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proper cable for engine instrument

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apg86

Joined: 12 Feb 2007
Posts: 22
Location: KAJO Corona CA

Posted: Sun Sep 07, 2008 7:54 pm Post subject: proper cable for engine instrument

I need to run the cables for the engine monitor. Which is the better cable to run I want to have at least 20 leads for a 6 cylinder engine with turbo and fuel flow. I'm thinking to get the G3 from http://www.insightavionics.com/g3.htm

any suggestion



Thanks for the advice

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_________________
Andrew P Geraghty
Corona CA

nuckolls.bob(at)cox.net
Guest

Posted: Mon Sep 08, 2008 6:34 am Post subject: proper cable for engine instrument

At 08:54 PM 9/7/2008 -0700, you wrote:

 	  Quote: 	
		  



I need to run the cables for the engine monitor. Which is the better cable 

to run I want to have at least 20 leads for a 6 cylinder engine with turbo 

and fuel flow. I'm thinking to get the G3 from 

http://www.insightavionics.com/g3.htm

any suggestion



Thanks for the advice


	


   In the big iron birds, this kind of instrument

   would be installed using factory bundles of

   individual wires . . . ESPECIALLY when part

   of that installation is thermocouple wire.



   See what the installation manual calls for

   first. I suspect it will suggest built-up

   bundles. Use 22759 for the copper, and

   the good stuff . . .



http://www.omega.com/ppt/pptsc.asp?ref=XC_K_TC_WIRE&Nav=temh06



   for thermocouples.



   Bob . . .



        ----------------------------------------)

        ( . . .  a long habit of not thinking   )

        ( a thing wrong, gives it a superficial )

        ( appearance of being right . . .       )

        (                                       )

        (                  -Thomas Paine 1776-  )

        ----------------------------------------

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steve(at)tomasara.com
Guest

Posted: Tue Sep 09, 2008 5:00 am Post subject: proper cable for engine instrument

Bob,



Recently, you have made a couple references to solid thermocouple grade 

wire (via Omega website links), rather than the stranded thermocouple 

extension grade wire I was planning on using, for long runs from 

thermocouple to the instrument.  What is the advantages/disadvantages of 

one over the other for these long runs?  I based my thinking on an 

understanding that stranded is more durable than equal sized solid in 

aircraft applications.



Thanks,



Steve Stearns

Boulder/Longmont, Colorado

CSA,EAA,IAC,AOPA,PE,ARRL,BARC (but ignorant none-the-less)

Restoring (since 1/07): N45FC O235 Longeze Cothern/Friling CF1 (~1000 Hrs)

Flying (since 9/86): N43732 A65 Taylorcraft BC12D

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nuckolls.bob(at)cox.net
Guest

Posted: Tue Sep 09, 2008 10:20 am Post subject: proper cable for engine instrument

At 05:55 AM 9/9/2008 -0600, you wrote:

 	  Quote: 	
		  



Bob,



Recently, you have made a couple references to solid thermocouple grade 

wire (via Omega website links), rather than the stranded thermocouple 

extension grade wire I was planning on using, for long runs from 

thermocouple to the instrument.  What is the advantages/disadvantages of 

one over the other for these long runs?  I based my thinking on an 

understanding that stranded is more durable than equal sized solid in 

aircraft applications.


	


   Either is fine. I have both on the shelves. I prefer stranded

   20AWG wire for crimping into d-sub pins but the preference

   is subtle . . . I perceive a tiny advantage in smaller strands

   yielding to a gas-tight crush within the pin.



   If you have access to solid, don't go buy stranded to

   replace it. But if you're ordering from scratch, the

   stranded is a bit more attractive.



   Bob . . .

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