Re:Fuel Filter (Spica systems)

[JHertzman@domain.elided]

Jerry writes "I have always been told that the reason the Alfa filter was so 
much more expensive is that it has something in it to remove water from the 
gas to protect the SPICA pump.  Don't have a clue if it is true or not."

Good question. In my experience the main filter, between the supply pump and 
the injection pump, does a good job of separating water from gas, the water 
settling to the bottom and the gas continuing through. If the supply filter, 
between the tank and the supply pump, trapped much water (with no place to 
go) one could wind up with a line full of water, and no gas passing beyond it.

The only lore I could find suggested that the filter had an extremely fine 
filtering element, to protect the supply pump, and had a metal case to 
protect against exhaust heat and road debris in its exposed location. 

John H.
Raleigh, N.C.

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