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Search: Posts Made By: molson309
Forum: Rocket 06-05-2019, 09:13 PM
Replies: 10
Views: 1,048
Posted By molson309
I gave up trying to seal mine and now use clear...

I gave up trying to seal mine and now use clear tape over the seams and screws when I am worried about rain.
Forum: RV-14 04-15-2019, 07:29 PM
Replies: 37
Views: 5,888
Posted By molson309
There's something about 6-32 that causes both...

There's something about 6-32 that causes both taps and screws to break, especially 6-32 into aluminum. Because of this I avoid 6-32 like the plague, and use 8-32 as a substitute if it's at all...
Forum: RV Ongoing Maintenance Issues 04-13-2019, 02:02 PM
Replies: 27
Views: 3,841
Posted By molson309
If you are using the VDO sender they fail by the...

If you are using the VDO sender they fail by the resistance wire wearing out at the usual place the wiper (run by pressure) sits when the engine is running. So your fuel pressure may read normally...
Forum: Electrical Systems 04-04-2019, 05:17 PM
Replies: 15
Views: 1,745
Posted By molson309
Assuming the 3 conductor wire is 2 outputs + one...

Assuming the 3 conductor wire is 2 outputs + one return(common) it would take 2 resistors, connected between each output wire and the common. The value of the resistors should be low enough to...
Forum: Safety 04-03-2019, 07:17 PM
Replies: 19
Views: 2,161
Posted By molson309
I had this happen to me in a -7A. Canopy didn't...

I had this happen to me in a -7A. Canopy didn't open all that far - just enough to make a lot of wind noise. Got squared away, set up for landing and while on downwind experimented with trying to...
Forum: Electrical Systems 04-03-2019, 06:21 PM
Replies: 15
Views: 1,745
Posted By molson309
I once worked with a guy that had a similar...

I once worked with a guy that had a similar problem. He had a music input - a mini phono plug on his instrument panel - that picked up noise when nothing was plugged into it. We fixed the problem...
Forum: RV Ongoing Maintenance Issues 03-31-2019, 05:55 PM
Replies: 27
Views: 3,841
Posted By molson309
Please be careful here - air in the fuel pressure...

Please be careful here - air in the fuel pressure line is highly unlikely to be the cause of low fuel pressure alerts. You may actually _have_ low fuel pressure, perhaps plumbing in a temporary...
Forum: RV Ongoing Maintenance Issues 03-14-2019, 08:14 PM
Replies: 19
Views: 2,143
Posted By molson309
The first thing to check is if there is high SWR...

The first thing to check is if there is high SWR on the antenna. if this is high it causes the coax to radiate RF which causes all kinds of problems.

If you have high SWR there's all kinds of...
Forum: RV-10 03-11-2019, 05:03 AM
Replies: 25
Views: 3,817
Posted By molson309
I landed the -7a once in a strong left crosswind...

I landed the -7a once in a strong left crosswind and encountered nosewheel shimmy. After the airplane slowed down the shimmy went away and I later discovered brackets holding the nosewheel to the...
Forum: RV Ongoing Maintenance Issues 03-04-2019, 07:06 PM
Replies: 15
Views: 1,551
Posted By molson309
I made the entire lines from the firewall to the...

I made the entire lines from the firewall to the calipers from Summit Racing Teflon braided SS with AN fittings bought from the same source. The hose was relatively cheap, the fittings not as much...
Forum: RV Building Tips/Techniques 01-25-2019, 06:41 PM
Replies: 46
Views: 6,974
Posted By molson309
I have found a place to use them

I have had screws holding my baffles to the cylinders - which used external tooth washers - come loose and fall off. I put Nord-Lock washers on these and since I did this no more lost screws.
Forum: Electrical Systems 11-15-2018, 07:48 PM
Replies: 11
Views: 2,942
Posted By molson309
If the BMS disconnects the battery during flight...

