Gentleman, we deal with planes and water in the tanks is a problem  unlike in automobiles. One boat builder had to pay big repair bills on  many diesel engines because somebody installed the filter after the electric pump. Any water that entered the pump was pulverised and forced  through the fuel filter. That caused rusting inside the injectors, the high pressure pumps etc. I'm using an oversize canister fuel filter (looks like a large oil filter) with drain on the bottom. It is in the lowest point of my system and gravity fed by 3/8" aluminum tubing.
Buly
 

From: "Mark R Steitle" <mark.steitle@austin.utexas.edu>
Date: 2005/07/28 Thu PM 04:14:28 EDT
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: fuel filter question

The previous attachment is drawn showing the pump outside of the tank.
I once owned a '76 Cadillac Seville (please, no comments guys!!!).  It
had Bosch efi system with the pump mounted outside the tank.  But, as I
recall, the filter was still downstream of the pump.  Please forgive me if this sounds argumentative.  That isn't my intent at
all.  Its just that it is very critical that we get this right... the
first time as we may not get a second chance.

Mark S.



________________________________

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Echo Lake Fishing Resort (Georges Boucher)
Sent: Thursday, July 28, 2005 3:01 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: fuel filter question



Not all models had a "intank" fuel pump.

Georges B -------Original Message-------



From: Mark R Steitle <mailto:mark.steitle@austin.utexas.edu> Date: 07/28/05 12:47:46

To: Rotary motors in aircraft <mailto:flyrotary@lancaironline.net> Subject: [FlyRotary] Re: fuel filter question



Did a Google search on "VW Jetta fuel system".  Here is a cut-n-paste
from the very first hit.  1985 Volkswagen Jetta NHTSA Recall ID Number: 87V053000

Recall Date: APR 14, 1987 Component: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP Potential Units Affected: 278520 Summary: FUEL PUMP, LOCATED INSIDE FUEL TANK, COULD SEIZE DURING HIGH
AMBIENT TEMPERATURES BECAUSE 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 AMERICA,INC, Mark S.  ________________________________

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



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

jofarr, soddy tn

----- Original Message ----- From: Mark R Steitle
<mailto:mark.steitle@austin.utexas.edu>  , As I recall, putting the filter between the tank and pump was true for
the pre EFI cars, which were prone to vapor locking.  But I can't think
of any of the newer EFI cars that put the filter before the pump
(excluding screen filters).  Can you provide any examples?













   

 

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