Mercury 20 EFI FourStroke Service Manual

Oil Flow Diagram
a - Sump
b - Screen
c - Hose
d - Pump
e - Camshaft journal
f - Regulator valve
g - Filter
h - Main gallery
i - Oil pressure switch
j - Camshaft faces
k - Rocker arm shaft and valve
l - Crankshaft main bearing
m - Crankshaft rod journal
n - Cylinder wall
o - Piston
p - Piston pin
a
b
c
d
f
e
e
g
h
i
j
o
o
k
l
l
m
m
n
n
p
p
1
2
1
1
1
2
2
2
1
1
2
2
64333
Oil Pump
Page 4C-6 © 2018 Mercury Marine 90-8M0125265 eng NOVEMBER 2017

Mercury 20 EFI FourStroke Specifications

General

Brand	Mercury
Model	20 EFI FourStroke
Category	Engine
Language	English