Mercury 20 EFI FourStroke

Fuel System Components
Ref. No. Qty. Description
Torque
Nm lb‑in. lb‑ft
1 2 Washer
2 2 Screw 6.0 53.1 –
3 1 Vapor separator tank
4 1 Vent hose
5 1 Clamp
6 1 Vent hose
7 1 Vapor recovery tank
8 2 Vent hose
9 2 Fitting
10 2 Rubber mount
11 2 Collar
12 1 Screw 6.0 53.1 –
13 1 Cooling hose
14 1 Water hose
15 1 VST drain hose
16 1 Fuel rail assembly
17 1 Cap
18 1 Valve assembly (not a service item)
19 1 Fuel rail
20 2 Fuel injector assembly
21 2 Seal ring
22 1 Holding plate
23 1 Screw 6.0 53.1 –
24 2 O‑ring
25 1 Fuel inlet tube
26 2 Screw 6.0 53.1 –
27 1 Insulator
28 2 Clamp
29 1 Fuel hose
30 2 Hose clamp
31 1 Fuel hose
32 2 Screw with washer 6.0 53.1 –
33 1 Fuel pump assembly
34 1 O‑ring
35 1 Clamp
36 2 Hose clamp
37 1 Fuel hose
38 1 Fuel filter assembly
39 1 Fuel filter holder
40 1 Bracket
41 1 Screw 6.0 53.1 –
42 2 Hose clamp
43 1 Clamp
44 1 Fuel hose
Service Procedures
90-8M0125265 eng NOVEMBER 2017 © 2018 Mercury Marine Page 3C-5