Herb
If my memory servers me right a spring out of a ball point
pen can be substituted for the one that is broken..
If all else fails contact a carb rebuild specality shop that
may have extra parts that will fit..
Bob B
>From: "Brown, Herb" <BRown@ida.org>
>To: <mil-veh@mil-veh.org> (Military Vehicles Mailing List)
>Subject: [MV] Jeep Carburetor
>Date: Thu, 12 Oct 2000 10:08:54 -0400
>
>List,
>
>While rebuilding my 1945 MB carburetor, I found that the "pump Arm spring"
>was broken with at least four-fifths (or more) missing. Also, the
>"metering
>rod" has some very slight bends in the tapered portion. The rebuild kit
>did not include this spring nor the metering rod.
>
>I have 2 questions:
>
>1) The spring in question is intended to put pressure on the accelerator
>pump while providing for the delay as fuel is metered out of the pump
>system's orifice. This assures the air/gas mixture does not become too lean
>as the butterfly opens up. Does anyone know where to get this spring? I
>have called a couple of the usual sources, with no luck so far.
>Alternatively, I have found several sources of small springs, but I don't
>have any idea of the spring constant used for this application. The
>remaining portion of the spring was very stiff and stretched-out. If you
>don't know of a source, can you at least give me an Idea of the stiffness
>of
>this spring?
>
>2) Photos of the metering rod all show the tapered rod end to be straight.
>Is this rod normally straight, and if not does anyone know where I can get
>one? If not, how much risk is there in trying to straighten this using
>several brass shims between the jaws of a vice?
>
>Thanks for any help in advance, Herb
>
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