2N cutting out after a little while

lastcowboy32 · Aug 11, 2015

The last time that I used my old 2N, it would run OK at first, then after ten or fifteen minutes of operation, it would start to act as if it couldn't get fuel. I could sometimes limp it home with the choke.

I took off the sediment bowl and drained the gas tank and left it for a while. We had hay to do.

Now it's a rainy week, and I'm thinking about going back at the old 2N.

Before I put the sediment bowl back on...what should I check and/or clean in the tank and the fuel lines? How would I go about at least ensuring that it's not just an issue of a piece of crap blocking a port or a filter being plugged...?

If that's all good...I think that I've read here something about the keyswitch cutting out on these old 2N's? Can someone bring me up to speed on the cause/cure of that issue?

souNdguy · Aug 11, 2015

pull tank tap., clean all ports, screens in system, blow lines out.

old · Aug 11, 2015

Well since you have the sediment bowl off also pull the elbow in the carb and make sure the screen if there is not clogged up. If it is not there it would be a good idea to get a new elbow with the screen. Also blow out the line and maybe even spray it out with carb cleaner.
As for the ignition switch they are known to be weak but if that is the problem it is easy to jump across the switch terminals to trouble shoot that being the problem

lastcowboy32 · Aug 11, 2015

(quoted from post at 09:26:18 08/11/15) Well since you have the sediment bowl off also pull the elbow in the carb and make sure the screen if there is not clogged up. If it is not there it would be a good idea to get a new elbow with the screen. Also blow out the line and maybe even spray it out with carb cleaner.
As for the ignition switch they are known to be weak but if that is the problem it is easy to jump across the switch terminals to trouble shoot that being the problem

Thanks. That's much of what I was looking for, as in, where are the screens/filters.

old · Aug 11, 2015

If all is as it was from the factory you should have a screen on the top area of the sediment bowl and sticks in the tank. Then a screen in the top of the bowl it self held up by the gasket and bowl and then one in the elbow

lastcowboy32 · Aug 11, 2015

I didn't see the top two that you mentioned. Now I wonder if all of the crud over the years has been taken up by the screen in the elbow.

I guess I'll find out.

old · Aug 11, 2015

Most any farm and home place will have the sediment bowl screen. It is a fine screen that is round and fits up in the gasket area and goes in before the gasket. That one is probably the most important one to have. I keep a couple on hand just because so often they are missing

Juice1952 · Aug 11, 2015

I had same problem. Turned out it was caused by a single asian beetle that had found it's way into the fuel tank and lodged in top end of sediment bowl assembly partialy obstructing fuel flow . The beetle was able to get that far because a previous owner had removed both screens from that assembly. I am replacing it with a complete new assembly as they are not that expensive. Because tractor will run on fuel that has trickled down and filled fuel bowl long enough for tractor to get hot before it quits it is often misdiagnosed as a bad coil or condenser.

lastcowboy32 · Aug 12, 2015

I'm thinking that my problem is probably at the elbow, since my sediment bowl was always full, even when the tractor was cutting out. That's why it always seemed a little like a mystery. I didn't know that there was another screen in the elbow.

Either way, I'm trying to think of a good way of ensuring that the tank is clean, since I now have it empty.

And yes, I think that it would be a good idea to put all of the original screens back.

I read somewhere on here that Ford was a frugal man, and he didn't put a part on a machine that wasn't necessary. I'm sticking to that theory.

lastcowboy32 · Aug 16, 2015

I picked up a new sediment bowl gasket and screen; along with a new elbow at the local dealer.

I took the elbow off...no screen.

So, has gunk been getting deep into the carburetor all of these years? (I bought this recently)

I found a plug on the bottom of the carb and removed it. I'm assuming that's a drain for the float/bowl.

I then sprayed penetrating oil into the elbow's port, only a drip of it came out of the plug. I pulled the needle valve and sprayed penetrating oil into that port. That yielded a good flow out of the bowl plug.

With the needle valve pulled, only a drip comes out, still, if I spray into the elbow's port.

I'm thinking that the screen may be broken off in there. Going to gently go fishing.

Perhaps this machine is in need of a carburetor kit?

lastcowboy32 · Aug 16, 2015

Solved the fuel flow issues. Everything is clean and running straight through to the bowl plug. Put in new gas with some fuel stabilizer. All three screens (tank, sediment bowl, elbow) are in place and clean.

It skips a little now.

I think now it needs tuning.

I also noticed that someone put a fan/generator belt on it that is way, way, way too big. It flops all over the place and even cuts into one of the spark plug wire boots where it connects to the distributor.

I'm thinking that next I'm going to look at the ignition side of things. Points, distributor cap, plug wires, etc and replace the fan/generator belt with one of the right size.

2N cutting out after a little while

lastcowboy32

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