X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [199.185.220.224] (HELO priv-edtnes40.telusplanet.net) by logan.com (CommuniGate Pro SMTP 4.3.6) with ESMTP id 618196 for flyrotary@lancaironline.net; Thu, 28 Jul 2005 16:36:48 -0400 Received-SPF: pass receiver=logan.com; client-ip=199.185.220.224; envelope-from=echolakeresort@telus.net Received: from boucher-oddle24 ([207.194.26.160]) by priv-edtnes40.telusplanet.net (InterMail vM.6.01.04.04 201-2131-118-104-20050224) with ESMTP id <20050728203552.TYFV6460.priv-edtnes40.telusplanet.net@boucher-oddle24> for ; Thu, 28 Jul 2005 14:35:52 -0600 MIME-Version: 1.0 Message-Id: <42E941A0.00003A.03408@BOUCHER-ODDLE24> Date: Thu, 28 Jul 2005 13:35:44 -0700 (Pacific Standard Time) Content-Type: Multipart/Alternative; boundary="------------Boundary-00=_KJUCTDQ3LVC000000000" X-Mailer: IncrediMail (4001930) From: "Echo Lake Fishing Resort (Georges Boucher)" References: To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: fuel filter question X-FID: FLAVOR00-NONE-0000-0000-000000000000 X-Priority: 3 --------------Boundary-00=_KJUCTDQ3LVC000000000 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable II have an old Eagle Medallion that my maintenance crew uses around the resort it has the filter before the pump. One thing that I did notice was that filters before the pump have large inlets 13 or 14mm, both the filte= r & the pumps are very close to the tanks (pumps push better than they suck)=0D Georges B.=0D -------Original Message-------=0D =0D From: Mark R Steitle=0D Date: 07/28/05 13:22:57=0D To: Rotary motors in aircraft=0D Subject: [FlyRotary] Re: fuel filter question=0D =0D I guess I=92ll have to take your word on that one George. I haven=92t se= en a Renault in Texas in quite a while. =0D =0D =0D =0D =0D From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Echo Lake Fishing Resort (Georges Boucher)=0D Sent: Thursday, July 28, 2005 3:13 PM=0D To: Rotary motors in aircraft=0D Subject: [FlyRotary] Re: fuel filter question=0D =0D Renault has the filter before the pump.=0D Georges B. =0D =0D -------Original Message-------=0D =0D From: Mark R Steitle=0D Date: 07/28/05 12:59:38=0D To: Rotary motors in aircraft=0D Subject: [FlyRotary] Re: fuel filter question=0D =0D A little more searching and I found a schematic of a Peugeot on the Bosch web site. Both diagrams show the tank, then the pump, then the filter. = Not that some others don=92t do it differently, but I haven=92t seen any. I = think there is a good reason the designers put the filter downstream from the p= ump As Tracy has pointed out before, efi pumps don=92t suck very well, they= are designed to push fuel at high pressure. My system has coarse screen filt= ers in the tank, and two efi filters downstream from the pumps. Caveat=85 I = have done 9 hours of ground testing, but no flight test as yet.=0D Mark S.=0D =0D =0D =0D =0D From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark R Steitle=0D Sent: Thursday, July 28, 2005 2:47 PM=0D To: Rotary motors in aircraft=0D Subject: [FlyRotary] Re: fuel filter question=0D =0D Did a Google search on =93VW Jetta fuel system=94. Here is a cut-n-paste= from the very first hit. =0D 1985 Volkswagen Jetta NHTSA Recall ID Number: 87V053000=0D Recall Date: APR 14, 1987 =0D Component: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP =0D Potential Units Affected: 278520 =0D Summary: FUEL PUMP, LOCATED INSIDE FUEL TANK, COULD SEIZE DURING HIGH AMBIENT TEMPERATURES BECAUSE OF AN EXTREME FINE MESH FUEL FILTER RESTRICT= ING THE FUEL FLOW. =0D Consequence: FUEL SUPPLY TO ENGINE WOULD BE PARTIALLY INTERRUPTED,RESULTI= NG IN STALLING. =0D Remedy: INSTALL A MODIFIED FUEL PUMP AND FILTER. =0D Notes: VOLKSWAGEN OF AMERICA,INC, =0D =0D Mark S. =0D =0D =0D =0D =0D From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of jesse farr=0D Sent: Thursday, July 28, 2005 2:42 PM=0D To: Rotary motors in aircraft=0D Subject: [FlyRotary] Re: fuel filter question=0D =0D Isn't the reason for that most efi cars have pump in tank so would be kin= d of hard to do ?=0D jofarr, soddy tn=0D ----- Original Message ----- From: Mark R Steitle =0D , =0D As I recall, putting the filter between the tank and pump was true for th= e pre EFI cars, which were prone to vapor locking. But I can=92t think of = any of the newer EFI cars that put the filter before the pump (excluding scre= en filters). Can you provide any examples?=0D =0D =0D =0D =0D =0D =20 --------------Boundary-00=_KJUCTDQ3LVC000000000 Content-Type: Text/HTML; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
II have an old Eagle Medallion that my maintenance crew us= es around the resort it has the filter before the pump. One thing th= at I did notice was that filters before the pump have large inlets 13 or = 14mm, both the filter & the pumps are very close to the tanks (pumps = push better than they suck)
 Georges B.
-------Original Message-------
 
