Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks



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#481727 05/15/23 02:15 PM
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broo102 Offline OP
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I "rebuilt" my 32 carter Carb because the car stopped idling one day. Now I cant get the fuel into the carb. The pump seems to be delivering ok, but when I connect it to the carb, no fuel goes into it.
Any suggestions?
Thanks for any help
Bru


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float needle stuck closed ??
first guess if you have fuel going to carb, but not into carb

have you pulled the fuel line at carb and turned over engine to see fuel pumping through the line ? i did this and pumped it into a jar/bowl.


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I also suspect a stuck needle/seat. Try tapping on the gas inlet section of the bowl cover with handle of screwdriver. Might need to do it several times as the polymerized gasoline is plenty sticky and tough.


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Bearsfan
I did the same thing, disconnected the fuel line at the carb, its pumping out when I turn the engine over. Isnt the needle at closed position when theres nothing in the bowl? Can fuel still get into the bowl if the needle is clossed position?

I was thinking of replacing the original carb with a more modern one just so I can drive around without worrying about it.
What is a viable replacement choice (year & model) thats not too expensive?
Thanks
Bru


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Needle should be in the open position with nothing in the float bowl. The W-1 is a good carburetor and better than any more modern one of which I am aware. They are reliable and generally trouble free as long as they don't get crud in them or sit for an extended time so they plug up with bad gas.


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If you are getting fuel to the carb and none in the bowl I would suspect the needle has stuck in the seat or a piece of crud has blocked the passage. If a series of gentle taps at the pipe inlet doesnt help the top needs to come of the carb.
Tony


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broo102 Offline OP
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If there is nothing in the bowel, then isnt the float hanging down which causes the needle to close at the seat?
Thanks


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tonyw #482528 06/07/23 09:25 PM
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I took it off and changed the needle just to compare, I dont think its getting to the carb with ether needle. I always though the needle was in the closed position when the bowel was empty.
Thanks


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My experience with carbs is when there is no fuel in the bowl the float lowers and allows the needle off the seat to allow fuel into the bowl, as the fuel level rises so does the float until the needle closes on the seat stopping fuel flow.
Tony


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tonyw #482553 06/08/23 05:08 PM
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broo102 Offline OP
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Hi Tony
I thought if the float end was lower, the "tongue" end that contacts the needle is higher, pushing the needle into the seat thus closing it. No?
Thanks Bru


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No. As the float rises it pushes the needle closed as mentioned above. With the fuel line removed and no fuel in the bowl can you blow air through the carb from the fuel inlet?

Dave

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Which way the needle valve is moved depends on the fulcrum point of the float. In the case of the W-1, if the float drops, so will the needle valve, allowing fuel to flow into the bowl (if there is fuel to the valve, and the valve is not stuck).

For analogy, think of a child's playground see-saw.

This would be arranged kid - fulcrum - kid. (Your example)

One kid goes up, the other kid goes down.

Now move the second kid to the center, and the fulcrum to the end; thus kid - kid - fulcrum

If the kid on the end goes down, so does the kid in the center, just not as far. This is the arrangement of the W-1. When the float drops, so does the needle valve, just not as far.

Jon.


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