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As in the diagram on post 33, the main pressure needle valve has a spring. Except mine has a threaded hex head plug in the center of the retaining bolt. I have already posted this. I can remove the needle valve by removing this plug and leaving the retaining bolt in place.
I have a banjo bolt at the top of the FH as shown and labeled in my pics. The plunger can be removed using a magnet. No spring. Apparently it moves with the fuel flow, the pressure pushes it vertically. There is a port in the FH that runs 90 degrees to the rear, in relation to the plunger. Removing the rear banjo connector (that runs to the main input of the WUR), and placing a mirror to view inside the port, I can see the vertical plunger.
Again this FH and the WUR were rebuilt and modified by turbokraft.
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08 Aston Martin Vantage V-8 (6 spd manual) (DD)
20 Cayenne white-black/red (hers)
78 930 (heavily modified)
08 GT3 RS (white/black) (modified of course)
67 911S outlaw (sold)
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