No, the glow plugs are just to help get it started when it's cold. They don't do a thing once its running. Heat and compression are all it takes to keep a diesel running.
exactly. You can start the BX in the summer without glowing plugs after its warmed up fromm use. during the winter, if one glow plugs is bad, and the other two is fine, it will still start- just not a pretty sight till black smoke clears from the unburned pistion until the fast compression ignites that cylinder and the engine will run smooth. I am thinking it might be the feul shutoff- or plugged filter since he said it got it started then died. has the feul been checked yet ? does the fuel filters looked waxy ?
Since the engine was able to turn over and now it won't, is the battery ok ? if you dont have enough power it wont glow plugs and turn over. If the bx never glowed at all and the engine hydrolocked from full of feul, that a bad sign.
Here is my checklist of what I WOULD DO for the OP:
1. connect battery charger to battery
2. check fuel, add 911 if the tractor been exposed to less then 20 degree weather if OP never added diesel treat for winter.
3. check the feul flow from the second filter close to engine, turn key on to see if it coming out from filtered side. if it ok then reconnect. if not trace it back to tank
4. pull the glow plugs wires and check resistance with ohmmeter for all 3
5. pull all glow plugs and crank engine over to make sure no feul is in the cylinders (dont glow plugs!!) reinstall
6. attempt to start engine this time and see if the glow light comes on before starting.