Date: 07/28/05 13:= 22:57
Subject: [FlyRotar= y] Re: fuel filter question
 

I guess I=92ll have= to take your word on that one George.  I haven=92t seen a Renault i= n Texas in quite a while. 

 

From: Rotary motors in aircraft [mailto= :flyrotary@lancaironline.net] On Beh= alf Of Echo Lake Fishing Resort (Georges Boucher)
Sent: Thursday, July 28, 2005 3:13= PM
To: Rotary motors = in aircraft
Subject: [= FlyRotary] Re: fuel filter question

 

Renault has the= filter before the pump.

Georges B. = ;

 

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

 

Date: 07/28/05= 12:59:38

Subject: [FlyR= otary] Re: fuel filter question

 

A little more searc= hing and I found a schematic of a Peugeot on the Bosch web site.  Bo= th diagrams show the tank, then the pump, then the filter.  Not that= some others don=92t do it differently, but I haven=92t seen any.  I= think there is a good reason the designers put the filter downstream fro= m the pump.  As Tracy has pointed out before, efi pumps don=92t suck very we= ll, they are designed to push fuel at high pressure.  My system has = coarse screen filters in the tank, and two efi filters downstream from th= e pumps.  Caveat=85 I have done 9 hours of ground testing, but no fl= ight test as yet.

Mark S.<= /SPAN>

 

From: Rotary motors in aircraft [mailto= :flyrotary@lancaironline.net] On Beh= alf Of Mark R Steitle
= Sent: Thursday, July 28, 2005 2:47 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: fuel filter q= uestion

 

Did a Google search= on =93VW Jetta fuel system=94.  Here is a cut-n-paste from the very= first hit. 

1985 Volkswagen Jetta NHTSA Recal= l ID Number: 87V053000

Recall Date: APR 14, 1987
Component: FUEL SYSTEM, GASOLINE:DELIVERY:F= UEL PUMP
Potential Units Affecte= d: 278520
Summary: FUEL PUMP, LOC= ATED INSIDE FUEL TANK, COULD SEIZE DURING HIGH AMBIENT TEMPERATURES BECAU= SE OF AN EXTREME FINE MESH FUEL FILTER RESTRICTING THE FUEL FLOW.
= Consequence: FUEL SUPPLY TO = ENGINE WOULD BE PARTIALLY INTERRUPTED,RESULTING IN STALLING.
Remedy: INSTALL A MODIFIED FUEL PUMP AND FILTER. Notes: VOLKSWAGEN OF AME= RICA,INC,

 

 

Mark S.  =

 

From: Rotary motors in aircraft [mailto= :flyrotary@lancaironline.net] On Beh= alf Of jesse farr
Sent= : Thursday, July 28, 2005 2:42 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: fuel filter quest= ion

 

Isn't the reaso= n for that most efi cars have pump in tank so would be kind of hard to do= ?

jofarr, soddy t= n

----- Original = Message ----- From: Mark R Steitle

,

As I recall, puttin= g the filter between the tank and pump was true for the pre EFI cars, whi= ch were prone to vapor locking.  But I can=92t think of any of the n= ewer EFI cars that put the filter before the pump (excluding screen filte= rs).  Can you provide any examples?

 

 

 

 

 

 
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