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Discussion Topic:
no fuel in sediment bowl
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artron9 |
08-11-2017 @ 3:07 PM
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Member
Posts: 76
Joined: Nov 2016
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Just installed a Dennis carpenter carb in my 52 v8. Pump was working fine before I made the change. Glass bowl is not filling with gas. I cleaned it installed a suggested Napa filter which seemed to fit perfectly. No gas. Should I prime the bowl? Its in a terrible location! What do you think?
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cliftford |
08-11-2017 @ 7:25 PM
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Senior
Posts: 845
Joined: Jan 2014
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Is the bowl gasket sealing? is the pump rod engaged in the pump lever? Has the flexible line been twisted or changed in any way? Since it was working before, these are the most likely problems.
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artron9 |
08-11-2017 @ 7:43 PM
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Member
Posts: 76
Joined: Nov 2016
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Thank you Cliftford! the sediment bowl was the only part I worked on at the pump. It seems to be well sealed. I wonder if the Napa 3039 filter is blocking the passage of fuel to the bowl? Maybe I will remove the connection at the bowl of the short flexible fuel line and look for evidence of gas?
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cliftford |
08-11-2017 @ 9:27 PM
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Senior
Posts: 845
Joined: Jan 2014
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Here's another thought: when you remove the pump, the gas line will drain all the way back to the tank. It may take some time for the new pump suck it back up to the sediment bowl, maybe 20-30 seconds. and you might take the outlet line loose from the pump, hold your thumb over the hole, crank the engine to see if you get any pressure.
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artron9 |
08-12-2017 @ 4:22 AM
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Member
Posts: 76
Joined: Nov 2016
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I never touched the pump.I only removed the bowl and installed the gasket, filter and glass. I noticed also a spring in some of the ads for the bowl kit. Where does that install since I did not realize there should be one? Thanks Cliftford!
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40 Coupe |
08-12-2017 @ 5:25 AM
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Senior
Posts: 1679
Joined: Oct 2009
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When you install the new filter remove the fine screen at the top of the pump just above the old gasket for the glass bowl. Some people install a spring between the bottom of the glass bowl and the paper filter. I am not sure it is necessary because the new filter should fit under the new gasket which will hold the filter in place. With the screen and old gasket removed simply push the filter over the center pipe. It should hang there. Then install the new gasket and the glass bowl and your done. The thumb wheel that tightens the glass bowl should only be tightened by hand. It can be over tightened and distort the die casting.
This message was edited by 40 Coupe on 8-12-17 @ 5:28 AM
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sarahcecelia |
08-12-2017 @ 8:05 AM
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Senior
Posts: 1193
Joined: Mar 2013
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Disconnect the flex hose the connects the pump to the steel line from the tank. Put a piece of clear hose on the steel gas line from the tank. Suck on it and see if you draw any gas. If you do then you know where the problem is; somewhere with the pump; if you don't, the tank line, or tank filter is the problem. The pushrod might not be in the operating arm on the pump properly, flex line is kinked. or whatever. Primeing the fuel bowl is not the answer! If everything is working properly, the pump WILL DRAW THE FUEL!! And when you install the flex line to the pump-ALWAYS install it to the pump first, then to the steel tank line!You can also take the flexline off, crank the motor, and see if you have suction with your finger on the inlet of the pump. any, or all of this will give you the answer.
Regards, Steve Lee
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artron9 |
08-12-2017 @ 10:39 AM
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Member
Posts: 76
Joined: Nov 2016
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Thanks to 40 coupe and Steve Lee. I will be trying your suggestions soon! Ron
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sarahcecelia |
08-12-2017 @ 11:03 AM
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Senior
Posts: 1193
Joined: Mar 2013
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Error-"Operating rod on the pump arm IMPROPERLY" is what I meant. IE, Not seated on the pump arm. I find the easiest way to install the pump is when you have the old one off, turn the motor until the push rod is at it's lowest postion. That makes it easier to get the pump arm on it and seated properly.Then, while you hold it there, put the machine bolts on with a finger as far as you can, (and don't forget to put a very small dab of grease on any fastener before you install it.)That makes the thread in very easily and they don't bind so you get a false reading of when they are tight! When you torque anything, that is a must!!!, or you will get false readings. I lube anything I put together, it not only makes them thread easier, it makes them come apart easier at a later date! Regards, Steve Lee
This message was edited by sarahcecelia on 8-13-17 @ 9:57 AM
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artron9 |
08-12-2017 @ 11:31 AM
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Member
Posts: 76
Joined: Nov 2016
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Great advice! Thanks Steve!
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