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01-03-2022, 01:37 PM | #1 |
Member
Join Date: Jul 2020
Location: Bonney Lake Washington
Posts: 50
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Fuel pump issues
I went to start my 41 Merc to let her run for a bit and exercise the old flathead and it won't start. There's no fuel getting to carb. So, I ordered a rebuild kit for the pump, when I took the fuel pump apart, I didn't see any damages but I rebuilt it anyways. I'm still not getting fuel to the carb. There's only 41,000 miles on the car so I don't think it's the push rod which looked good. I did add a glass bowl fuel filter a few months ago because there wasn't one on the pump.But that was working fine.
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01-03-2022, 01:42 PM | #2 |
Senior Member
Join Date: Mar 2014
Location: Jacksonville FL
Posts: 3,957
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Re: Fuel pump issues
Is it a possibility that you run ethanol fuel and IF so then is the rubber fuel line from the firewall to the fuel pump possibly gummed up and blocked as its not one rated for today's ethanol fuel??? ALSO depending on age those can get cracked so make sure its good and solid and didn't get compromised when you loosened it to remove your fuel pump. Second, are you sure all of the fittings are tight and NOT sucking in air?
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01-03-2022, 01:47 PM | #3 |
Senior Member
Join Date: Oct 2016
Location: harpursville ny
Posts: 1,040
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Re: Fuel pump issues
Check gasket on glass bowl, it may have dried out. If you have a rubber line check that to verify its good and not leaking air or collapsed . Blow air back through fuel line to make sure it’s open. Will it start if you squirt some gas in carb?
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01-03-2022, 01:52 PM | #4 |
Senior Member
Join Date: May 2010
Location: Powell, TN
Posts: 2,509
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Re: Fuel pump issues
if you want to get energetic, remove the pump with the flex line still on it and hold the pump arm against the engine or stand and pump it by pushing on the pump. If it does not pump gas, start with the sediment bowl and go from there for a leak.
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01-03-2022, 03:25 PM | #5 |
Member
Join Date: Jul 2020
Location: Bonney Lake Washington
Posts: 50
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Re: Fuel pump issues
Yes, once I put fuel in the carb, she fires right up. I will check the rubber fuel line.
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01-03-2022, 03:27 PM | #6 | |
Member
Join Date: Jul 2020
Location: Bonney Lake Washington
Posts: 50
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Re: Fuel pump issues
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Quote:
I will tighten everything and double check for leaks |
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01-03-2022, 03:27 PM | #7 |
Senior Member
Join Date: May 2010
Location: Alabama
Posts: 3,260
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Re: Fuel pump issues
Remove the gas cap and blow into the tank to force fuel to the carburetor to prime the pump.
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01-03-2022, 03:28 PM | #8 |
Member
Join Date: Jul 2020
Location: Bonney Lake Washington
Posts: 50
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Re: Fuel pump issues
Thank you, I will check it out.
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