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What I want to know is, how would sediment/rust/paint flakes make it past the hidden fuel filter??? Doesn't the filter usually clog up when least expected, precisely because it won't pass this junk??
bypass. the filter must be unseating on the t connector. given the fuel filter sits within the connector and the fuel line goes round them both. Any lifting will allow trapped grunge to pass. the fuel line is un-seating the filter with it. If you look at the filter, two sides have flats. These flats don't seal on the fuel line like the t connector does. You get blowby with no leaking due to the hidden filter flats. Either when you reattach the line, or more likely, under operation, this lifting of the filter. The rust that passes is silt, which is no good in any form. Paint flakes again have to slip past the filter.
I know how tight the fit is between the filter and the fuel-line 't' are. Spooning away... just trying to remove the filter after the fuel line is removed from the fuel-line 't' is a pita. Thee fuel line that should be unseating the beast.
So exactly what is under operation? Vibrations. pressure differentials tween bowls and tank. Heat cycles of the rubber fuel line allowing the hose to swell and contract. I dunno know. but i do know that items too large to pass the filter, do get in the bowls.
Sounds a bit like black magic.
I bet those with an in-line fuel filter don't have a problem with bypass.
Blowing gravel off rural roads
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