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  Topic: CHT/EGT connectors
racerjerry

Replies: 6
Views: 5420

PostForum: AeroElectric-List   Posted: Sun Dec 10, 2023 4:28 am   Subject: Re: CHT/EGT connectors
I'm no expert, but I guess the A & P was speaking about errors introduced by an extra "cold junction" introduced into the system. My GUESS is that the error would be insignificant as lo ...
  Topic: New kid on the block in automatic chargers
racerjerry

Replies: 3
Views: 411

PostForum: AeroElectric-List   Posted: Sun Sep 17, 2023 4:09 am   Subject: Re: New kid on the block in automatic chargers
My favorite trick for limiting the charging rate on small motorcycle type lead-acid batteries is to connect the charger in series with an old automotive ignition coil ballast resistor. These resisto ...
  Topic: Rotax engine mount plate
racerjerry

Replies: 7
Views: 2568

PostForum: Kolb-List   Posted: Sun Apr 16, 2023 5:33 am   Subject: Re: Rotax engine mount plate
I built my Firestar II around '94 - '96. The plans / instructions page 1 was copyrighted Dec, 1991.

Engine mount drawing (p15) is dated Jan 1993. This page shows two engine mount setups; one for ...
  Topic: How terrible is it to use a #8 ring terminal on #6 screw?
racerjerry

Replies: 1
Views: 1118

PostForum: AeroElectric-List   Posted: Mon Aug 30, 2021 4:17 am   Subject: Re: How terrible is it to use a #8 ring terminal on #6 screw
I see no problem as long as there is no interference at the terminal block barrier strips. I surely would not use a larger terminal (#10), though. The size difference probably makes it even more imp ...
  Topic: Plumbing Instruments
racerjerry

Replies: 12
Views: 5200

PostForum: AeroElectric-List   Posted: Fri Apr 16, 2021 3:28 am   Subject: Re: Plumbing Instruments
I ran into a problem with Nylon fittings about 25 years ago during my very first solo flight of my then recently completed ultralight aircraft. Most Nylon fittings are injection molded (not machined) ...
  Topic: Zeftronics Regulator Connection Question
racerjerry

Replies: 3
Views: 2640

PostForum: AeroElectric-List   Posted: Sat Jan 23, 2021 11:19 am   Subject: Re: Zeftronics Regulator Connection Question
Bob, Zeftronics offers an excellent troubleshooting guide for their voltage regulators online. The included diagrams MAY help to clear up some of the mystery; unfortunately, it's still a bit opaque f ...
  Topic: Magnetos
racerjerry

Replies: 15
Views: 7163

PostForum: AeroElectric-List   Posted: Wed Dec 30, 2020 4:18 am   Subject: Re: Magnetos
Efraim,
In order to simplify things, lets try to isolate the magnetos to see if they are EVER actually producing a spark. First, pull all the top spark plugs to insure there is NO COMPRESSION and n ...
  Topic: Magnetos
racerjerry

Replies: 15
Views: 7163

PostForum: AeroElectric-List   Posted: Sun Dec 27, 2020 4:21 am   Subject: Re: Magnetos
Efraim, I hear your frustration.

Once upon a time, when an elusive ignition problem was plaguing me, I got pissed and made a spark test fixture out of a section of aluminum angle material with (6 ...
  Topic: DC clamp meter
racerjerry

Replies: 10
Views: 8105

PostForum: AeroElectric-List   Posted: Sat May 09, 2020 3:24 am   Subject: Re: DC clamp meter
20 BUCKS WHADDAYA THINK?

https://www.harborfreight.com/automotive/battery-tools-accessories/100a-612v-battery-load-tester-61747.html

If discharge rate is too high for your application, my lo ...
  Topic: Charge Pump
racerjerry

Replies: 15
Views: 7590

PostForum: AeroElectric-List   Posted: Mon Feb 10, 2020 3:55 am   Subject: Re: Charge Pump
1 KX-155 is an OLD radio
2 KX-155 digital displays (very common failure) are no longer available as a replacement part
3 Cheaper options are available
4 VOR stations are rapidly disappearin ...
  Topic: Alternator stops working at low idle RPM
racerjerry

