Steve, That is exactly where it is I have a little play then hit the plunger. Maybe 1 or 1.5 mm. The plate is level with the wall at the base when fuel pressure is on via bypass.
2005 320 CDI
2006.5 VW Jetta TDI
1991 560SEL (179000 Sold)
1972 280SEL 4.5 ('The Lead Sled' 320000 miles when sold.)
1972 220D (225000 when sold)