Mercury 5 SERIES Service Manual page 109

Table of Contents
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quicksilver Lubricants and Service Aids
Cylinder Block . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intake/Exhaust Valves . . . . . . . . . . . . . . . . . . . . .
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Clearance . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head Removal . . . . . . . . . . . . . . . . . . .
Specifications
Free Length (Intake/Exhaust) "a"
Tilt Limit "b" (Intake/Exhaust)
VALVE SPRING
Compressed Pressure (Installed)
Intake/Exhaust:
Closed Height 0.965 in. (24.4 mm)
Open Height 0.709 in. (17.4 mm)
Direction of Winding (Intake/Exhaust)
Warp Limit *
CYLINDER HEAD
* Lines indicate
straight edge
measurement
90-857138R1 MAY 2000
POWERHEAD
Section 4A - Cylinder Head
4A-1
4A-3
. . . . . . 4A-3
4A-4
4A-6
4A-8
4A-8
4A-11
4/5 (1999)
4/5/6 (2000 & Newer)
b
4/5 (1999 & 2000)
6 (2000)
4/5/6 (2001 & Newer)
4/5 (1999 & 2000)
6 (2000)
4/5/6 (2001 & Newer)
Cylinder Head Disassembly
Cleaning and Inspection . . . . . . . . . . . . . . . . . . .
Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head Resurfacing
Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Springs . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head Reassembly
Cylinder Head Installation
a = 1.260 in. (32.0 mm)
b = 0.044 in. (1.12 mm)
a = 1.378 in. (35.0 mm)
b = 0.044 in. (1.12 mm)
a
17 lbf. (7.7 kgf)
24 lbf. (10.8 kgf)
24 lbf. (10.8 kgf)
31 lbf. (14.0 kgf)
39.4 lbf. (17.9 kgf)
39.4 lbf. (17.9 kgf)
Right Hand
0.0012 in. (0.03 mm)
CYLINDER HEAD
. . . . . . . . . . . . . . . 4A-11
4A-13
4A-13
. . . . . . . . . . . . . 4A-14
4A-18
4A-20
. . . . . . . . . . . . . . . . 4A-21
. . . . . . . . . . . . . . . . . 4A-23
Page 4A-1
4
A