Mercedes Mullins
John Deere tractors are known for their robust performance and powerful engines. However, even these machines can encounter fuel-related issues, such as those experienced by owners of the John Deere 6310 tractor. In this guide, we will explore the steps necessary to bleed the fuel filter on this tractor model, addressing common problems and providing practical solutions to get your tractor running smoothly again. From troubleshooting fuel filter issues to understanding the intricacies of the fuel system, this article will offer valuable insights for anyone seeking to maintain and optimise the performance of their John Deere 6310 tractor.
| Characteristics | Values |
|---|---|
| Fuel filter replacement | Ensure the seal in the filter housing is changed. |
| Fuel blockage | Check for blockages, especially if a new seal was placed on top of the old one. |
| Dual element filters | Glass bottoms allow for water drainage but are often painted or covered in dirt; newer units use metal bottoms. |
| Self-bleeding system | No need to open high-pressure lines, but positive fuel flow to the injector pump is required. |
| Low fuel flow | Test the low-pressure side first; if no or low flow, the pump may be faulty or there is a blockage. |
| Fuel quality | Poor fuel quality can cause issues; use a fuel additive or treatment to address fungal growth or trash in the tank. |
| Bleeding process | Fill fuel filters, loosen bleed screw, actuate fuel transfer pump, and tighten screw when fuel flows; repeat for injection pump. |
| Air in the system | Ensure no air is sucked in through the bleed valve when filling the filter. |
| Fuel priming | Use diesel mist into the intake to prime the system; non-chlorinated brake parts cleaner can also be used. |
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What You'll Learn
Ensure the fuel filter is not blocked
To ensure that the fuel filter on your John Deere 6310 is not blocked, you should first check the fuel tank for any debris or sediment build-up. A clogged fuel line or debris in the tank could be the cause of a blockage. You can do this by removing the fuel hose from the carburetor and placing it into a suitable container to see if the fuel drains into it. If it does not, there may be a blockage in the fuel line or fuel pump.
If the fuel is draining into the container, the next step is to check the fuel filter itself. Remove the fuel filter from the fuel hose and crank the engine to see if fuel comes out of the end of the hose. If it does not, then the fuel filter may be blocked.
Another way to check for blockages is to use compressed air to blow out any debris in the fuel lines and the gas tank. If there is a blockage, you will notice particles flowing from the gas tank into the fuel filter.
It is also worth checking the gaskets in the filter housing. Sometimes, the old gasket is not removed before a new one is put on, causing the new gasket to go down into the top of the filter and block the fuel flow.
Finally, if your tractor has been running for a long time and then quits, it may be due to the fuel pump getting too hot. In this case, you can try installing an external pump to see if it sucks fuel through the pump in the tank.
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Check the seal in the filter housing
When checking the seal in the filter housing, it is important to ensure that the old gasket has been removed and that there is only one gasket in place. If there are two gaskets, it can block the inlet port of the number two filter and restrict the flow of fuel.
To check the seal, first, remove the old gasket if it is still in the groove. Then, inspect the groove to ensure that there is no residue or debris left behind that could affect the seal. Next, select the correct size gasket from the new gaskets provided and ensure that it fits snugly into the groove. It should not be loose or able to move around, as this could cause fuel leaks.
Additionally, check the "O" ring on the top of the nipple that the bolt screws into and replace it if necessary. The "O" ring plays a crucial role in sealing the connection and preventing fuel leaks.
By following these steps, you can ensure that the seal in the filter housing is intact and functioning properly, preventing fuel leaks and maintaining the efficiency of your John Deere 6310 fuel filter.
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Test the low-pressure side first
When bleeding the fuel system of a John Deere tractor, it is important to test the low-pressure side first. This is because the tractor's fuel system is a self-bleeding system, but it requires positive fuel flow to the injector pump.
