Mercury 40

4
C
LUBRICATION
90-828631R3 MARCH 1999 Page 4C-1
POWERHEAD
Section 4C - Lubrication
Table of Contents
Specifications 4C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump Removal 4C-2. . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump Disassembly 4C-2. . . . . . . . . . . . . . . . . . . . .
Cleaning and Inspection 4C-3. . . . . . . . . . . . . . . . . . . .
Oil Pump 4C-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump Assembly 4C-4. . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump Installation 4C-5. . . . . . . . . . . . . . . . . . . . . . .
Specifications
LUBRICATION
SYSTEM
Pump Type
Engine Oil Pressure (Warm Engine)
@ 3000 rpm
Engine Oil Pan Capacity
Oil Pump:
Outer Rotor to Housing “a”
Inner Rotor to Outer Rotor “b”
Rotor to Housing “c”
a
b
c
Trochoid
30-40 psi (207-278 kPa)
Either 3 Qts. or 3 Liters
0.001 - 0.006 in. (0.03 - 0.15 mm)
0.005 in. (0.12 mm)
0.001 - 0.003 in. (0.03 - 0.08 mm)