The Ford Barn

mstover · 04-22-2013, 05:57 PM

Need a Model A doctor to diagnose this new problem.

We finally have a nice day here in Ohio and I decided to take my '30 Coupe for a spin. It ran great for the first few miles but then started to sputter. It wasn't a backfire but a sudden loss in power then followed by a burst of power. This happened more and more frequently as we cut our trip short and headed for home. Any ideas as to the cause will be greatly appreciated.

Mike

1931 flamingo · 04-22-2013, 06:05 PM

Fuel flow??
Paul in CT

mstover · 04-22-2013, 06:07 PM

I have a full tank and the sediment bowl and separate fuel filter are clean. I'm wondering if the float valve in the carburator is sticking.
Mike

robw · 04-22-2013, 06:24 PM

start with fuel flow... check the vents in the fuel cap. then check flow at the carb. If all that is good, then check if the float level is right.

If those all check out, then we can move on to the next steps...

Tom Wesenberg · 04-22-2013, 07:29 PM

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What is the seperate fuel filter you mentioned?
Many of the extra filters are meant for fuel pump pressure, and not for gravity feed.

As mentioned, check fuel flow. It should be a strong steam and quickly fill a quart jar.

04-22-2013, 05:57 PM	#1
mstover Member Join Date: Dec 2011 Location: Dayton Posts: 43	Coupe sputters after running for a while Need a Model A doctor to diagnose this new problem. We finally have a nice day here in Ohio and I decided to take my '30 Coupe for a spin. It ran great for the first few miles but then started to sputter. It wasn't a backfire but a sudden loss in power then followed by a burst of power. This happened more and more frequently as we cut our trip short and headed for home. Any ideas as to the cause will be greatly appreciated. Mike __________________ Michael E. Stover, CPA/ABV Living Life in the Slow Lane 2004 Beneteau 331, 1930 Ford Model A 45-B Coupe www.sailtherapy.weebly.com

04-22-2013, 06:05 PM	#2
1931 flamingo Senior Member Join Date: May 2010 Location: new britain,ct 06052 Posts: 9,390	Re: Coupe sputters after running for a while Fuel flow?? Paul in CT

04-22-2013, 06:07 PM	#3
mstover Member Join Date: Dec 2011 Location: Dayton Posts: 43	Re: Coupe sputters after running for a while I have a full tank and the sediment bowl and separate fuel filter are clean. I'm wondering if the float valve in the carburator is sticking. Mike __________________ Michael E. Stover, CPA/ABV Living Life in the Slow Lane 2004 Beneteau 331, 1930 Ford Model A 45-B Coupe www.sailtherapy.weebly.com

04-22-2013, 06:24 PM	#4
robw Senior Member Join Date: Mar 2013 Location: PA Posts: 102	Re: Coupe sputters after running for a while start with fuel flow... check the vents in the fuel cap. then check flow at the carb. If all that is good, then check if the float level is right. If those all check out, then we can move on to the next steps...

04-22-2013, 07:29 PM	#5
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Coupe sputters after running for a while Sponsored Links (Register now to hide all advertisements) What is the seperate fuel filter you mentioned? Many of the extra filters are meant for fuel pump pressure, and not for gravity feed. As mentioned, check fuel flow. It should be a strong steam and quickly fill a quart jar.