X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 50 [XX] (67%) URL: contains host with port number (33%) HTML: title tag is empty Return-Path: Received: from ms-smtp-01.southeast.rr.com ([24.25.9.100] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2048806 for flyrotary@lancaironline.net; Wed, 16 May 2007 22:32:34 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-103-061.carolina.res.rr.com [24.74.103.61]) by ms-smtp-01.southeast.rr.com (8.13.6/8.13.6) with SMTP id l4H2VkES026126 for ; Wed, 16 May 2007 22:31:47 -0400 (EDT) Message-ID: <001601c7982b$bedfeb70$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Gold Plated Pins Date: Wed, 16 May 2007 22:33:23 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0011_01C7980A.36B75D30" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0011_01C7980A.36B75D30 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks, Dale for the information on ready available dielectric grease. Ed ----- Original Message -----=20 From: Dale Rogers=20 To: Rotary motors in aircraft=20 Sent: Wednesday, May 16, 2007 10:22 PM Subject: [FlyRotary] Re: Gold Plated Pins Hi All, FWIW department: Since the time that Ford came out with=20 computerized engine controls, the connectors have been filled with=20 dielectric grease. Every auto parts store has the stuff. The Ford = part=20 number is D7AZ-19A331-A It isn't cheap, but a 3 oz. tube might=20 very well be a lifetime supply for most of us. I'm only guessing, but I'd guess that a dollop of the stuff in each = connector would pretty much preclude corrosion of the pins. I'm=20 not running yet (test stand) but that's what I'm doing. Dale R. COZY MkIV #1254=20 Bob White wrote:=20 On Wed, 16 May 2007 17:35:19 -0400 "Ed Anderson" wrote: Thanks, Bob. I went with tin as my research indicated that was more than suitable - = in=20 fact I think (if memory serves me) that aircraft wire is tin coated to=20 prevent the copper oxidizing. My plug is exposed to moisture when the=20 canopy is open, rain/dew, etc. Also, I did not use any corrosion = preventive=20 such as grease or spray so given all that, perhaps the news is that it = held=20 up so well for so long. So given its been over 10 years, I guess gold is not a requirement = {:>).=20 Wow! $1200 and its not even solid gold {:>) =20 I found corrosion on the Molex connectors in the wing spar on the BD-4 when I had it apart. It was completed in '79. I replaced them with new Molex connectors. I think I would have opted for the sealed ones if I had them readily available although I didn't even try to find any at the time. The $1200 is for a LOT of pins. Each pin only cost about 2X what the tin plated ones cost. Some sort of grease to keep moisture out of the connection might help. I did a quick search of Bob Nuckolls site but couldn't find any recommendations for it. The other day someone asked about how to clamp the wires on DB connectors on Bob's list. I told him to wrap them with silicone tape. I thought I had figured that out myself, but a little later Bob N. answered with a link to a picture showing the technique. I'm sure I saw that picture a couple of years ago. It works real good anyway. Bob W. =20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_0011_01C7980A.36B75D30 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Thanks, Dale for the information = on ready=20 available dielectric grease.
 
Ed
----- Original Message -----
From:=20 Dale = Rogers
Sent: Wednesday, May 16, 2007 = 10:22=20 PM
Subject: [FlyRotary] Re: Gold = Plated=20 Pins

Hi All,

   FWIW department:  = Since the=20 time that Ford came out with
computerized engine controls, the = connectors=20 have been filled  with
dielectric grease.  Every auto = parts=20 store has the stuff.  The Ford part
number is=20 D7AZ-19A331-A   It isn't cheap, but a 3 oz. tube might =
very well=20 be a lifetime supply for most of us.

   I'm only = guessing,=20 but I'd guess that a dollop of the stuff in each
connector would = pretty=20 much preclude corrosion of the pins.  I'm
not running yet = (test=20 stand) but that's what I'm doing.

Dale R.
COZY MkIV #1254=20


Bob White wrote:=20 
On Wed, 16 May 2007 17:35:19 -0400
"Ed Anderson" <eanderson@carolina.rr.com&g=
t; wrote:

  
Thanks, Bob.

I went with tin as my research indicated that was more than suitable - =
in=20
fact I think (if memory serves me) that aircraft wire is tin coated to=20
prevent the copper oxidizing.  My plug is exposed to moisture when the=20
canopy is open, rain/dew, etc.  Also, I did not use any corrosion =
preventive=20
such as grease or spray so given all that, perhaps the news is that it =
held=20
up so well for so long.

  So given its been over 10 years, I guess gold is not a requirement =
{:>).=20
Wow! $1200 and its not even solid gold {:>)

    

I found corrosion on the Molex connectors in the wing spar on the BD-4
when I had it apart.  It was completed in '79.  I replaced them with
new Molex connectors.  I think I would have opted for the sealed ones
if I had them readily available although I didn't even try to find any
at the time.  The $1200 is for a LOT of pins.  Each pin only cost
about 2X what the tin plated ones cost.  Some sort of grease to keep
moisture out of the connection might help.  I did a quick search of
Bob Nuckolls site but couldn't find any recommendations for it.

The other day someone asked about how to clamp the wires on DB
connectors on Bob's list.  I told him to wrap them with silicone tape.
I thought I had figured that out myself, but a little later Bob N.
answered with a link to a picture showing the technique.  I'm sure I
saw that picture a couple of years ago.  It works real good anyway.

Bob W.


  

--

Homepage:  http://www.flyrotary.com/

Archive and UnSub:   =
http://mail.lancaironline.net:81/lists/flyrotary/List.html
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