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Mercury 20 EFI FourStroke

Mercury 20 EFI FourStroke
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Fuel System
Section
3C - Service Procedures
Table of Contents
Fuel System Specifications................................................3C-2
Fuel System Components
................................................. 3C-4
Vapor Separator Tank Components.................................. 3C-6
Air Intake Components...................................................... 3C-8
Fuel Lift Pump..................................................................3C-10
Fuel Lift Pump Removal .......................................... 3C-10
Fuel Lift Pump Installation........................................ 3C-10
Vapor Separator Tank (VST)........................................... 3C-11
VST Removal........................................................... 3C-11
VST Disassembly..................................................... 3C-13
VST Reassembly......................................................3C-14
Fuel Cooler............................................................... 3C-15
VST Installation........................................................ 3C-16
Camshaft Gear Cover/Vent Tank.................................... 3C-17
Removal................................................................... 3C-17
Installation................................................................ 3C-18
Throttle Body .................................................................. 3C-18
Throttle Body Removal............................................. 3C-18
Throttle Body Installation.......................................... 3C-19
Fuel Rail...........................................................................3C-20
Fuel Rail Removal.................................................... 3C-20
Fuel Rail Disassembly.............................................. 3C-21
Fuel Rail Reassembly...............................................3C-21
Fuel Rail Installation................................................. 3C-22
Air Box............................................................................. 3C-23
Air Box Removal.......................................................3C-23
Air Box Installation....................................................3C-23
Idle Air Control (IAC)........................................................3C-24
IAC Removal............................................................ 3C-24
IAC Test....................................................................3C-24
IAC Installation......................................................... 3C-25
Service Procedures
90-8M0125265 eng NOVEMBER 2017 © 2018 Mercury Marine Page 3C-1
3
C

Table of Contents

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