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post #4 of Old 02-20-2020
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Re: Polishing fuel filter change procedure

That looks more like a fuel/water separator with possibly a screen in it to filter out the big stuff. If you have a Racor 500 as your primary, you shouldn't need to bother with the secondary every 3rd or 4th Racor filter change, unless you have water in the Racor bowl.
It appears you have a fuel pump directly before this filter. If you fill the Racor is full and this bowl, you should be able to bleed the system at the injectors, as above. Just lay an oil absorb pad under the injector feed lines and crank the engine until raw fuel without bubbles comes out at the injector feed line/injector connection (nut).
However, also as above, you may not need to bleed the system at all if you fill the fuel filter housings up all the way.

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