X-Virus-Scanned: clean according to Sophos on Logan.com From: "Patrick" Received: from mout.perfora.net ([74.208.4.197] verified) by logan.com (CommuniGate Pro SMTP 6.1.8) with ESMTPS id 8340389 for flyrotary@lancaironline.net; Wed, 20 Jan 2016 11:41:39 -0500 Received-SPF: none receiver=logan.com; client-ip=74.208.4.197; envelope-from=patrick@hoffmann1.net Received: from D8USMCHMJ375WC ([173.161.59.81]) by mrelay.perfora.net (mreueus003) with ESMTPSA (Nemesis) id 0MeRTt-1aV3a22x27-00QDrX for ; Wed, 20 Jan 2016 17:41:21 +0100 To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: What do you think may be happening? Date: Wed, 20 Jan 2016 10:41:19 -0600 Message-ID: <018701d153a1$64df7060$2e9e5120$@hoffmann1.net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0188_01D1536F.1A477160" X-Mailer: Microsoft Outlook 15.0 Content-Language: en-us Thread-Index: AQFM58djTQbzUR+qD/BE/WvmJLeECaANZXmQ X-Provags-ID: V03:K0:hLx80/u6CctAnnb4IKnsoi82rXipXhkhXAfrohmM7ghgNqriv8t l7zDvv5DspWC533X/3HH62nf5/zsKDpjmr/6MhX9e+/4jQm4WqQEvr6DJDa3bGo86GNdwY0 /y09eL82jlAVIz/lGqawj2NNYKcGVOJbYJUVRVFttn7PTSaCHnzhDfFneO1QfhWa9RkCMV9 SpMhlckRt/FPjFTTyV0NA== X-UI-Out-Filterresults: notjunk:1;V01:K0:J6UPWwIwgSI=:Itf/WBVD8Z2l0ppHTSJC7O zt0hDraGyY/wdyWVwBZsyY4CmxzB3A7Kuj2bS5pCdMWgKUJ5oWQKuEwTjcGds9fIaKUqz1fK6 pd3SoDdgdsBqXqUxTRNptUblKE5LZqynp/M4cTo/C3AWI7t5YitaURPrHxY9YD0nF9erphpi8 sUeQqdkGbjlneRwFLnZX0WQLmW3bhOVKmmKTEZNVzWMgUVyJr8LqDr3da4C5Ge0RCRGtfU2Qw g9cQ8sdzawJVYiCftGrE7mjw5DZIZieLfjrZ40uyhUbZ61sxej9tUlaee2aMnwC1TCGFrvKuA OqDja4iaPku0NdPJJW6T17Nb3dCIT6ukDZVeuI4nMgaKm9Sw6B58Ku9PRvSGns3QCEaZstruy mndopaF114TbY1PGkyx/gzwwBkS6zZ0PsHjXSII6YiDZ/xzXW5vjQcBoxfmeOn2dNEOaIpCMQ 0U9nsDOaQh+W7NIkjNuZL/CXSftbMS9bDS/ufM4fw1Cwjorikuf1iEtd8ZJo7JlxxDoyqm9/y IXp67odLnghvdghCBrvM+Xl/HnQxDdaIiCVmphiYOoDY3FQje9AeFD6pI82fb66yjX2nVs91f KDOCs86Wazi2DRg2M3akqTOdcfv1oX/DPZujwPRzvy/kWYQ5TqXPSEl8HJr7R2MDEazVstofT iL9L4Bobei9smxW+r5oeabe8E2orj/eOWrneT0bm9WkDJ3z0VxTCMb/0DvaiBcWwXeX7tJuqD 2hdASJMLdMCXzSkB This is a multipart message in MIME format. ------=_NextPart_000_0188_01D1536F.1A477160 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Try Digikey.com. They have a good filter. Make sure you look for 10A DC rated switches, which is usually about 20A AC. Regards, Patrick From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] Sent: Wednesday, January 20, 2016 9:29 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: What do you think may be happening? Bill, The Honeywell Switch select filters are not working. Go to their site and search on these part numbers. Spec sheets are available. Both NT and TL "standard" series switches appear to use silver cadmium. Not sure if that's a good thing or if better contact material is available. Quick Connect Options: 32NT91-3 2 position DPDT- 32NT91-1 3 position DPDT - center position is off. I use these but had to add a guard above the switches to keep from turning them off in flight. I mounted my injector switches directly below the EFIS knobs. NT series can be purchased for $20.00 More expensive Milspec switches. 2TL91-3 2 position DPDT 2TL91-7 3 position DPDT - center position is off Bobby From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] Sent: Tuesday, January 19, 2016 7:29 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: What do you think may be happening? Dennis, I discovered today that my secondary injector disable switch was bad. Flipping the switch gave no continuity either way. After flipping it back and forth several times, it began to make a high resistance contact. I guess the movement caused the contacts to clean off a little. I am using the Carling S700 series switch espoused by Bob Nuckolls and sold by B & C. This was a 2-3 switch that is double pole and is on-on. These switches are pretty inexpensive.$7.50 each. I was getting ready to order a couple more switches and got to thinking about it. The injectors pull pretty high amps I think pretty close to the switch capacity. Does anyone know how many amps the injectors pull? Is there a switch with pretty high capacity that is on-on with push tabs that I could substitute? Bobby suggested some Honeywell switches but they are not on-on and don't accept the push tabs. Bill _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] Sent: Friday, January 15, 2016 10:44 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: What do you think may be happening? What type of switch are you using to disable the primary and secondary injectors? I was using "rocker" switches and I found they failed to make good contact - failed "open". This would turn off the one set of injectors but not tell the computer to double the on time of the other injectors. I replaced all my switches rocker switches with "snapping" toggle switches. I want to thank Steven Boese, Bobby Hughes and Mark Steitle for all their help in diagnosing this problem. I never could make the switch fail during ground run testing! Dennis H. _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2016.0.7303 / Virus Database: 4489/11415 - Release Date: 01/16/16 ------=_NextPart_000_0188_01D1536F.1A477160 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Try Digikey.com.  They have a good filter.   Make sure = you look for 10A DC rated switches, which is usually about 20A = AC.

