Scooter, fuel coming out of the pump shaft means you need a new primer pump because if fuel comes out air can get in, Get a new style black Bosch pump.
Try filling your secondary filter[the large spin on} with fuel before installing it. Less pumping needed to purge and fill.

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1981 240D 143k 4 spd manual -SOLD

2004 VW Jetta TDI 5 speed 300k -still driven daily