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12-08-2021, 03:30 PM | #1 |
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Join Date: Oct 2017
Location: Venice, FL
Posts: 227
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54 Merc stumbles from a dead stop
I've got a 54 Mercury with original 256 Y block and auto tranny. Car runs great at speed with good acceleration. My problem is when I'm at a complete stop, like at a light, then take off. The car stumbles badly (and sometimes stalls) until I get up to about 10-15 MPH, then it evens out and runs strong. The car is 6V positive ground, has pertronix ignition, and a new vacuum advance diaphragm. Any suggestions? Thanks, John
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12-08-2021, 04:15 PM | #2 |
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Join Date: Feb 2012
Location: Tampa fl
Posts: 133
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Re: 54 Merc stumbles from a dead stop
Check your accelerator pump in the carb , should be a squirt of gas coming out of the nozzle in the Venturi when you press the gas pedal as you take off from a stop.
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12-08-2021, 05:38 PM | #3 |
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Re: 54 Merc stumbles from a dead stop
That's what it sounds like to me too.
Sal |
12-08-2021, 07:49 PM | #4 |
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Re: 54 Merc stumbles from a dead stop
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IN GOD WE TRUST - SEMPER FIDELIS John |
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