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#147543 - 07/15/09 09:30 AM 1931 carb problems
Jerry31 Offline
Grease Monkey

Registered: 07/15/09
Posts: 3
Loc: Oregon
I have a 1931 Chevrolet with original motor and carb.
When I was driving last night the engine begin to die and the only way I could get it to continue to run is by pulling the choke out and then it would only go a few hundred feet before it would die again.
I checked the bowl for water and it was OK.

Any clues?

Jerry

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#147544 - 07/15/09 09:55 AM Re: 1931 carb problems [Re: Jerry31]
shawng Offline
Oil Can Mechanic

Registered: 02/25/09
Posts: 597
Loc: Ottawa, Canada
Thinking out loud here:

Closing the choke, will enrich the mixture, meaning things became too lean, meaning not enough gas getting to engine. Dirt is my first guess, then cranky fuel pump, plugged filter.

Was the fuel bowl full when you checked for water?

Or did you suddenly develop a leak on the intake manifold that is letting in air where it shouldn't?
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#147546 - 07/15/09 10:36 AM Re: 1931 carb problems [Re: shawng]
Jerry31 Offline
Grease Monkey

Registered: 07/15/09
Posts: 3
Loc: Oregon
fuel bowl was full.

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#147547 - 07/15/09 11:03 AM Re: 1931 carb problems [Re: Jerry31]
Dads 31 Offline
Oil Can Mechanic

Registered: 09/04/06
Posts: 718
Loc: NW Arkansas, USA
I'd first check for crud in the carb
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#147560 - 07/15/09 01:47 PM Re: 1931 carb problems [Re: Dads 31]
Jerry31 Offline
Grease Monkey

Registered: 07/15/09
Posts: 3
Loc: Oregon
Will do.

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#147562 - 07/15/09 02:23 PM Re: 1931 carb problems [Re: Jerry31]
Chipper Offline



Registered: 11/22/01
Posts: 10227
Loc: The Great State of TEXAS
The list of possibilities is long. Most often the problem is with fuel flow. Blockage in pickup tube in tank or line to fuel pump, fuel pump diaphram, valve in fuel pump stuck, stuck carb needle are most likely. Trash in the carb is rare but not unknown. It typically takes a bunch of trash to effect the carb as the metering jets are off the bottom of the bowl. However with giggling during driving things can defy gravity. If you don't find trash in the carb bowl, I would look elsewhere.

It is also not very common for the carb needle to stick when the vehicle is running. The flow of gasoline keeps it lubricated enough.
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#147656 - 07/16/09 10:00 PM Re: 1931 carb problems [Re: Chipper]
Bill Barker Offline
ChatMaster


Registered: 11/20/01
Posts: 3316
Loc: Issaquah, WA
It was unclear to me... did you check the fuel pump glass bowl, or the carburateur brass fuel bowl?
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