Replies: 11
Views: 7608

PostForum: AeroElectric-List   Posted: Sun Dec 15, 2019 4:38 am   Subject: Re: Alternator stops working at low idle RPM
How is regulator grounded? The voltage regulator must be solidly grounded in order to function. You might want to install an external ground wire from the voltage regulator case directly to the alte ...
  Topic: OVM-14 question
racerjerry

Replies: 11
Views: 7736

PostForum: AeroElectric-List   Posted: Fri Dec 06, 2019 6:53 am   Subject: Re: OVM-14 question
Reason I have circuit breakers on some items is because with a momentary switch, I can short to ground items to lighten load, which will trip the breakers reducing loads. Then if appropriate I can ret ...
  Topic: YOU BETTER HAVE A PLAN!
racerjerry

Replies: 2
Views: 2268

PostForum: AeroElectric-List   Posted: Mon Nov 18, 2019 2:23 pm   Subject: YOU BETTER HAVE A PLAN!
I value SIMPLICITY!

While Bob & Stein are absolutely correct in the previous discussion about aircraft electrical architecture, I would like to share my perspective.
Say you actually have an e ...
  Topic: FireFly Weight and Balance
racerjerry

Replies: 18
Views: 12527

PostForum: Kolb-List   Posted: Tue Aug 27, 2019 4:24 am   Subject: Re: FireFly Weight and Balance
I cannot argue with John H's success in Kolb airplanes. I do argue that while Homer's designs have proven themselves to be quite stable and forgiving, promoting the idea that weight and balance calcu ...
  Topic: TC wire and dsub
racerjerry

Replies: 4
Views: 3503

PostForum: AeroElectric-List   Posted: Sun Aug 18, 2019 3:55 am   Subject: Re: TC wire and dsub
I might be more concerned when using Type J (Iron / Constantan) thermocouples. You sure would want to make every effort to keep any moisture out and away from the iron.

Jerry King
  Topic: Bent EGT Probe Acceptable?
racerjerry

Replies: 2
Views: 3260

PostForum: AeroElectric-List   Posted: Sun Aug 18, 2019 3:38 am   Subject: Re: Bent EGT Probe Acceptable?
My guess is that there should be no problems. The temperature sensing thermocouple element is actually the welded junction of the two dissimilar metals that make up the thermocouple. Disturbing the ...
  Topic: Life Insurance
racerjerry

Replies: 16
Views: 15461

PostForum: Kolb-List   Posted: Thu Aug 08, 2019 6:59 am   Subject: Re: Life Insurance
OLD SAYING:
NEVER BE WORTH MORE DEAD THAN ALIVE
  Topic: Elevator and joystick throw
racerjerry

Replies: 7
Views: 6249

PostForum: Kolb-List   Posted: Sat Jun 29, 2019 5:36 am   Subject: Re: Elevator and joystick throw
I built a very early Firestar II. I was kinda' disappointed that control cables NOW rubbed on the bottom of the fuselage tube at the forward end. In the Kolb Newsletter of July 1, 1995, Kolb suggest ...
  Topic: ADSB one other reason....
racerjerry

Replies: 3
Views: 3727

PostForum: Kolb-List   Posted: Sat Nov 24, 2018 7:00 am   Subject: Re: ADSB one other reason....
All good points, but I refuse the cost of adding very expensive equipment that I do not need.

My one concession to the ADS-B crowd is that I will keep my transponder turned ON, so that the fools wi ...
  Topic: HKS / Firestar FLIGHT TEST resumes
racerjerry

Replies: 27
Views: 16855

PostForum: Kolb-List   Posted: Tue Nov 20, 2018 10:24 am   Subject: Re: HKS / Firestar FLIGHT TEST resumes
Bill, have you verified ignition timing is correct? That could explain a lot of things.

Also, you were concerned about getting your Firestar up on its nose. The Firestar's main wheels are locat ...
 
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