Mercury 40 Service Manual

CYLINDER HEAD
Page 4A-36 90-828631R3 MARCH 1999
INSTALLING VALVES
1. Always use new valve seals.
2. Apply engine oil to the valves and valve seats.
3. Install valves as shown.
53735
a
b
c
91-809494A1
a-End of the Valve Spring with the Pre-Compressed Coils gets Installed Towards
the Cylinder Head
b-Use Spring Compressor Tool to Compress the Springs for Installation
c-Compress the Spring and Retainer and Install the Valve Keepers Around the
Valve Stem. You May have to Tap Lightly on End of Valve to Seat the Keepers

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