Mercury 40 Service Manual

CYLINDER BLOCK/CRANKCASE
Page 4B-1590-828631R3 MARCH 1999
Cylinder Block Disassembly
1. Hold crankshaft from turning using Powerhead Stand (91-827001A1). Remove nut
using 1-5/8 in. Socket Tool (91-809646A1).
2. Remove the drive gear components.
CRANKSHAFT WITH NUT
53742
a
b
c
d
e
b
a-Drive Gear Nut
b-Washer (2)
c-Drive Gear
d-Key
e-1-5/8 in. Socket Tool (91-809646A1) Use for Removing Drive Gear Nut
CRANKSHAFT WITHOUT NUT
a
c
d
e
f
b
a-Washer, Lower
b-Woodruff Key
c-Drive Gear
d-Washer, Upper
e-Load Ring
f-Spacer

Mercury 40 Specifications

General

Horsepower	40 hp
Starting System	Electric
Steering	Remote
Fuel Induction System	EFI (Electronic Fuel Injection)
Shaft Length	20"
Full Throttle RPM Range	6000