Thread: Where does my second fuel filter go???

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Originally Posted by stovens

So if your running a mechanical pump should the main filter go before the pump too?

While you can (should??) put a non restrictve filter before the mechanical pump, there should always be one between it and the carb.

With an electric pump you are first trying to protect that tight clearanced rotor then secondarily the carb. The mechanical pump valves can tolerate some level of dirt so here your primary objective is to protect the carb (does that make sense)