If the BMS disconnects the battery during flight it would cause the B&C alternator to crowbar its field due to overvoltage, tripping the field circuit breaker. You could tell if this is the case by...
Forum: Rocket 11-15-2018, 05:55 PM
Replies: 26
Views: 2,785
Posted By molson309
The design of the F1 flap system is different...

The design of the F1 flap system is different than a RV, but here's a data point. A guy oversped his flaps in a F1 Rocket a few years ago and the bolt securing the torque tube to the flap motor...
Forum: RV General Discussion/News 11-05-2018, 07:07 PM
Replies: 15
Views: 3,088
Posted By molson309
Air in the sensor line, barring a leak, won't...

Air in the sensor line, barring a leak, won't cause these symptoms. Pressure is pressure regardless of the medium. In fact air in the line will reduce pressure fluctuations at the sensor. There...
Forum: Electrical Systems 10-23-2018, 06:17 AM
Replies: 23
Views: 2,480
Posted By molson309
Save yourself future headaches and rewire them in...

Save yourself future headaches and rewire them in parallel. As has been pointed out they're designed to work with the full 12v across them. The dimming function will most likely work better this...
Forum: Trip Write-ups 10-22-2018, 05:58 PM
Replies: 3
Views: 1,419
Posted By molson309
This reminds me of a funny story

A number of years ago an FBO at KFCM put out a sign advertising their see-the-autumn-color flights near the road going by the airport. I drove by there apparently just after they put the sign...
Forum: RV-12/RV-12iS 09-04-2018, 03:58 PM
Replies: 155
Views: 48,938
Posted By molson309
I have a 327 and that's the same reason why I am...

I have a 327 and that's the same reason why I am depending on the sniffer. So far so good, I used the default settings and it's been working very well.
Forum: Fuel Injection Systems 08-25-2018, 01:52 PM
Replies: 133
Views: 27,557
Posted By molson309
Just completed install

I just got done installing this on the IO-540 parallel valve in my Rocket and have some observations:

The kit fit perfectly once I got everything lined up. Looks great and I expect it will give...
Forum: Fuel Injection Systems 07-26-2018, 08:46 AM
Replies: 133
Views: 27,557
Posted By molson309
I'd like to put a set of these on my Rocket. How...

I'd like to put a set of these on my Rocket. How do I get on the list? Thanks.
Forum: Propellers 05-29-2018, 07:41 PM
Replies: 16
Views: 4,227
Posted By molson309
In your first picture it looks like the wood prop...

In your first picture it looks like the wood prop has radial stains on it in the area of the lightening holes. Sure looks to me like some liquid/grease spun out from the hub area.
Forum: Electrical Systems 05-01-2018, 04:30 AM
Replies: 46
Views: 11,770
Posted By molson309
Other than from less cooling air from the built...

Other than from less cooling air from the built in fan, why would the rectifier section run any hotter at lower RPM?
Forum: RV Friends Who Have Passed On 03-18-2018, 01:04 PM
Replies: 26
Views: 6,635
Posted By molson309
I talked to him more than a few times while I was...

I talked to him more than a few times while I was building my Rocket, and had a wealth of practical advice.

He helped me a lot and I am sorry to hear he is gone.
Forum: RV General Discussion/News 01-22-2018, 04:05 PM
Replies: 31
Views: 3,530
Posted By molson309
Let's say that battery technology advances to the...

Let's say that battery technology advances to the point where there's enough energy in the batteries to give the airplane comparable speed and range to a IC powered one.

What I worry about is what...
Forum: RV General Discussion/News 01-21-2018, 03:21 PM
Replies: 3
Views: 721
Posted By molson309
I put mine under a floor panel. There is only...

I put mine under a floor panel. There is only one opening of any kind, it's in the floor panel next to the sidewall, and it's maybe 1/2" x 1". I was worried about wifi but I can connect to the...
Forum: ADS-B 01-14-2018, 06:27 PM
Replies: 229
Views: 41,530
Posted By molson309
After my flight today I asked for and got a FAA...

