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(1) 2 »

Fuel Pump Problem?
#1
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Donald Booth
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My 50 Deluxe 8 frequently requires starter fluid to start the engine. I've noticed in this situation that the fuel filter glass bowl is often times less than half full or even empty. Does this indicate that the fuel pump is going bad - that possibly the diaphragm is leaking? The bowl is full when the engine is running.

Posted on: 2020/9/7 12:06
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Re: Fuel Pump Problem?
#2
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Wesley Boyer
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You don't say how long the car sets from the last time you started it. I've had no problems starting my car after setting a week.
Wes

Posted on: 2020/9/7 13:08
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Re: Fuel Pump Problem?
#3
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Ernie Vitucci
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Good afternoon...Here in the Arizona Desert, in the summer, if Miss Prudence sits for a week, she will start on the fourth four second crank every time...occasionally on the third crank. In the winter, when I drive her almost daily...she starts on the first four second crank...Ernie

Posted on: 2020/9/7 13:49
Caretaker of the 1949-288 Deluxe Touring Sedan
'Miss Prudence' and the 1931 Model A Ford Tudor 'Miss Princess'
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Re: Fuel Pump Problem?
#4
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Donald Booth
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The situation generally occurs after the car has been sitting overnight.

Posted on: 2020/9/7 14:39
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Re: Fuel Pump Problem?
#5
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Wesley Boyer
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There are two one way valves in the fuel pump one on the outlet side could be stuck open causing the gas to drain back into the the tank. Not to sure, if you have a spare pump (and if you don't good time and reason to get on) just swap them out and see what happens.
Wes

Posted on: 2020/9/7 19:43
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Re: Fuel Pump Problem?
#6
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Owen_Dyneto
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I'd think it unlikely that fuel could run back from the carburetor bowl thru the pump to the tank, isn't the fuel in the bowl at a lower level than the fuel inlet? I'd consider a non-functioning fuel bowl vent which would allow the fuel in the bowl to percolate out thru the main jets into the manifold and then evaporate.

Posted on: 2020/9/7 19:59
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Re: Fuel Pump Problem?
#7
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Wesley Boyer
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Yes OD but I'm thinking the fuel filter bowl
mounted at the carburetor and it's being sucked from there, never know.
Wes

Posted on: 2020/9/7 20:04
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Re: Fuel Pump Problem?
#8
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Donald Booth
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Thanks for the comments. You've given me a lot to ponder. My biggest takeaway from this is that the glass bowl should remain full under normal circumstances - whether the engine is running or not - unless I run out of gas.

Posted on: 2020/9/8 4:07
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Re: Fuel Pump Problem?
#9
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todd landis
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Had this issue sometime back on one of my cars, could not figure it out. Checked the old rubber gasket on the filter bowl assembly, and noticed it had been squeezed and swollen to covere most of one or both of the holes in the top, so that's an easy check.

Posted on: 2020/9/8 17:33
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Re: Fuel Pump Problem?
#10
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Donald Booth
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I'll check that. Thanks.

Posted on: 2020/9/8 20:33
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(1) 2 »




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