To test the low-pressure side, you will need to remove the low-pressure hose and place it in a container. Then, turn on the ignition and observe the fuel flow. If there is no or low flow, it indicates an issue with the pump or a blockage in the system. In such cases, a visual inspection will not be sufficient, and further troubleshooting is necessary.
Before testing the low-pressure side, ensure that the fuel filters are completely full. This is crucial as operating the hand primer with the bleed valve open without sufficient fuel will result in sucking in more air rather than bleeding the system. Once the filters are full, you can proceed with testing the low-pressure side as described above.
It is worth noting that if you are experiencing issues with bleeding the fuel system, it may be necessary to loosen the bleed screw on the injection pump and manually actuate the fuel transfer pump. This can be done by turning the key for an electric motor or cranking the engine for a gear-type pump. After achieving a steady fuel flow, tighten the screw. If the engine still fails to start, you may need to loosen the high-pressure line connections at the injectors and crank the engine until fuel emerges from the fuel lines.
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Manually actuate the fuel transfer pump
To manually actuate the fuel transfer pump, you must first fill up the fuel filters completely. Then, loosen the bleed screw on top of the fuel filter housing. If you have an electric motor, turn the key to manually actuate the fuel transfer pump. If you have a gear-type pump, crank the engine. Next, use the primer lever until you see fuel flowing from the open bleeder screw on top of the filter housing. Finally, tighten the screw.
It is important not to pump the hand primer with the bleed valve open, as this will result in sucking in more air. Instead, once the fuel is in the filter, crack open an injection line on the pump and motor it over until fuel starts coming out. Then, tighten the line and start the tractor.
If you do not have a primer pump, crack the injector lines loose at the injectors and crank at 10-15 second intervals, resting for 10 seconds in between. When you see bubbles stop and just see fuel, tighten the lines, hold the throttle fully open, and start the engine.
If the engine fails to start, loosen the high-pressure line connections at the injectors. Crank the engine until fuel emerges from the fuel lines. Then, re-tighten the lines and crank the engine.
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Use a diesel mist into the intake
Using a diesel mist into the intake is a method for bleeding fuel on a John Deere tractor. This method is effective when the fuel filter has been replaced and the tractor is having trouble starting.
To use this method, you will need to prepare a diesel mist solution. This can be created by mixing diesel fuel with a small amount of air, creating a mist-like consistency. Ensure you are wearing appropriate protective gear, including gloves and eye protection, before beginning this process.
With the engine off, locate the air intake on the tractor. This is usually found near the engine, and it is where air is drawn into the engine during combustion. Remove any filters or coverings over the intake to access the intake valve or pipe.
Once you have located and accessed the air intake, carefully spray or inject the diesel mist solution into it. Ensure that you are doing this slowly and carefully to avoid any spillage or over-saturation. The amount of diesel mist required may vary depending on your tractor's specific needs, but it is generally recommended to start with a smaller amount and increase as needed.
After introducing the diesel mist, attempt to start the engine. The diesel mist should assist in lubricating the system and promoting fuel flow, making it easier for the engine to turn over and start. If the engine starts successfully, you may need to let it run for a few minutes to ensure that the diesel mist is circulated through the system.
This method of using a diesel mist into the intake is a useful technique for bleeding fuel on a John Deere tractor. It can help to clear blockages and promote fuel flow, making it a valuable tool for tractor maintenance and troubleshooting.
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Frequently asked questions
John Deere 6310 tractors are known to have fuel problems. The issue is not the fuel filter but rather the pump. Poor fuel quality is the cause. You need a good fuel additive. Run the engine for several hours with a heavy amount of fuel additive in the fuel tank.
To bleed air from the fuel system, fill up the fuel filters completely, loosen the bleed screw on top of the fuel filter housing, and manually actuate the fuel transfer pump.
Fill the filter but never pump the hand primer with the bleed valve open as it will suck in more air. Once the fuel reaches the filter, crack open one injection line on the pump and motor it over until fuel starts coming out. Then tighten the line and start the tractor.