After my flight today I asked for and got a FAA report.
No failures for a 30 min flight just outside the Denver Class B.
Forum: ADS-B 01-14-2018, 12:12 PM
Replies: 229
Views: 41,530
Posted By molson309
I just got back from my first flight using the...

I just got back from my first flight using the echouat/skyfx combination in place of the Navworks 600B box.

My experience matches what previous poster have seen:


Targets disappearing and...
Forum: Electrical Systems 01-04-2018, 10:50 AM
Replies: 171
Views: 46,962
Posted By molson309
B&C regulator failure

Failed at 200 hours as evidenced by voltage alert light coming on. B&C repaired it at no cost to me.
Forum: ADS-B 01-02-2018, 01:00 PM
Replies: 229
Views: 41,530
Posted By molson309
AFAIK it's only for the EXP boxes. but I found it...

AFAIK it's only for the EXP boxes. but I found it wasn't hard to get it working - I had to push some pins out of the existing Navworx harness and push them into the connector for the supplied harness...
Forum: ADS-B 01-01-2018, 10:23 AM
Replies: 229
Views: 41,530
Posted By molson309
I've noticed at times the traffic shown through...

I've noticed at times the traffic shown through my AF4500 shows relative altitude of targets while Foreflight is showing MSL, which leads me to believe - as others have stated - that retrieving...
Forum: RV General Discussion/News 12-04-2017, 04:45 PM
Replies: 46
Views: 6,567
Posted By molson309
Interesting. I ordered mine Nov 2 and as of yet...

Interesting. I ordered mine Nov 2 and as of yet have not heard it has been shipped. Hopefully that will happen soon.
Forum: Traditional Aircraft Engines 11-27-2017, 08:07 PM
Replies: 60
Views: 9,355
Posted By molson309
Does your airbox have the AFP ring installed? My...

Does your airbox have the AFP ring installed?

My RV7 has AFP vertical induction. It's amazingly sensitive to disturbances in the airflow and it manifested itself on my airplane by the cylinders...
Forum: Traditional Aircraft Engines 11-27-2017, 06:39 PM
Replies: 60
Views: 9,355
Posted By molson309
What airbox are you using?

What airbox are you using?
Forum: Electrical Systems 11-09-2017, 07:38 PM
Replies: 55
Views: 12,211
Posted By molson309
If you crank with the alternator field on you're...

If you crank with the alternator field on you're taking away 4-5 amps of cranking power plus the added mechanical resistance of the alternator during cranking - neither of which you really want.

For...
Forum: Traditional Aircraft Engines 07-10-2017, 08:27 PM
Replies: 11
Views: 1,744
Posted By molson309
Do you have an alternate air system? On my -7A I...

Do you have an alternate air system? On my -7A I originally had the Van's magnetic alternate air door. It would come open at high power settings and disrupt the flow of air into the AFP fuel...
Forum: COMM 06-26-2017, 06:08 AM
Replies: 2
Views: 572
Posted By molson309
Try swapping in a known good IC A200 to see if...

Try swapping in a known good IC A200 to see if the problem follows the radio.
Forum: RV Ongoing Maintenance Issues 04-14-2017, 02:03 AM
Replies: 28
Views: 4,861
Posted By molson309
Both of these dissolve in avgas relatively...

Both of these dissolve in avgas relatively quickly. I once put a blob of EZ-Turn into a jar of avgas and while it looked OK a day or two later, it came completely apart when slightly disturbed.
Forum: Safety 02-17-2017, 04:59 PM
Replies: 128
Views: 71,226
Posted By molson309
Yeah - measure about 10 times, then think a while...

Yeah - measure about 10 times, then think a while before drilling.
Ok, that's a bit tongue-in-cheek, but one must be very deliberate when doing this job. It's not rocket science but you absolutely...
Forum: Electrical Systems 01-16-2017, 09:48 PM
Replies: 8
Views: 1,986
Posted By molson309
There's a big difference between turning off the...

