1959 D14 Dies

bookie79

New User
My AC D14 cranks up and idles perfectly. It will run just fine for a few minutes but then dies out on me. I can crank it again fine when I choke it, but when I push the choke back in, it sputters a little and then dies.

Any ideas of starting points for me? I kinda thought maybe a fuel filter or pump, but want some guidance before I get started buying a bunch of crap I don't need. I inherited this tractor about a year ago. I've changed battery, hydraulic line, and spark plugs, but kind of a newbie to working on a tractor.
 
I've had that sort of reaction from rust/sediment clogging the tank outlet. Could also be the sediment bowl. Any restriction will cause that behavior. If you drain the tank, remove the sediment bowl, you can check both at one time. Could also be at the carb too or even in the line. Ethanol gas will free up some sediments that normally would have stayed put, these can create a restriction at the carb. More often though it would just be rust.

First thing to do is to see if you have free flow by removing the gas line at the carb and see if it runs freely into a cup. You should have free flow, if it's dribbling, that would indicate a blockage.

In a pinch, I've taken a thin rod like a welding rod (gas welding type rod) and poked around in the tank until I found the outlet, then broke up whatever was causing the blockage if it's there. Of course then you have the mess in the sediment bowl that has to be cleaned out.
 
Fuel filter and pump???? Is it a diesel?? Don't think a D14 gas has a fuel pump or filter unless some one added them and if so you have more problem then what your saying.I would start by doing these things.
#1 make sure you have good blue/white spark at the center wire of the cap and at the 4 plug wires that will jump a 1/4 inch gap or more
#2 pull the carb drain plug and make sure you have a steady flow of gas that will fill a pint jar in less then 3 minutes. And yes catch the gas
#3 when was the last time you serviced the air cleaner and dumped the mud and water out and filled with fresh oil
 
The choke response is the key to the problem. It is not getting the fuel it needs. Follow the fuel, from the tank thru the carb.
 

It's gas. Like I mentioned, I'm new to this, so it shows in my thinking that there was a fuel filter/pump! :) I'm going to inspect my fuel flow and see what's going on. Sounds like it might not be getting enough fuel.
 
Fuel system on most tractor are gravity flow. As for a filter you should have a sediment bowl wit ha screen in the top part of it. It may also have a screen in the carb inlet elbow.
 
I have had it just like you describe from a gas cap that would not vent. Start it and run it without the gas cap on, see if it will run any longer?
 
Take a flash light and look inside gas tank and see if you have some crud floating around in bottom of fuel tank that is plugging tank
outlet.
 
Having to use the choke indicates a "lean" condition.......too little gas or too much air.

A clogged air filter will cause the exact opposite; a rich condition which will usually cause black smoke out the exhaust.

If, after you assure the carburetor is getting plenty of gas, you still have a problem, it is likely dirt in the jets or passages within the carb which will require dismantling and VERY thorough cleaning of every little orifice.

But..... before you tear into the carb, you may want to confirm that you don't have a leak somewhere at the carb/intake or at the intake/head.
Try spraying some carb cleaner or ether at those locations to see if it makes the engine run better.
 
On mine when it does that, the first thing I do is drain the float chamber on the carb. It seems that over time water will get past the sediment bowl and collect in the carb till it gets high enough to cause problems
Pete
 
(quoted from post at 11:19:53 04/20/18) On mine when it does that, the first thing I do is drain the float chamber on the carb. It seems that over time water will get past the sediment bowl and collect in the carb till it gets high enough to cause problems
Pete

I drained the sediment bowl a while back and it had tons of water in it. Also had to drain out the fuel tank because it had lots of water in it. Never really thought about all that water making it to the carb until you mentioned it here. I'll have to give all these things a try. THANKS!!!
 
Pull the carb drain plug and let it drain for an hour or so that way most on the water that may have been in the carb will be drained out and dried out well
 

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