 

 

Regards,

Patrick

 

 

From:<= /b> = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] =
Sent: Wednesday, January 20, 2016 9:29 AM
To: = Rotary motors in aircraft
Subject: [FlyRotary] Re: What do you = think may be happening?

 

Bill,

 

The Honeywell Switch select filters are not working. Go to their site = and search on these part numbers. Spec sheets are available. Both NT and = TL “standard” series switches appear to use silver cadmium. = Not sure if that’s a good thing or if better contact material is = available.

 

Quick Connect Options:

 

32NT91-3    2 position DPDT-

32NT91-1    3 position DPDT – center position = is off. I use these but had to add a guard above the switches to = keep from turning them off in flight. I mounted my injector switches = directly below the EFIS knobs.

 

NT series can be purchased for $20.00

 

More expensive Milspec  switches.  

 

2TL91-3   2 position DPDT

2TL91-7   3 position DPDT – center position is = off

 

 

Bobby

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironlin= e.net]
Sent: Tuesday, January 19, 2016 7:29 = PM
To: Rotary motors in aircraft
Subject: = [FlyRotary] Re: What do you think may be = happening?

 

Denn= is,

 

I = discovered today that my secondary injector disable switch was = bad.  Flipping the switch gave no continuity either way.  = After flipping it back and forth several times, it began to make a high = resistance contact.  I guess the movement caused the contacts to = clean off a little.

 

I = am using the Carling S700 series switch espoused by Bob Nuckolls and = sold by B & C.  This was a 2-3 switch that is double pole and = is on-on.  These switches are pretty inexpensive…$7.50 = each.  I was getting ready to  order a couple more switches = and got to thinking about it.

 

The = injectors pull pretty high amps I think pretty close to the switch = capacity.  Does anyone know how many amps the injectors = pull?

 

Is = there a switch with pretty high capacity that is on-on with push tabs = that I could substitute?

 

Bobb= y suggested some Honeywell switches but they are not on-on and = don’t accept the push tabs.

 

Bill=  

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironlin= e.net]
Sent: Friday, January 15, 2016 10:44 = PM
To: Rotary motors in aircraft
Subject: = [FlyRotary] Re: What do you think may be = happening?

 

What type of = switch are you using to disable the primary and secondary = injectors?  I was using  "rocker" switches and I = found they failed to make good contact - failed  = "open".  This would turn off the one set of injectors but = not tell the computer to double the on time of the other = injectors.  I replaced all my switches  = rocker switches with "snapping" toggle = switches.

 

I want to = thank Steven Boese, Bobby Hughes and Mark Steitle for all their help in = diagnosing this problem.

 

I never could = make the switch fail during ground run = testing!

 

Dennis = H.

 

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.7303 / = Virus Database: 4489/11415 - Release Date: = 01/16/16

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