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Firewall shields

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dean.psiropoulos(at)veriz
Guest

Posted: Sun Jul 22, 2007 8:58 pm Post subject: Firewall shields

Question on stainless steel firewall shields.  I'm using two of them, one

covers my EGT/CHT harness (8 cables each containing two individual insulated

thermocouple wires surrounded by a yellow or brown cover of, I believe,

tefzel).  The second one covers my VM-1000 sensor cables (half dozen 4

conductor with foil shield and tefzel outer cover).  



The CHT/EGT hole in the stainless firewall has a plastic busing installed

and the harness fits through this bushing slightly snug and the firewall

shield just fits around the whole thing without having to squeeze the shield

against the wires.



The sensor cables make use of a hole I originally cut through the firewall

for an eye-ball control cable mount.  The hole is quite large and a bushing

would still leave the harness not centered in the firewall shield and

sitting on the thin firewall shield material.



I've cleaned up the shear marks and smoothed the edges on the firewall

shields but am still a bit nervous about the thin material chaffing the

wires, especially the large sensor wire hole.  Any thoughts/ideas on this?

Am I being too paranoid?  Since we can no longer procure asbestos to make

gaskets to go under the shield what is everyone doing here?  Are you using

some sort of grommet over the edges of the stainless shields to protect your

cables from chaffing....or?  Thanks.



Dean Psiropoulos

RV-6A N197DM

Last of the wiring.

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ronschreck

Joined: 04 Aug 2006
Posts: 192
Location: Gold Hill Airpark, NC (NC25)

Posted: Mon Jul 23, 2007 3:42 am Post subject: Firewall shields

Dean,



I used a few wraps of exhause wrap around my wire bundles and then a bit of RTV to anchor them firmly in the firewall shield.  Works great!  Checkk out the link to Pegasus Racing:



http://www.pegasusautoracing.com/productselection.asp?Product=1827&iorb=4764

Ron Schreck

RV-8 "Miss Izzy"

Gold Hill Airpark, NC

*********************************************************************************************



      Question on stainless steel firewall shields.  I'm using two of them, one

      covers my EGT/CHT harness (8 cables each containing two individual insulated

      thermocouple wires surrounded by a yellow or brown cover of, I believe,

      tefzel).  The second one covers my VM-1000 sensor cables (half dozen 4

      conductor with foil shield and tefzel outer cover).  

      

      The CHT/EGT hole in the stainless firewall has a plastic busing installed

      and the harness fits through this bushing slightly snug and the firewall

      shield just fits around the whole thing without having to squeeze the shield

      against the wires.

      

      The sensor cables make use of a hole I originally cut through the firewall

      for an eye-ball control cable mount.  The hole is quite large and a bushing

      would still leave the harness not centered in the firewall shield and

      sitting on the thin firewall shield material.

      

      I've cleaned up the shear marks and smoothed the edges on the firewall

      shields but am still a bit nervous about the thin material chaffing the

      wires, especially the large sensor wire hole.  Any thoughts/ideas on this?

      Am I being too paranoid?  Since we can no longer procure asbestos to make

      gaskets to go under the shield what is everyone doing here?  Are you using

      some sort of grommet over the edges of the stainless shields to protect your

      cables from chaffing....or?  Thanks.

      

      Dean Psiropoulos

      RV-6A N197DM

      Last of the wiring.

- The Matronics RV-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV-List

sportav8r(at)gmail.com
Guest

Posted: Mon Jul 23, 2007 6:31 pm Post subject: Firewall shields

Excellent ideas for SS tubing and firesleeve pass-thru's on the Aero-Electric matronics list.  That;s what I'll be retrofitting to when I get the chance.



-Bill B



On 7/23/07,  Ron Schreck <ronschreck(at)windstream.net (ronschreck(at)windstream.net)> wrote:[quote] --> RV-List message posted by: Ron Schreck <ronschreck(at)windstream.net (ronschreck(at)windstream.net)>

Dean,



I used a few wraps of exhause wrap around my wire bundles and then a bit of RTV to anchor them firmly in the firewall shield.  Works great!  Checkk out the link to Pegasus Racing: 



http://www.pegasusautoracing.com/productselection.asp?Product=1827&iorb=4764

Ron Schreck

RV-8 "Miss Izzy" 

Gold Hill Airpark, NC

*********************************************************************************************



      Question on stainless steel firewall shields.  I'm using two of them, one 

      covers my EGT/CHT harness (8 cables each containing two individual insulated

      thermocouple wires surrounded by a yellow or brown cover of, I believe,

      tefzel).  The second one covers my VM-1000 sensor cables (half dozen 4 

      conductor with foil shield and tefzel outer cover).



      The CHT/EGT hole in the stainless firewall has a plastic busing installed

      and the harness fits through this bushing slightly snug and the firewall 

      shield just fits around the whole thing without having to squeeze the shield

      against the wires.



      The sensor cables make use of a hole I originally cut through the firewall

      for an eye-ball control cable mount.  The hole is quite large and a bushing 

      would still leave the harness not centered in the firewall shield and

      sitting on the thin firewall shield material.



      I've cleaned up the shear marks and smoothed the edges on the firewall 

      shields but am still a bit nervous about the thin material chaffing the

      wires, especially the large sensor wire hole.  Any thoughts/ideas on this?

      Am I being too paranoid?  Since we can no longer procure asbestos to make 

      gaskets to go under the shield what is everyone doing here?  Are you using

      some sort of grommet over the edges of the stainless shields to protect your

      cables from chaffing....or?  Thanks.



  [quote][b]

- The Matronics RV-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV-List

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