Replies: 43
Views: 5,086
Posted By Larry DeCamp
Help, what am I missing?

I just completed this installation on my RV4. I dont understand how the actuator shaft can unscrew off the Heim joint stud. The Heim ball is constrained from rotating by the two flat linkage bars. My...
Forum: RV-4 11-09-2020, 09:07 AM
Replies: 0
Views: 524
Posted By Larry DeCamp
ShowPlanes FPS install problem, need suggestions.

The flap actuator is Vans circa 2000, installed per supplied diagram. The ShowPlanes controller system requires a notched rod driver clamped where the Vans UHMW guide block resides. This can be...
Forum: Electronic Ignition Systems 11-02-2020, 01:42 PM
Replies: 2
Views: 479
Posted By Larry DeCamp
EI cpu power supply distribution ?

There is tons of discussion and thoughtful variants on how best to power EI CPU's for the most reliable safe options. Examples include :

Battery (#1 & #2 ) direct to separate engine busses...
Forum: RV Ongoing Maintenance Issues 10-30-2020, 05:58 AM
Replies: 9
Views: 928
Posted By Larry DeCamp
Suggestion

I just completed this very task. Food for thought :

Use a dremel composite cutting disc to creat the depression. Cuts nicely in the metal mesh.

Think about Ultrablack silicone as the “potting...
Forum: RV-7/7A 10-24-2020, 01:54 PM
Replies: 9
Views: 1,653
Posted By Larry DeCamp
Something to add to the equation

Painting the interior affects some other things. Installing cable, wires etc from the panel rearward will require some processes that may scratch paint. Also, you may not prefer painting over cables,...
Forum: RV Building Tips/Techniques 10-24-2020, 12:22 PM
Replies: 12
Views: 1,181
Posted By Larry DeCamp
Add to Kyle's point

You can use proseal,3M2216, JBweld and other semi-rigid epoxies to complement the Hinge/rivet/cowl interface.
Forum: RV Building Tips/Techniques 10-24-2020, 11:24 AM
Replies: 12
Views: 1,181
Posted By Larry DeCamp
Just food for thought

I did not build the cowling on my 3B, but I noticed one rivet was working loose over time. This sensitized me to the challenge of a better way. So on my 4 project, I bonded glass tape inside the cowl...
Forum: RV Building Tips/Techniques 10-24-2020, 09:01 AM
Replies: 6
Views: 1,505
Posted By Larry DeCamp
Brands ?

Thanks guys. I will pursue all these suggestions.
Like primer wars, I am sure everyone has their personalized success preferences. PPG, Axalta and Spies Hecker are my local sources.
There is a...
Forum: RV Building Tips/Techniques 10-24-2020, 05:51 AM
Replies: 6
Views: 1,505
Posted By Larry DeCamp
Paint stripe tape edge elimination ?

My objective is to have tape line edges, in the paint, smooth under a clearcoat. Basecoat tape lines could be minimized with sanding before clearcoat.

The problem is most paint systems prescribe a...
Forum: Traditional Aircraft Engines 10-21-2020, 05:58 AM
Replies: 17
Views: 2,658
Posted By Larry DeCamp
Reference Malons comment re: safety wire

The hose clamp / safety wire option on NAPA/WIX filters is a comforting, easy option. However, per Malons comment, if you oil the gasket and tighten as much as you can with bare hands, you cannot get...
Forum: Traditional Aircraft Engines 10-20-2020, 07:05 AM
Replies: 17
Views: 2,658
Posted By Larry DeCamp
Filter options

Rocket Bob recommended NAPA 1515 years ago. Wix makes filters for NAPA I am told. O,rielly sells the Wix labled 1515 also.
Forum: Traditional Aircraft Engines 10-18-2020, 07:46 PM
Replies: 9
Views: 1,307
Posted By Larry DeCamp
Just FYI

My Vans sensor/ gauge would read .? To 4psi. I replaced with UMA sensor and gauge and get 4 to 7 psi. Nothing changed and engine runs great, so go figure 😒
Forum: RV-12/RV-12iS 10-18-2020, 11:29 AM
Replies: 44
Views: 8,504
Posted By Larry DeCamp
Ignition off in flight

LR172 provides a very informative point about magneto function, thanks.

I sequentially OFF my Pmags in flight ( one at a time) to optimize leaning. My EGT readings were all over the place with my...
Forum: Fuel Injection Systems 10-11-2020, 06:03 AM
Replies: 14
Views: 1,539
Posted By Larry DeCamp
Maybe SDS is small enough ?

The throttle body looks small. Check with Ross for dimensions .
Forum: Electrical Systems 09-28-2020, 03:41 PM
Replies: 10
Views: 1,940
Posted By Larry DeCamp
Why incorporate a master relay ?

I have been corresponding an RV builder regarding system plan for dual EI. I have some schematics from Dan H suggesting direct battery connections for EI #1 and EI#2, independent of master relay. ...
Forum: Electronic Ignition Systems 09-28-2020, 09:14 AM
Replies: 12
Views: 1,472
Posted By Larry DeCamp
+1 for Toolbuilder comment

I have two Pmags and in my opinion, the only reason to use them is ease of installation to replace a mag. That said, you probably need new plug wires. I cannot imagine anything more reliable and...
Forum: Electronic Ignition Systems 09-26-2020, 05:54 PM
Replies: 11
Views: 1,609
Posted By Larry DeCamp
Trade offs

I have one bird with dual pmags and one with dual SDS ignition, so my perspective is not vendor biased !
You are trading gear backlash, bearing condition concerns, hot circuit boards, wimpy terminal...
Forum: RV Ongoing Maintenance Issues 09-26-2020, 10:47 AM
Replies: 9
Views: 969
Posted By Larry DeCamp
Thanks Dennis

I already split the weights in two adjacent holes and after washers and many adjustments got to .05 . It appears to be an infinite iterative process complicated by the minimum weight of an AN3 bolt...
Forum: RV Ongoing Maintenance Issues 09-26-2020, 09:30 AM
Replies: 9
Views: 969
Posted By Larry DeCamp
Thanks Dave

You are right, the starting point was.33 with balanced engine and new Catto 3blade. It is noticeably smoother on ground run, but I did not fly yet.
Two questions:
How much variance ( IPS ) should I...
Forum: RV Ongoing Maintenance Issues 09-26-2020, 07:54 AM
Replies: 9
Views: 969
Posted By Larry DeCamp
Dynavibe technique optimization ?

I used my Dynavibe the first time and it is amazingly simple to operate, but the optimization process is a little tedious 🤔 it appears that the best solution will usually end up with weight added...
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