Lifters; Inspection - Mercury MerCruiser Service Manual

Engine Inspection and Assembly
Cylinder Head Torque Sequence
Long bolts
Short bolts
Description
Cylinder head bolt
All bolts in sequence
In sequence angle
torque

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.
a
b
Page 3B-54
First torque
Second torque
Long bolts
Final torque
Short bolts
c
e
g
d
f
h
© 2016 Mercury Marine
1, 2, 5, 6, 9, 10, 13, 14, and 17
3, 4, 7, 8, 11, 12, 15, and 16
Nm
15
30
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
i
55004
55115
90-8M0099748 eng DECEMBER 2015
lb‑in. lb‑ft
132.7 –
– 22.1
+60°
+45°