Dodge engine / fuel

[Joris]

Another Dodge engine / fuel problem, seems to be a bit of a hmvf thing but here goes:

 

When I rev my Dodge it starts to sputter and cough, if it's in low revs like doing 30 in 4th it sounds like a charm but if I take it up to 40 and over it sputters and coughs. Same goes for 2nd and 3rd gear of course.

 

Was thinking it's getting too much fuel and "drowns" when I throttle up too much. I've computed my average and it's rather low, 3,2km per litre so it all points to drowning the engine. If so, how to fix it?

[Jessie The Jeep]

Have you checked the Carb for the remains of that Arnhem hedge? :-D

[Tony Pearson]

could also be electrical check plugs and coil could be braking down

[Tony B]

Which type of carb has it got? The classics are vacuum tube for wipers and stuck accelerator pump. the other Dodge place has a lot of helpful info on the problem.

[Joris]

It's got a Zenith carb in it.

[Tony B]

first order check fuel delivery from pump, then see if the float is sticking. If you have a flexible fuel line try replacing it. They can wear and collapse under vacum, or the interior splits and a flap acts like a valve. Does she smell rich when she sputters?

[Joris]

Yeah when you push the throttle to the bottem you smell gasoline.

The fuel lines seem to be fine, replaced them last year and are all metal.

[Tony B]

Try running the engine from a can of fuel directly into the carb via gravity. That will rule out anything before the carb. Also some of the aerosol sprays are very useful giv it hose with that. Sometimes if fuel has been in the tank for a long while and the vehicle not used a varnish can form on the inside of the carb. the spray will take it out. Adding Redex or a fuel additive lead replacer helps the problem as well.