X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml Date: Wed, 22 Nov 2006 21:38:36 -0500 Message-ID: X-Original-Return-Path: Received: from imo-m21.mx.aol.com ([64.12.137.2] verified) by logan.com (CommuniGate Pro SMTP 5.1.2) with ESMTP id 1594881 for lml@lancaironline.net; Wed, 22 Nov 2006 17:13:20 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.2; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-m21.mx.aol.com (mail_out_v38_r7.6.) id q.c5d.7b27943 (30738) for ; Wed, 22 Nov 2006 17:12:57 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Wed, 22 Nov 2006 17:12:54 EST Subject: Re: [LML] Re: Electrical /Hydraulic system questionslancair235/320 X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1164233574" X-Mailer: 9.0 Security Edition for Windows sub 5330 X-Spam-Flag: NO -------------------------------1164233574 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Further to all this hydraulic pump stuff: My original pump was circa 1989 and it had the small circular reservoir. The fill/measurement method was thru a dipstick hole in the pump body where the dipstick was sealed with an o-ring. The vent recommendation was to back the dipstick off by 1 to 1.5 turns (See the Lancair 235/320/360 POH). If the reservoir was filled to the full mark, enough fluid would be expelled thru the vent to create a mess. One solution was to create a standpipe vent and the other was to only fill the reservoir to the lo mark. When I installed a newer version of the pump a few years ago, I removed the larger reservoir and attached the smaller one to the new pump so that I didn't have to re-plumb the pump connections. I also drilled a wee hole at an angle thru the dipstick head so that it could be snugged down and still provide the vent function. I do not overfill the reservoir because it is usually topped up whilst the gear is extended (i.e. the rods are outside the actuators) - remember that the reservoir will have to hold more fluid when the gear is retracted. Chris, I don't know the ID/model of my currently installed pump but I will get that info the next time I have to crawl in the back and look at the _#@@$#%$$%_ (mailto:#@@$#$$) pump. Scott Krueger AKA Grayhawk Lancair N92EX IO320 SB 89/96 Aurora, IL (KARR) A man has got to know his limitations. -------------------------------1164233574 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Further to all this hydraulic pump stuff:

My original pump was circa 1989 and it had the small circular=20 reservoir. The fill/measurement method was thru a dipstick hole i= n=20 the pump body where the dipstick was sealed with an o-ring. The vent=20 recommendation was to back the dipstick off by 1 to 1.5 turns (See the=20 Lancair 235/320/360 POH). If the reservoir was filled to the full=20 mark, enough fluid would be expelled thru the vent to create a mess.&nb= sp;=20 One solution was to create a standpipe vent and the other was to only fill t= he=20 reservoir to the lo mark.

When I installed a newer version of the pump a few years ago, I removed= the=20 larger reservoir and attached the smaller one to the new pump so that I= =20 didn't have to re-plumb the pump connections. I also drilled a wee hol= e at=20 an angle thru the dipstick head so that it could be snugged down and st= ill=20 provide the vent function. I do not overfill the reservoir because it=20= is=20 usually topped up whilst the gear is extended (i.e. the rods are outside the= =20 actuators) - remember that the reservoir will have to hold more fluid when t= he=20 gear is retracted.

Chris,

I don't know the ID/model of my currently installed pump but I wil= l=20 get that info the next time I have to crawl in the back and look at the = ; #@@$#%$$% pump.=20

Scott Krueger=20 AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL (KARR)

A m= an=20 has got to know his limitations.

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