Qjet Fuel Filter Leak

Discussion in 'The Venerable Q-Jet' started by Rivman, Aug 23, 2004.

  1. Rivman

    Rivman Senior Ottawa Buick Guy

    While checking for a small fuel leak where the fuel filter threads into the carburetor body I discovered that the outer portion of the filter housing threads are almost totally gone from the carb body, and I cannot tighten the filter to the carb. This is the long fuel filter housing that has about 5/16 deep threaded portion on one end, and the fuel line fitting screws into the other end. The carb body internal threaded portion is about 5/8" deep. Is there a replacement/repair type filter housing with a longer threaded portion available to use the existing carb, OR do I need to replace the Q-jet carb body and all the hassle that goes with it? Thanks for your help! :TU:
     
  2. nailheadina67

    nailheadina67 Official Nailheader

    NAPA used to make a repair kit for that that used an "O" ring set up. There is also an oversized self threading gizmo that I have never tried, out of fear that metal shavings will find their way into the carb.

    "O" ring type part # is 2-90A, and does not use a filter but has a 3/8" fuel line fitting.

    The 2-76, 2-80, 2-81, and 2-82 are the oversized threading type. I got these numbers from an old catalog. These use filters (except 2-80 & 2-81)

    If you can tell me if you have a short or long fitting, the year, and what size fuel line I can maybe tell you the exact part number. :bglasses:
     
  3. Rivman

    Rivman Senior Ottawa Buick Guy

    Leaking fuel filter

    "Thanks for the info and help Joe"
    Ended up using a '71 Chevy 2bbl Rochester short filter, that has a larger flange and 1/4" longer threaded portion. It bolted right into the 4bbl with no problem, and the 3/8" fuel line fitting mated up nicely with a little reconfiguration. Problem solved with the help of Steve Lacelle, ROA 10270 (newbie) who supplied the fitting, and technical expertise ! :TU:
     
    Last edited: Aug 24, 2004
  4. nailheadina67

    nailheadina67 Official Nailheader

    I'm glad that worked out for you. GM should have made that threaded portion longer in the first place and saved all of us some trouble. :bglasses:
     

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