X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 05 Feb 2012 08:31:02 -0500 Message-ID: X-Original-Return-Path: Received: from imr-da01.mx.aol.com ([205.188.105.143] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTP id 5382017 for lml@lancaironline.net; Fri, 03 Feb 2012 16:12:55 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.188.105.143; envelope-from=Sky2high@aol.com Received: from mtaomg-ma04.r1000.mx.aol.com (mtaomg-ma04.r1000.mx.aol.com [172.29.41.11]) by imr-da01.mx.aol.com (8.14.1/8.14.1) with ESMTP id q13LCCQH016616 for ; Fri, 3 Feb 2012 16:12:12 -0500 Received: from core-mtb004a.r1000.mail.aol.com (core-mtb004.r1000.mail.aol.com [172.29.234.205]) by mtaomg-ma04.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id C8CFAE00008C for ; Fri, 3 Feb 2012 16:12:11 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: <6b3e.28171dfc.3c5da7ab@aol.com> X-Original-Date: Fri, 3 Feb 2012 16:12:11 -0500 (EST) Subject: Re: [LML] Re: VM1000 MAP sensor unit question X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_6b3e.28171dfc.3c5da7ab_boundary" X-Mailer: AOL 9.6 sub 168 X-Originating-IP: [67.175.156.123] x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:509571296:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d290b4f2c4dab6b4e --part1_6b3e.28171dfc.3c5da7ab_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Mark, Thanks, we'll see if that does it. Scott In a message dated 2/3/2012 12:51:45 P.M. Central Standard Time, mjrav@comcast.net writes: Hi Scott, My graybeard mechanic recommends cleaning fuel injectors with Hoppe's gun solvent by soaking overnight. It works like a charm. Mark ----- Original Message ----- From: _Sky2high@aol.com_ (mailto:Sky2high@aol.com) To: _lml@lancaironline.net_ (mailto:lml@lancaironline.net) Sent: Friday, February 03, 2012 1:10 PM Subject: [LML] VM1000 MAP sensor unit question The EPI 800 and VM 1000 manifold pressure "sensor" consists of a brass block that is pipe thread tapped for a fitting connected to the MAP source on one side and the actual pressure sensor mounted on the other side that is electrically connected to the VM computer. Imbedded in the block is a porous metallic "restrictor" with the purpose of "smoothing" rapid fluctuations in the pressure and protecting the fragile actual sensor. If this restrictor becomes clogged with miniscule particulate, it further dampens pressure changes so that the MAP indication does not change rapidly as pressure rises or hardly at all as the pressure drops. At some steady state the MAP indication seems correct and the actual sensor seems to be operating properly. I.E. The tested pressure eventually makes it past the restrictor. One of the ways to fix this is to clean the restrictor. Here is where I need help. Because the restrictor mesh is so fine, what chemicals and what procedure is best used to clean and restore the restrictor? Should a vibrating parts/jewelry cleaner be used? It cannot just be soaked and blown out. Thanks, Scott Krueger ____________________________________ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.926 / Virus Database: 271.1.1/4183 - Release Date: 02/03/12 02:34:00 --part1_6b3e.28171dfc.3c5da7ab_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Mark,

Thanks, we'll see if that does it.

Scott

In a message dated 2/3/2012 12:51:45 P.M. Central Standard Time,=20 mjrav@comcast.net writes:

=

Hi Scott,

My graybeard mechanic recommends cleaning fuel injectors with Hoppe'= s gun=20 solvent by soaking overnight.

It works like a charm.

Mark

----- Original Message -----

F= rom:=20 Sky2high@aol.com

To: lml@lancaironline.net

Sent: Friday, February 03, 2012 = 1:10=20 PM

Subject: [LML] VM1000 MAP sensor= unit=20 question

The EPI 800 and VM 1000 manifold pressure "sensor" consists of a b= rass=20 block that is pipe thread tapped for a fitting connected to the=20 MAP source on one side and the actual pressure sensor mounted on t= he=20 other side that is electrically connected to the VM computer.

Imbedded in the block is a porous metallic "restrictor" with = the=20 purpose of "smoothing" rapid fluctuations in the pressure and=20 protecting the fragile actual sensor.

If this restrictor becomes clogged with miniscule particulate, it= =20 further dampens pressure changes so that the MAP indication does not ch= ange=20 rapidly as pressure rises or hardly at all as the pressure drops. = At=20 some steady state the MAP indication seems correct and the actual senso= r=20 seems to be operating properly. I.E. The tested pressure=20 eventually makes it past the restrictor.

One of the ways to fix this is to clean the restrictor. Here= is=20 where I need help. Because the restrictor mesh is so fine, what= =20 chemicals and what procedure is best used to clean and restore&nbs= p;the=20 restrictor? Should a vibrating parts/jewelry cleaner be used?&nbs= p; It=20 cannot just be soaked and blown out.

Thanks,

Scott Krueger

No virus found in this incoming message.
Checked by AVG -= =20 www.avg.com
Version: 9.0.926 / Virus Database: 271.1.1/4183 - Relea= se=20 Date: 02/03/12=20 02:34:00
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