I own a new LZ200TXR. I mounted it to an older boat that had been sitting for quite a while with old gas (ethanol based). During initial break-in, the entire fuel system was affected with residue from the tank. Just about every fuel filter has been replaced from the fuel/water separator, the main incoming filter, the electric pump filter, and the medium pressure strainer. There were two very small, very fine filters that were replaced that I cannot find anywhere on any diagram. They were basket shaped, about 3/4" long and about 1/4" in diameter. There were two of them. I thought the dealer told me they were from the high pressure system, but I don't remember where. The only place I could think that they came from is the inlets to the fuel rails, but they don't show on any diagrams I have. Anyone with any ideas?
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Unidentifiable Fuel Filters
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That model only has 3 fuel filters that can be replaced, there are small filters in high pressure fuel pump and fuel injectors but are not replaceable.
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actaually there are about 12 filters under that hood, only 4 can be field serviced.
the injector filters and the HP pump filters are technically non-field servicable.
however they rarely fail.
biggest two that do are the VST and the medium pressure inline.
easy to test.
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