There's a big difference between turning off the field vs. disconnecting the B lead (output) when the alternator is producing current. The former is what happens when a field switch is used, and it...
Forum: RV Ongoing Maintenance Issues 01-14-2017, 06:49 AM
Replies: 118
Views: 41,106
Posted By molson309
I had a leak on a IO360/Hartzell combination that...

I had a leak on a IO360/Hartzell combination that looked a lot like this. It turned out to be the prop seal. Oil pushed past the seal, past the ring gear, and came out on the back side then was...
Forum: RV General Discussion/News 12-04-2016, 07:18 AM
Replies: 22
Views: 5,713
Posted By molson309
That "diode" sounds like a load dump spike...

That "diode" sounds like a load dump spike suppressor. It would be a transient suppressor rated nominally above the nominal voltage output of the alternator.

Perehelion Designs is one source for...
Forum: RV General Discussion/News 10-20-2016, 05:54 PM
Replies: 86
Views: 15,706
Posted By molson309
My pet peeve: "loose" instead of...

My pet peeve: "loose" instead of "lose".
Forum: RV General Discussion/News 10-12-2016, 03:52 PM
Replies: 18
Views: 3,701
Posted By molson309
Unless you want to set a land speed record or...

Unless you want to set a land speed record or burn up your brakes, 1000 rpm is way too high when taxiing. I set my RV7A/CS idle speed such that it lopes at full retarded throttle when sitting...
Forum: COMM 10-03-2016, 06:48 PM
Replies: 6
Views: 1,988
Posted By molson309
I mounted a Garmin GPS antenna under the cowling...

I mounted a Garmin GPS antenna under the cowling on the RV7A without any kind of ground plane at all. Has worked great for over 10 years.
Forum: RV-12/RV-12iS 09-28-2016, 07:09 PM
Replies: 5
Views: 2,020
Posted By molson309
If trying another fitting doesn't work the fuel...

If trying another fitting doesn't work the fuel valve portion may not be threaded deep enough. I've fixed this problem by cutting or grinding a small piece off the threads of the male (AN 823-6D)...
Forum: RV-12/RV-12iS 09-13-2016, 09:12 PM
Replies: 32
Views: 12,460
Posted By molson309
Sounds like RF from the transmitter is getting...

Sounds like RF from the transmitter is getting into the wiring. Often this is caused by bad antenna SWR. Bad SWR can cause the coax cable between your radio and antenna to radiate RF power into...
Forum: RV General Discussion/News 09-12-2016, 09:19 PM
Replies: 80
Views: 27,459
Posted By molson309
Fearing this, I case hardened both the notch area...

Fearing this, I case hardened both the notch area and pin using Cherry Red hardening compound. I inspect both regularly and in over 200 hours of use I cannot yet detect any wear. And I am flying a...
Forum: RV Ongoing Maintenance Issues 05-25-2016, 08:40 PM
Replies: 11
Views: 3,081
Posted By molson309
I once had a piece of trash in the fuel...

I once had a piece of trash in the fuel distribution spider that caused a rough running engine. It was a curl of black rubber in one of the ports, only visible when I pulled the piston out of the...
Forum: RV General Discussion/News 05-09-2016, 05:37 PM
Replies: 310
Views: 108,685
Posted By molson309
800 hrs rv-7a no cracks

800 hrs rv-7a no cracks
Forum: Electronic Ignition Systems 02-11-2016, 06:37 AM
Replies: 21
Views: 4,137
Posted By molson309
If your problem isn't related to non-resistor...

If your problem isn't related to non-resistor wires/plugs - those will definitely generate a lot of noise - try cleaning and then coating the insides of the sparkplug boots with a light film of...
Forum: Safety 01-25-2016, 05:22 AM
Replies: 29
Views: 8,390
Posted By molson309
Are you willing to bet your life on that...

Are you willing to bet your life on that assumption?
Forum: Safety 06-12-2015, 04:58 PM
Replies: 25
Views: 11,018
Posted By molson309
I am sorry to hear this Mark though but am glad...

