Heavy Equipment Repair Questions? Ask an Expert Now.
Hi my name is***** me see if I can answer this for you.
Putting a magnet inside the fuel tank shouldn't cause any problems, but I'd like to offer a few suggestions.
Water sitting in the tank is what causes rust issues as I'm sure you know. IF you don,t get it out, the tank will continue to rust until you have a fuel leak. Draining the water off the bottom of the tank after every use/day will go a long way toward stopping the rust from getting worse. Also what a lot of people don't realize is that 90% or better of the water that gets into fuel tanks is from condensation. The easiest way to keep condensation from forming in the tank is to always park it with a full tank of fuel. I know that is not always possible, but if you plan on it sitting more then a few days, I highly recommend that you leave the tank full of fuel. Water is the worst enemy of a diesel engine not just to the fuel tank. It can easily damage pumps or injectors. They make a few different additive to add to fuel to help remove water. Caterpillar even has one of there own. It wouldn't hurt to try one of those too.
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Glad I could help. If you have any more questions please let me know and don't forget the answer rating!
Thanks again for letting me help!