I have inherited a 10 year old John Deere 5105 with a house in January. I’ve read the manual, done a few maintenance checks, and used it for about 15 hours to clear a rough field. This afternoon I had my first problem.
It had been working for an hour and it had started to rain for a few minutes when the tractor stalled. It was almost on the level at the foot of a hill. It had very little fuel, so I put a few liters of fresh diesel in it, using a can that I had used before.
When I tried to start it, the engine cranked fine, but it took 6 or 7 attempts to start. It then worked fine and accelerated rapidly for about 15 seconds before slowly shutting down again. It didn’t sizzle, but the revs went down and up for 5-10 seconds. For the next 10 to 15 minutes I repeated this several times and managed to cover 15 meters before giving up.
Here’s a hint. I opened the fuel / water drain plug several times during this process and no fuel ever came out.
Does anyone want to hazard a guess? I’m thinking maybe the air in the fuel lines.
Whenever a diesel engine runs on low fuel, there is a risk of air entering the system. You will need to bleed the air from the entire system, starting with the filter. Your manual should have a procedure for bleeding the air, as this is a common problem.
Some diesels can be very difficult to start after air has entered the system. You will learn never to let your diesel run low on fuel …
If your manual doesn’t cover this topic, please let us know and someone here will go over it with you.