X-Virus-Scanned: clean according to Sophos on Logan.com From: "Bill Bradburry" Received: from vms173019pub.verizon.net ([206.46.173.19] verified) by logan.com (CommuniGate Pro SMTP 6.1.8) with ESMTPS id 8340451 for flyrotary@lancaironline.net; Wed, 20 Jan 2016 11:55:36 -0500 Received-SPF: pass receiver=logan.com; client-ip=206.46.173.19; envelope-from=bbradburry@verizon.net Received: from Desktop ([173.71.14.135]) by vms173019.mailsrvcs.net (Oracle Communications Messaging Server 7.0.5.32.0 64bit (built Jul 16 2014)) with ESMTPA id <0O1900LM7GC68F50@vms173019.mailsrvcs.net> for flyrotary@lancaironline.net; Wed, 20 Jan 2016 10:55:19 -0600 (CST) X-CMAE-Score: 0 X-CMAE-Analysis: v=2.1 cv=WcjxEBVX c=1 sm=1 tr=0 a=YsSROtz1JO3+GnD2bqMDlQ==:117 a=o1OHuDzbAAAA:8 a=oR5dmqMzAAAA:8 a=7aQ_Q-yQQ-AA:10 a=r77TgQKjGQsHNAKrUKIA:9 a=Ia-xEzejAAAA:8 a=oCcaPWc0AAAA:8 a=hJoXCX98n_FKff0ElzcA:9 a=CjuIK1q_8ugA:10 a=SSmOFEACAAAA:8 a=yMhMjlubAAAA:8 a=V5AuA6aWTMgxQaJr8xYA:9 a=-mPaHnI5ErfK4Ei_:21 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 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 10:55:18 -0600 Message-id: <18A5B49F1C1D469F817F4E8C4A9716A7@Desktop> MIME-version: 1.0 Content-type: multipart/alternative; boundary="----=_NextPart_000_0009_01D15371.0D5291E0" X-Mailer: Microsoft Office Outlook 11 Thread-index: AdFTl21WbXHWSYrjQQ2BIsK9VNyvXQACl4qg X-MIMEOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 This is a multi-part message in MIME format. ------=_NextPart_000_0009_01D15371.0D5291E0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Bobby, Thanks for going to all this effort. I will check the switches out. My switches are mounted just above the PCM so they are handy for that but I have recently discovered that I wish I had mounted the PCM close to the throttle. When I need to change the mixture with the same hand that I have on the stick, things get awkward. :>) being able to reach up from the throttle with a finger and roll the mixture would be much better. Changing the subject a minute.How do you disable the secondary's when the engine is staged?? They are not running anyway??? Bill _____ 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_0009_01D15371.0D5291E0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Bobby,

 

Thanks for going to all this = effort.  I will check the switches out. 

 

My switches are mounted just above = the PCM so they are handy for that but I have recently discovered that I wish I = had mounted the PCM close to the throttle.  When I need to change the = mixture with the same hand that I have on the stick, things get awkward.  = :>)  being able to reach up from the throttle with a finger and roll the = mixture would be much better.

 

Changing the subject a = minute…How do you disable the secondary’s when the engine is staged??  They = are not running anyway???

 

Bill

 

 

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,

 <= /o:p>

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. =

 <= /o:p>

Quick = Connect Options:

 <= /o:p>

32NT91-3    2 position DPDT-

32NT91-1&nbs= p;   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.

 <= /o:p>

NT series = can be purchased for $20.00

 <= /o:p>

More = expensive Milspec  switches.  

 <= /o:p>

2TL91-3 = ;  2 position DPDT

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

 <= /o:p>

 <= /o:p>

Bobby

 <= /o:p>

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@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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