X-Virus-Scanned: clean according to Sophos on Logan.com From: "Bobby J. Hughes" Received: from [207.91.159.28] (HELO barracuda.qnsi.net) by logan.com (CommuniGate Pro SMTP 6.1.8) with ESMTP id 8340055 for flyrotary@lancaironline.net; Wed, 20 Jan 2016 10:29:43 -0500 Received-SPF: pass receiver=logan.com; client-ip=207.91.159.28; envelope-from=btv1==82779d589c2==bhughes@qnsi.net X-ASG-Debug-ID: 1453303754-0276451c80b4b30001-fw4j19 Received: from mail.qnsi.net ([10.0.0.5]) by barracuda.qnsi.net with ESMTP id wRbbTBweNSVug1sv for ; Wed, 20 Jan 2016 09:29:14 -0600 (CST) X-Barracuda-Envelope-From: bhughes@qnsi.net Content-class: urn:content-classes:message Return-Receipt-To: "Bobby J. Hughes" MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01D15397.5157A00A" Subject: RE: [FlyRotary] Re: What do you think may be happening? Disposition-Notification-To: "Bobby J. Hughes" X-ASG-Orig-Subj: RE: [FlyRotary] Re: What do you think may be happening? Date: Wed, 20 Jan 2016 09:29:13 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.5 Message-ID: <74120FDE88CAFE4DBDA8814BCE20A3F3A1A27E@qnsi-mail.qnsi.net> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: What do you think may be happening? Thread-Index: AdFTIfSluUfNfkAaTVSzfSogpxHNoQAczjIw References: To: "Rotary motors in aircraft" X-Barracuda-Connect: UNKNOWN[10.0.0.5] X-Barracuda-Start-Time: 1453303754 X-Barracuda-URL: http://10.0.0.4:8000/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at qnsi.net X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=1000.0 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.26298 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message This is a multi-part message in MIME format. ------_=_NextPart_001_01D15397.5157A00A Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Bill, =20 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.=20 =20 Quick Connect Options: =20 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.=20 =20 NT series can be purchased for $20.00 =20 More expensive Milspec switches. =20 =20 2TL91-3 2 position DPDT 2TL91-7 3 position DPDT - center position is off =20 =20 Bobby =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]=20 Sent: Tuesday, January 19, 2016 7:29 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: What do you think may be happening? =20 Dennis, =20 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. =20 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. =20 The injectors pull pretty high amps I think pretty close to the switch capacity. Does anyone know how many amps the injectors pull? =20 Is there a switch with pretty high capacity that is on-on with push tabs that I could substitute? =20 Bobby suggested some Honeywell switches but they are not on-on and don't accept the push tabs. =20 Bill =20 =20 ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]=20 Sent: Friday, January 15, 2016 10:44 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: What do you think may be happening? =20 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. =20 I want to thank Steven Boese, Bobby Hughes and Mark Steitle for all their help in diagnosing this problem.=20 =20 I never could make the switch fail during ground run testing! =20 Dennis H. =20 ________________________________ 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_001_01D15397.5157A00A Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

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?

 

De= nnis,

 

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.

 

Th= e 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?

 

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

 

Bi= ll  

 

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

------_=_NextPart_001_01D15397.5157A00A--