X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 04 Jul 2007 14:42:49 -0400 Message-ID: X-Original-Return-Path: Received: from sccrmhc15.comcast.net ([204.127.200.85] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2158089 for lml@lancaironline.net; Wed, 04 Jul 2007 13:27:04 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.200.85; envelope-from=rbelshe@comcast.net Received: from desk (c-71-202-1-125.hsd1.ca.comcast.net[71.202.1.125]) by comcast.net (sccrmhc15) with SMTP id <2007070417260701500j0d4se>; Wed, 4 Jul 2007 17:26:07 +0000 From: "Bob B." X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] LNC2 hydraulic pump turns on when gear is down at regular intervals??? X-Original-Date: Wed, 4 Jul 2007 10:25:10 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_006C_01C7BE25.9A600580" X-Mailer: Microsoft Office Outlook, Build 11.0.6353 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 Thread-Index: Ace+MZJEiVSe18owSFymWYcfoK7KhQALgv9w In-Reply-To: X-Original-Message-ID: This is a multi-part message in MIME format. ------=_NextPart_000_006C_01C7BE25.9A600580 Content-Type: text/plain; charset="windows-1250" Content-Transfer-Encoding: 7bit Matt, I went through the same problem, with the pump "blipping" about every 4-5 seconds. In my case it only happened when the gear was down. I checked all the cylinders first, believing that the dump valve could not leak in one direction only. The problem was the dump valve. In my installation it was very easy to test by remove the dump valve and closing off the lines with some spare fittings. This cured the "blipping". Lancair sells a valve rated at higher pressure, but it is slightly larger and a lot heavier. I chose to replace mine with the same valve, figuring I can replace it again in 8 years if need be. Bob Belshe Moraga, CA 1992 Lancair 235/320 750hrs. _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Matt Reeves My hydraulic pump turns on when the gear is down at regular intervals about every minute and it stays on for about 1 second. It does not do this when the gear is up. I don't think there is an internal leak in the cylinders. No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.476 / Virus Database: 269.10.0/886 - Release Date: 7/4/2007 1:40 PM ------=_NextPart_000_006C_01C7BE25.9A600580 Content-Type: text/html; charset="windows-1250" Content-Transfer-Encoding: quoted-printable

Matt,

I went through = the same=20 problem, with the pump "blipping" = about=20 every 4-5 seconds. In my case it only happened when the gear was=20 down.

I checked all the = cylinders=20 first, believing that the dump valve could not leak in one direction=20 only.

The problem was the dump valve. In my installation it = was very=20 easy to test by remove the dump valve and closing off the lines with = some spare=20 fittings. This cured the "blipping". Lancair sells a valve rated at = higher=20 pressure, but it is slightly larger and a lot heavier. I chose to = replace mine=20 with the same valve, figuring I can replace it again in 8 years if need = be.

Bob Belshe

Moraga, CA

1992 Lancair=20 235/320 750hrs.


From: Lancair Mailing List=20 [mailto:lml@lancaironline.net] On Behalf Of Matt=20 Reeves
My hydraulic pump turns on when the gear is down at regular = intervals=20 about every minute and it stays on for about 1 second.
 
It does not do this when the gear is up.   
 
I don't think there is an internal leak in the cylinders.
 

No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.5.476 / Virus Database: 269.10.0/886 - Release Date: 7/4/2007 = 1:40 PM

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