efi fuel filter question

Discussion in 'Technical' started by bomrat, Sep 11, 2014.

  1. bomrat

    bomrat Member

    Joined:
    Jun 17, 2009
    Messages:
    546
    Likes Received:
    30
    Trophy Points:
    93
    Location:
    North Little Rock, AR
    Vehicle:
    74 Comet 4dr 347 4r70w
    hi, i got trash in my injectors again.. the setup i have is:
    the original pickup in tank
    fuel filter
    fuel pump
    fuel filter
    at last injectors

    HAMBURGERS 3341 is the type filter i have, looks like 15 microns on both.
    http://www.summitracing.com/parts/ham-3341

    do i need a smaller micron? or a different filter
    if i remember they are stainless screens in both not the paper element.

    I'm cleaning out my injectors tomorrow evening and try it again
     
  2. Krazy Comet

    Krazy Comet Tom

    Joined:
    Sep 13, 2012
    Messages:
    7,731
    Likes Received:
    2,439
    Trophy Points:
    531
    Garage:
    1
    Location:
    Chesapeake VA
    Vehicle:
    1972 Comet GT clone 306 . 1969 Fairlane Cobra 428CJ 1988 T-Bird awaiting 331 ..
    I dunno what the flow rate or filter ability is for the stock EFI filter but that's what'd be on mine...

    The stock filter worked on my supercharged Marauder that was pushing around 50 PSI into 36Lb injectors...
     
  3. 71Mavrk

    71Mavrk Member

    Joined:
    Jul 27, 2011
    Messages:
    1,224
    Likes Received:
    436
    Trophy Points:
    238
    Garage:
    1
    Location:
    Nevada
    Vehicle:
    1971 Maverick Grabber Clone, 1971 Maverick project
    I would look at the condition of the line between the pump and the injector. Are they rusty originals or deteriorating rubber?

    Also, what is your return line? Is it going back to the tank or are you looping it back into the feed line? What is the condition of this line?

    Micah
     
  4. Bryant

    Bryant forgot more than learned

    Joined:
    Aug 7, 2007
    Messages:
    6,538
    Likes Received:
    153
    Trophy Points:
    203
    Garage:
    1
    Location:
    San Diego
    Vehicle:
    71 Maverick
    ive always used a 100 micron prefilter and a 10 micron post pump filter. what is plugging up the injectors? rust? rust will go through all metal mesh type filters. i use a paper element in the post filter. i have used the aeromotive ones and the mallory ones with great success.
     
  5. bomrat

    bomrat Member

    Joined:
    Jun 17, 2009
    Messages:
    546
    Likes Received:
    30
    Trophy Points:
    93
    Location:
    North Little Rock, AR
    Vehicle:
    74 Comet 4dr 347 4r70w
    i have all new lines from front to back. i installed 1/2 aluminum lines both feed and return.
     

Share This Page