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Help out the slant six Rookie
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Author:  skip2ride [ Mon Sep 17, 2007 1:58 pm ]
Post subject:  Help out the slant six Rookie

I was left a 1975 Plymouth Duster Custom from my Grandfather. It ran great until 2006 when he became ill. So far I've replaced the wires, plugs, ignition module, distributor, roter and battery. I can pour gas in the carb and the motor will turn over but to me it seems like the car isn't getting fuel. My next step will be replace the fule pump. Tell me am I missing something?
When the motor burns the gas in the carb and apply the gass it sounds like a sucking noise. I'm certainly no mechanic this is why I'm posting here. Can I get some advice. Are these motors prone to anything in particular after sitting over a year?

Author:  Pierre [ Mon Sep 17, 2007 2:11 pm ]
Post subject: 

Its not the motors themself, but gas that turns into varnish that ruins things. I would get a gas can and run a hose from it to the fuel pump - this will eliminate any old gas issues and dirt in tank etc. As long as the carb isn't buggerd up....

Author:  ValiantOne [ Mon Sep 17, 2007 2:16 pm ]
Post subject: 

Quote:
Its not the motors themself, but gas that turns into varnish that ruins things. I would get a gas can and run a hose from it to the fuel pump - this will eliminate any old gas issues and dirt in tank etc. As long as the carb isn't buggerd up....
I can second that one. When I got my 68 she wouldn't stay running. Dropped the tank and :shock: Fuel pickup was clogged solid and there was a a bunk of brownish black varnish all over the bottom of the tank.

New tank, new pick up, problem totally solved.

BTW, the tank was cake to drop. No big deal at all.

Author:  terrylittlejohn [ Mon Sep 17, 2007 4:09 pm ]
Post subject:  gas

do you mean that the car will run on the primer gas you poor in the carb and then it stalls out?

Author:  skip2ride [ Mon Sep 17, 2007 4:46 pm ]
Post subject: 

Yes I mean that the car will start if I prime the carb but it sounds to me it's just burning up the fule that I prime it with.
I might try the gas can suggestion next.

Author:  terrylittlejohn [ Mon Sep 17, 2007 5:50 pm ]
Post subject:  gas

also make sure the float or needle valve is`nt stuck and not letting gas in the fuel bowl, especially with this car setting for a while, one way to check is to look down in the carb venturi and move the throttle and you should see some pump shot,if not the bowl is dry.

Author:  skip2ride [ Mon Sep 17, 2007 6:41 pm ]
Post subject: 

OK. The car isn't at my house I'm heading to work on it some tomorrow night after work. If the bowl is dry does this mean the needle valve is stuck, meaning I need to tear into the carb next? I hate to do this being a total novice.

Author:  dakight [ Mon Sep 17, 2007 7:33 pm ]
Post subject: 

It means only that fuel is not getting from the tank to the fuel bowl. Any component in that path could be a source of your problem. That includes the fuel pickup "sock" in the tank, the fuel pump, the fuel filter and the needle valve in the carburetor inlet. It's also possible that a rubber line is deteriorated and collaped and even possible for the main fuel line to have been hit by a rock or road debris and pinched shut. Don't zero in on any one item, check them all from the tank to the carb.

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