Mercury MERCRUISER - Inspection; Lifters

Cylinder Head Torque Sequence
Long bolts 1, 2, 5, 6, 9, 10, 13, 14, and 17
Short bolts 3, 4, 7, 8, 11, 12, 15, and 16
Description Nm lb‑in. lb‑ft
Cylinder head bolt
All bolts in sequence
First torque
15 132.7 –
Second torque
30 – 22.1
In sequence angle
torque
Final torque
Long bolts +60°
Short bolts +45°
Lifters
Inspection
1. Ensure that the lifter seat retainer clip is not broken or damaged.
2. Inspect the pushrod seat. If the seat is scuffed or worn, inspect the pushrod.
3. Inspect the outer lifter body wall. If the wall is scuffed or worn, inspect the engine block lifter bore.
4. Inspect the roller of the valve lifter. If the roller is scuffed or worn, inspect the camshaft lobe.
5. Ensure that the oil hole is unobstructed.
6. Inspect all parts carefully. Replace the valve lifter assemblies that are damaged or excessively worn.
Lifter inspection points
a - Seat retainer clip
b - Pushrod seat
c - Valve lifter body
d - Check ball
e - Check ball spring
f - Check ball retainer
g - Plunger spring
h - Oil hole
i - Roller
55115
55004
a
b
c
d
e
f
g
h
i
Engine Inspection and Assembly
Page 3B-54 © 2016 Mercury Marine 90-8M0099748 eng DECEMBER 2015