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From: "Joe Ewen" <jewen@comporium.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-2191829@logan.com>
Subject: Re: [FlyRotary] Re: EM2/EC2 question/update/vent/etc
Date: Sat, 21 Jul 2007 20:52:54 -0400
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Chris,

If you need more pins and want to save a couple of bucks, Steinair.com has 
the same pins and sockets as the B&C , but for $25.00 per hundred as 
compared to B&C at $30 / 100 for the pins and $43 / 100 for the sockets.  I 
used the steinair pin/sockets for about 200 Dsub connections for signal, 
avionics and computer connections in my 173 without any issues.  I have also 
used these at work in industrial environments running 24/7 with no issues.

Joe


----- Original Message ----- 
From: "Christopher Barber" <CBarber@TexasAttorney.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Saturday, July 21, 2007 8:01 PM
Subject: [FlyRotary] Re: EM2/EC2 question/update/vent/etc


> Thanks Bob....and the rest of y'all.
>
> Due to some training I have on my regular days off of Monday and Tuesday, 
> I
> happen to be off tomorrow, Sunday, and I will see what I can do.
>
> The pins I have are the B&C with little colored bands around the end where
> the wire go in.  I am using 20 AWG wire and using the little self
> ratcheting, round headed crimp tool that has four evenly spaced prongs 
> that
> come together to evenly crimp the  pin.
>
> I shall try again and continue to learn as I go.
>
> I am guessing...well, using my base common sense, that the weird EM 
> display
> issues scream bad wiring. Correct?
>
> I can't tell ya how much I enjoy and appreciate y'all being a big part of 
> my
> project.  Thanks.
>
> All the best,
>
> Chris
>
> Christopher Barber
> Attorney and Counselor at Law
> 5110 Bissonnet, No 418
> Bellaire, Texas 77401
>
> Serving the Needs of Senior Texans
>
> 281-464-LAWS (5297)
> 281-754-4168 Fax
> www.TexasAttorney.net
>
> -----Original Message-----
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
> Behalf Of Bob White
> Sent: Saturday, July 21, 2007 4:31 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: EM2/EC2 question/update/vent/etc
>
>
> Hi Chris,
>
> If you are using the right crimp tool and the proper wire size for the
> pins, you should have good results.  The solder connectors would be a
> real challenge to do a good job in place.  Even with the crimp pins,
> it's real easy to slip the pin into the wrong hole.  NOTE:  I just saw
> Rusty's post, now I'm not sure yours are the right pins although I
> don't see any others types on B&C. The ones Rust linked to are good.
>
> FWIW, I use the AMP series 109 connectors, page 1023 on the Mouser
> catalog.  The B&C crimp tool works well with those pins.  It makes a 4
> point crimp and ratchets to be sure enough force is applied.  Don't
> over do it.  As soon as the ratchet releases, that's enough.  Wow! It
> looks like the price of the pins has gone from 27 cents in the catalog
> to 42 cents online.  These particular connectors have small tabs that
> wraps around near the mounting holes to hold the two halves together.
> These tabs interfere with the cheap plastic backshells.  I cut a notch
> out of the backshells with an Xacto knife so that the backshells will
> slip on without interference.  You might check your connectors to see
> if they have that problem.  It might make seating the connector
> properly more difficult.
>
> For the strain relief, throw away that metal clamp that comes with the
> backshell.  They can very easily cut thru the insulation.  Use Bob
> Nuckolls technique as shown at http://tinyurl.com/2sh38w and
> http://tinyurl.com/2tzomr using silicone self adhesive tape.  Works
> great.
>
> Bob W.
>
>
> On Sat, 21 Jul 2007 14:31:13 -0600
> "Christopher Barber" <CBarber@TexasAttorney.net> wrote:
>
>> I am using the "barreled crimped D-sub connectors" that I purchased from
>> B&C.  Heck, I don't have enough hands to use those pressed steal types.
>> Maybe I will try the soldered ones, but my soldering skills are mediocre
> at
>> best...but improving <g>.
>>
>> Thanks for the feedback.
>>
>> All the best,
>>
>> Chris
>>
>> Christopher Barber
>> Attorney and Counselor at Law
>> 5110 Bissonnet, No 418
>> Bellaire, Texas 77401
>>
>> Serving the Needs of Senior Texans
>>
>> 281-464-LAWS (5297)
>> 281-754-4168 Fax
>> www.TexasAttorney.net
>>
>> -----Original Message-----
>> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