I am sorry to hear this Mark though but am glad you are unhurt. I assume this was your EVO Rocket?

I hate to see such a beautiful machine get damaged.
Forum: RV General Discussion/News 04-27-2015, 08:40 PM
Replies: 18
Views: 7,047
Posted By molson309
I had the Vans original alternate air door on my...

I had the Vans original alternate air door on my RV-7A. It was held closed by a magnet. I found out that under cruise or higher power it would open due to the pressure difference across the air...
Forum: RV General Discussion/News 11-10-2014, 03:13 AM
Replies: 15
Views: 3,573
Posted By molson309
Before you go to the trouble of enlarging the...

Before you go to the trouble of enlarging the hole, etc., make sure the nutplate actually has threads.

Don't ask me why I am saying this :(
Forum: Traditional Aircraft Engines 10-19-2014, 08:21 PM
Replies: 8
Views: 2,121
Posted By molson309
There is also a high frequency audio "sing" that...

There is also a high frequency audio "sing" that the rectified 3-phase output of the alternator produces, especially under load. The 60 amp B&C alternator in my RV7A - with corresponding B&C...
Forum: Glass Cockpit 09-08-2014, 07:18 AM
Replies: 8
Views: 1,913
Posted By molson309
Ah. I completely missed your statement about...

Ah. I completely missed your statement about making them yourself. I had Tim make them for me and didn't regret it. They are made from high quality materials and constructed very well. It would...
Forum: Glass Cockpit 09-07-2014, 09:13 PM
Replies: 8
Views: 1,913
Posted By molson309
I've built two planes that use it. The hub...

I've built two planes that use it. The hub handles all the low level signal interconnects and you wire the power and some auxiliary signal connections - the headphone/microphone jacks for...
Forum: COMM 07-13-2014, 07:22 AM
Replies: 7
Views: 1,032
Posted By molson309
Don't transmit without an antenna connected!

All bets are off if you try to transmit without a properly matched antenna connected to the radio. In fact this could possibly damage the radio.
If you have access to a dummy load you could try this...
Forum: Traditional Aircraft Engines 05-26-2014, 04:38 AM
Replies: 17
Views: 4,806
Posted By molson309
A method I have used in the past is to put a...

A method I have used in the past is to put a small carbide burr in a Dremel tool and then (very) carefully cutting a slot into the screw shank, enough to get a small straight blade screwdriver head...
Forum: Traditional Aircraft Engines 05-12-2014, 07:44 PM
Replies: 46
Views: 12,421
Posted By molson309
When the stumble as depicted by the graphs you...

When the stumble as depicted by the graphs you posted happened, what was the OAT?

The only thing I can think of that would cause the carb temp to rise - in conjunction with a loss of power - is the...
Forum: RV General Discussion/News 04-18-2014, 10:30 PM
Replies: 4
Views: 2,054
Posted By molson309
Flame Master (ProSeal?) shelf life data point

Back in 2009 I purchased two tubes of FlameMaster sealant from Vans. I was going to use this for sealing the firewall of my Rocket project. As it turned out I ended up using some left over ProSeal...
Forum: RV General Discussion/News 04-10-2014, 02:23 PM
Replies: 10
Views: 3,384
Posted By molson309
I don't disagree with the fuse being more...

I don't disagree with the fuse being more reliable, if properly sized. Presumably one of the reasons you do not use a starter solenoid is because of voltage drop across the contacts - how much of a...
Forum: Traditional Aircraft Engines 04-04-2014, 04:00 AM
Replies: 16
Views: 6,045
Posted By molson309
I believe this is the VDO part for the fuel pressure transducer

http://www.vdo-instruments.com/sensors/pressure-sensors-switches/pressure-sender-80-psi-floating-ground-1-8-27npt-32-1.html

80 PSI, 10-180 ohm with ground terminal.
Showing results 1 to 62 of 227

 
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