Case 1835B advice

Hi guys. I have a Case 1835b skid loader that starts, but after 5 to 10 seconds shuts down (as if someone turned key off). Trying to restart it, and it won't even fire. After 30 minutes, same result. Starts, runs, dies, dead. It must be electrical/ignition related, cuz she's getting plenty of gas. On the bottom of the carb, is a sensor of some sort, with a single wire leading to the wiring loom. Is this a possible culprit? What could cause it to lose spark then regain it again after sitting a short time? Any help would be GREATLY appreciated. Happy Easter to you all.

Gas cap vent plugged?

nope. Won't even fire with starting fluid. Gotta be electrical...

You'll need to do some diagnostics, catch it in the act.

It does sound electrical, as starting fluid won't start it, unless it's flooding.

Is there possibly a low oil shut down feature? It could be low on oil pressure, oil level, or the sensor is
defective.

Other possibility is an ignition component overheating, but 5 to 10 seconds is awful quick.

Not sure what type ignition system it has. If it's magneto, there will be a kill wire that stops the spark.
Disconnecting the kill wire will bypass all safety switches. That will prove there is a shut down signal,
but you'll have to find the source, especially if it's oil pressure related!

If battery ignition, there will be a 12v supply to the coil. This can be checked with a test light. Loss of
power to the ignition system can also be a safety switch issue.

The connection on the bottom of the carb is a fuel shut off solenoid. It opens when the ignition is turned
on to allow fuel to enter the main jet circuit. It stops fuel from flowing through the carb when the
ignition is turned off. It's purpose is to prevent engine run on when shut off hot, and to prevent exhaust
backfire on hot restart. It can stop the engine from getting fuel, but it cannot stop spark.

The electrical system can be complex on those, and subject to vibration, vermin, general use failure. A
shop manual would be a most helpful investment!

Steve got it right. Follow what he says and you WILL find the trouble. I have been beating the drum for diagnostics for a long time. Much cheaper than just throwing parts at it.

I am pretty ignorant on here but sounds
like a coil to me.

I have a 1835B and have had trouble with condensors.

I had a similar problem it, was a relay in the ignition switch, not sure if this applies to your situation

Seems like everybody has a short answer to a long problem. Diagnosis is the key. Not what aunt Tillie's old Nash needed to fix a problem "something like that" back in '47.

(quoted from post at 20:11:03 03/27/16) Seems like everybody has a short answer to a long problem. Diagnosis is the key. Not what aunt Tillie's old Nash needed to fix a problem "something like that" back in '47.

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hanks to everyone that took the time to share their insight. After digging in, it turned out to be the coil wire. I was in fact getting spark, but after running only a short time,the coil wire apparently gained resistance,. Big thanks to Steve for the info on the fuel shot off solenoid. Now, does anyone know where I left my 5/8" wrench...?