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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