>> Behalf Of Bob White
>> Sent: Saturday, July 21, 2007 11:22 AM
>> To: Rotary motors in aircraft
>> Subject: [FlyRotary] Re: EM2/EC2 question/update/vent/etc
>>
>>
>> Hi Chris,
>>
>> Are you using solder pin or crimp pin connectors?
>>
>> Bob W.
>>
>>
>> On Sat, 21 Jul 2007 10:17:26 -0600
>> "Christopher Barber" <CBarber@TexasAttorney.net> wrote:
>>
>> > This may be more of a vent than a real question.  However, if anyone 
>> > has
>> > insight, I am willing to listen.  Also, this is NOT a complaint about
> the
>> > RWS products.  This IS an admission to my continuing developing skills
> (or
>> > lack there of) of wire systems and electrical troubleshooting.  Tracy
> has
>> > always been helpful and willing to provide even basic information.  I
> post
>> > here first to get the group wisdom and to try to spare Tracy the time 
>> > as
> I
>> > am sure that following his travels, he is currently overwhelmed with
> work
>> > and emails....even though he and Laura have been great to respond to
>> > previous and current concerns previous to this one.  Gee, he is 
>> > forgoing
>> OSH
>> > where his presence can provide for the general good of the rotary
>> community.
>> > Even though it is NOT prevalent on this list, sometimes expressing
> trouble
>> > shooting and/or proof of concept questions/concepts/experiences etc.
> some
>> > take the opportunity to go "see, that doesn't work" or makes the yet
>> > uninitiated nervous without realizing that the ability to share online
>> > OPENLY is one of the best safety devices we've got.
>> >
>> > Anyway, My engine is/was running much better now that I have plugged
> some
>> > intake leaks.  The auto tune seems to be playing nice.  However,
> following
>> a
>> > short engine run two days ago, I went to inspect the engine (FWB in my
>> Velo)
>> > and when I returned to the cabin, the EM2 was flickering.....then it
>> seemed
>> > to set itself in the calibration mode (and the bottom row of reading 
>> > are
>> > flickering and fading periodically).  I would try to clear it by 
>> > hitting
>> > abort and it would flash the main screen for about a second and then
>> return
>> > to the calibration mode, showing "coolant pressure".  Within the
>> calibration
>> > mode, the values/modes will change when I press the control buttons as
>> they
>> > should, however, when I try to get it to the main screen, it goes back
> to
>> > the calibration mode. My first thought was a bad/sticking switch/es. 
>> > So
> I
>> > replaced ALL four switches to no avail, checked the grounds and
> continuity
>> > of the wires.  No joy.  Seems too, the being in this mode "calibrated"
> my
>> > coolant temperature to zero (doh).
>> >
>> > When I started the engine (of course one of the easiest starts to date)
> in
>> > this mode, the engine was surging in a rhythmic pattern, even though
>> pretty
>> > smoothly.
>> >
>> > I am a thinkin' that tonight I will re-terminated all the d-sub pins.
>> >
>> > Oh well, back to patrol....and then to the hangar (following a brief
>> detour,
>> > hopefully brief, to the big Houston dog show to support Jana and the
> dogs
>> > she is showing.  This is her big hobby and she is usually good about
>> > supporting the plane)
>> >
>> > Thanks.  Thoughts are greatly appreciated.
>> >
>> > All the best,
>> >
>> > Chris
>> >
>> > Christopher Barber
>> > Attorney and Counselor at Law
>> > 5110 Bissonnet, No 418
>> > Bellaire, Texas 77401
>> >
>> > Serving the Needs of Senior Texans
>> >
>> > 281-464-LAWS (5297)
>> > 281-754-4168 Fax
>> > www.TexasAttorney.net
>> >
>> >
>> > --
>> > Homepage:  http://www.flyrotary.com/
>> > Archive and UnSub:
>> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>>
>>
>> --
>> N93BD - Rotary Powered BD-4 - http://www.bob-white.com
>> 3.8 Hours Total Time and holding
>> Cables for your rotary installation - http://www.roblinphoto.com/shop/
>>
>> --
>> Homepage:  http://www.flyrotary.com/
>> Archive and UnSub:
>> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>>
>>
>> --
>> Homepage:  http://www.flyrotary.com/
>> Archive and UnSub:
> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>
>
> --
> N93BD - Rotary Powered BD-4 - http://www.bob-white.com
> 3.8 Hours Total Time and holding
> Cables for your rotary installation - http://www.roblinphoto.com/shop/
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:
> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub: 
> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>