Vst Disassembly - Mercury 25 EFI Service Manual

Service Procedures
11. Lift the VST off the lower VST mounting grommet.
b
a
12. Remove the fuel pressure regulator vent hose.
13. Remove the hose clamp securing the fuel return hose to the fuel pressure regulator.
14. Remove the fuel delivery hose from the VST.
a
15. Lift the VST up to remove the VST drain hose from the bottom cowl.

VST Disassembly

1. Remove the washers, grommets, and spacers from the VST assembly.
2. Remove the VST vent hose.
Page 3C-22 © 2016 Mercury Marine
e
a - Hose clamp (remove)
b - VST vent hose
c - High pressure fuel pump wire harness
c
connector
d - Bolts securing VST (2)
e - Air vent assembly
d
10222
a - Fuel pressure regulator vent hose
b - Fuel return hose
b
c - Fuel delivery hose
c
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90-8M0105568 eng MARCH 2016