16. Verify the fuel pressure regulator filter is clear of debris.
NOTE: The fuel pressure regulator filter is not a serviceable part, but can be cleared of debris with a mild solvent and
low‑pressure compressed air.
17. Install the O‑rings onto the fuel pressure regulator and lubricate them with 2‑4‑C with PTFE.
a - Spacer
b - Filter
c - O‑rings
Tube Ref No. Description Where Used Part No.
95
2-4-C with PTFE Fuel pressure regulator O-rings 92-802859A 1
18. Install the fuel pressure regulator onto the manifold.
19. Install the spacer and O‑ring onto the fuel pressure regulator.
a - O‑ring
b - Spacer
20. Install the seal grommet halfway onto the manifold.
21. Insert the red wire harness connector onto the fuel lift pump positive terminal.
a - Red wire
b - Seal grommet
22. Install the O‑ring onto the upper housing.
23. Install new O‑rings onto the fuel pump wire harness seal grommet. Verify the blue O‑ring is installed on the upper groove of
the seal grommet. Lubricate the O‑rings with 2‑4‑C with PTFE.
MPI ECT Fuel System
90-8M0099748 eng DECEMBER 2015 © 2016 Mercury Marine Page 5A-19
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