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PostPosted: Sat Apr 28, 2018 2:22 pm 
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3 Deuce Weber
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Joined: Tue Sep 28, 2010 7:55 am
Posts: 88
Location: Powhatan, Virginia
Car Model:
So, I'm working on a 71 Dart, but can't get fuel to the carb.

I replaced the fuel pump and attempted to draw fuel from a portable can. I've also disconnected the line to the carb, but don't see any fuel making it there. The line is clear of clogs.

No fuel when cranking engine.

So, I removed and reinstalled the new fuel pump to verify arm is making contact with Cam and... Still no fuel.

What am I missing? It is a brand new fuel pump from NAPA.

Thanks in advance for your suggestions!

burg


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PostPosted: Sat Apr 28, 2018 3:07 pm 
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Joined: Fri Nov 01, 2002 5:02 pm
Posts: 1824
Location: Waterloo, Iowa
Car Model: '23 T-bucket
Have you confirmed that you have a clear line form the tank to the pump?
Paper fuel filters are known to get blocked by water in the filter. I've seen more than once, water in a paper filter, and it wouldn't flow gas.
I have known of old rubber fuel hose to get blocked by the inner wall peeling loose and stopping fuel flow.
Is your needle/seat stuck in the closed position?

Roger


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PostPosted: Sat Apr 28, 2018 3:22 pm 
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Joined: Thu Oct 17, 2002 7:27 pm
Posts: 14487
Location: Park Forest, Illinoisy
Car Model: 68 Valiant
Is the pump lobe worn flat on the cam?

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PostPosted: Sat Apr 28, 2018 3:36 pm 
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3 Deuce Weber
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Joined: Tue Sep 28, 2010 7:55 am
Posts: 88
Location: Powhatan, Virginia
Car Model:
Well, I may have cried wolf too soon...

It looks like I didn't have enough fuel in the temporary can to develop any head pressure.
With a full can it immediately filled the filter with fuel and started up when connected to carb.

I'm still planning to replace the tank and sending unit, but first I will need to diagnose the blue cloud!

Thanks for the suggestions!

burg


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PostPosted: Sat Apr 28, 2018 5:12 pm 
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Joined: Fri Nov 01, 2002 5:02 pm
Posts: 1824
Location: Waterloo, Iowa
Car Model: '23 T-bucket
You're welcome. "Blue cloud" at startup, then it clears, or is it constant?

Roger


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PostPosted: Sat Apr 28, 2018 6:45 pm 
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3 Deuce Weber
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Joined: Tue Sep 28, 2010 7:55 am
Posts: 88
Location: Powhatan, Virginia
Car Model:
Blue cloud when rpms higher than idle.
I'm hoping it's just valve seats leaking, or it could be sticking rings.

I started with the fuel pump and fresh oil and filter to confirm it would run, but it needs several more tune up items before I test drive it.

burg


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PostPosted: Sun Apr 29, 2018 3:42 am 
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Joined: Fri Nov 01, 2002 5:02 pm
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Location: Waterloo, Iowa
Car Model: '23 T-bucket
You could be correct. If this car sat for a long time, the problems may just go away with a tuneup and a little running time.
You might want to pull the plugs for a look-see. That could give you more information for a diagnosis.

Roger


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PostPosted: Sun Apr 29, 2018 8:11 am 
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Location: Park Forest, Illinoisy
Car Model: 68 Valiant
https://www.youtube.com/watch?v=AynXoLjYrKc

:D :D :D :D :D

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