Fuel Polishing:
Fuel polishing is the process of removing contamination such as water and particles from fuel to ensure that it remains in line with fuel specifications. Ideally, fuel should have an ISO particle code of 18/16/13 and a dissolved water content no greater than 200 parts per million. There should be no free or emulsified water present.
Fuel polishing will ensure that the fuel is 'clean and dry' meaning free from water and dirt thereby reducing the possibility of engine or fuel system damageDiesel fuel can become contaminated not only in your fuel tank but on its way from the refinery. Impurities, rust, and even tar build up can cause a wide range of issues with marine engine injection systems. Even "pure" diesel fuel in a clean tank can become contaminated as it oxidizes, resulting in paraffin and asphalt.
There are many companies who can pump your fuel out, polish and pump the diesel back into your tank. This can be time consuming and worst of all, expensive
On board fuel polishing systems are one of the easiest ways to save money. Keeping fuel clean will result in better combustion, reduced maintenance costs, and less waste. Together these help us to a greener earth. There are several models of onboard fuel polishing/transfer systems to choose from.
Now we will see the line diagram of a typical fuel polishing system:
Day Tanks:
It is important to remember that the clean and dry fuel in the day tank will be exposed to the same conditions that cause the fuel in the main storage tank to become bad. Given enough time, the fuel in the day tank will get to the same condition as the fuel in the main tank. A filter and a water separator are still required on the outlet of the day tank.
To provide the desired results, this tank must, in fact, be a "Day Tank." That is, the fuel in this tank must remain there for only a short time. All the problems of long-time fuel storage in the main tank will be present in the day tank if fuel remains in it for long periods of time. Once it ceases to be a "Day Tank" it must be treated just like any other tank.
Fuel Filters:
It's important when considering fuel filters that you choose the correct micron rating. The smaller the micron rating, the more filtration you can expect. You will have to frequently check and or replace a low micron filter; however, you will also filter more of the impurities out of your diesel fuel. Or, for a more advanced system, use a two-stage filter system, with the first filter being a larger micron rating.
Fuel Pump Selection:
Walbro pump is used,It's a Holley universal EFI in-line electric fuel pump.
Utilizing the System:
How often should you use the fuel polishing system? During the warmer months it's advised to cycle your fuel through the filtration system at least twice a week
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