Return-Path: Received: from [129.116.87.170] (HELO MAIL01.austin.utexas.edu) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 765323 for flyrotary@lancaironline.net; Tue, 01 Mar 2005 15:47:17 -0500 Received-SPF: none receiver=logan.com; client-ip=129.116.87.170; envelope-from=mark.steitle@austin.utexas.edu X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C51E9F.BF71091F" Subject: RE: [FlyRotary] Re: testing injectors Date: Tue, 1 Mar 2005 14:46:31 -0600 Message-ID: <87DBA06C9A5CB84B80439BA09D86E69EC08002@MAIL01.austin.utexas.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: testing injectors Thread-Index: AcUend5Ysp4cqHUIQ0ywUMhsNdFVFAAALdeQ From: "Mark R Steitle" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C51E9F.BF71091F Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Paul, Someone suggested slamming the injector down on a 2 x 4 to free it up. I think the objective here is to try to persuade the plunger to activate. I think this would be most effective if you directed the forces in the direction of plunger travel. Seems it would take less force and there would be less chance of damage to the injector. If I understand how injectors function, you would want to turn it upside down and hit the inlet side against the board. =20 Or, you could order a new injector. ;-) =20 Mark =20 ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Paul Sent: Tuesday, March 01, 2005 2:30 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: testing injectors =20 Thanks, Mark. I'm thinking that if I put it in a vise, I might be able to un-flatten it. I will remember the carb cleaner trick. Thanks again. Paul Conner =20 ----- Original Message -----=20 From: Mark R Steitle =20 To: Rotary motors in aircraft =20 Sent: Tuesday, March 01, 2005 7:53 AM Subject: [FlyRotary] Re: testing injectors =20 Paul, My injectors sat for quite a while and got all dried out inside. There must have been some gasoline left in the fuel rails and injectors that dried out over time. When I went to use them, they wouldn't "click". I sprayed some carb cleaner into the inlets and let it sit and soften up the gasoline residue. Tested them again (+12v) and they started working and seem fine now. No, I didn't try the 16# hammer approach. ;-) =20 =20 Mark S. =20 =09 ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Paul Sent: Monday, February 28, 2005 8:23 PM To: Rotary motors in aircraft Subject: [FlyRotary] testing injectors =20 I recall someone posting that you could test to see if an injector is firing by just attaching 12 volts + and - to the two pins of the injectors, and you should hear a click. Is this a very subtle click, or fairly loud and easy to hear? I have the peak and hold type injectors if that matters at all. (72 lb/hr). I touched the two wires to the injector's pins, and I believe I was only hearing the faint spark caused by the wires making contact. After about 5 seconds with the two wires still touching the pins, the injector got pretty hot. Sound terminal or normal?=20 I called Dave Atkins and he said to send the injector to him, and he would check it out. If need be, he has replacement injectors. Don't know the cost (don't really care, just want one). Sounded like he was in a hurry, so I didn't keep him on the phone. Thanks for any info you guys might have to offer regarding testing the injectors, etc. Paul Conner =09 ________________________________ No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 266.5.2 - Release Date: 2/28/2005 ------_=_NextPart_001_01C51E9F.BF71091F Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Paul,

Someone suggested slamming the = injector down on a 2 x 4 to free it up.  I think the objective here is to = try to persuade the plunger to activate.  I think this would be most effective if = you directed the forces in the direction of plunger travel.  Seems it = would take less force and there would be less chance of damage to the = injector.  If I understand how injectors function, you would want to turn it upside = down and hit the inlet side against the board.

 

Or, you could order a new = injector.  ;-)

 

Mark

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Paul
Sent: Tuesday, March 01, = 2005 2:30 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = testing injectors

 

Thanks, Mark.  I'm thinking that if I put it in = a vise, I might be able to un-flatten it. I will remember the carb cleaner = trick. Thanks again.  Paul Conner

 

----- Original Message ----- =

From: Mark R Steitle =

Sent: = Tuesday, March 01, 2005 7:53 AM

Subject: = [FlyRotary] Re: testing injectors

 

Paul,

My injectors sat for quite a while = and got all dried out inside.  There must have been some gasoline left in = the fuel rails and injectors that dried out over time.  When I went to use = them, they wouldn’t “click”.  I sprayed some carb = cleaner into the inlets and let it sit and soften up the gasoline residue.  = Tested them again (+12v) and they started working and seem fine now.  No, I didn’t try the 16# hammer approach.  ;-)  =  

 

Mark = S.

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Paul
Sent: Monday, February = 28, 2005 8:23 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] = testing injectors

 

I recall someone posting that you could test to see = if an injector is firing by just attaching 12 volts + and - to the two pins of = the injectors, and you should hear a click.  Is this a very subtle = click, or fairly loud and easy to hear?  I have the peak and hold type = injectors if that matters at all. (72 lb/hr).  I touched the two wires to the injector's pins, and I believe I was only hearing the faint spark caused = by the wires making contact.  After about 5 seconds with the two wires = still touching the pins, the injector got pretty hot. Sound terminal or = normal? 

      I called Dave Atkins = and he said to send the injector to him, and he would check it out. If need be, = he has replacement injectors. Don't know the cost (don't really care, just want = one). Sounded like he was in a hurry, so I didn't keep him on the phone. = Thanks for any info you guys might have to offer regarding testing the injectors, = etc.  Paul Conner

No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 266.5.2 - Release Date: = 2/28/2005

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