Disassembly and assembly

2. Place a temporary identification mark on the heads
of the valves in order to identify the correct
position. Inlet valves have a recess in the center of
the head.
Note: Do not stamp the heads of the valve. Stamping
or punching the heads of the valves could cause the
valves to fracture.
3. Use a suitable lifting device to position the cylinder
head with the valve springs upward. The weight of
the cylinder head is approximately 56 kg (125 lb).
Note: Ensure that the cylinder head is kept on a
clean, soft surface in order to prevent damage to the
machined face.
Personal injury can result from being struck by
parts propelled by a released spring force.
Make sure to wear all necessary protective
equipment.
Follow the recommended procedure and use all
recommended tooling to release the spring force.
Illustration 142 g03003297
Typical example
Illustration 143 g03003337
Typical example
4. Install Tooling (A) in position on the cylinder head
in order to compress the appropriate valve spring.
NOTICE
Ensure that the valve spring is compressed squarely
or damage to the valve stem may occur.
5. Apply sufficient pressure to Tooling (A) in order to
remove valve keepers (1).
Note: Do not compress the spring so that valve
spring retainer (2) touches valve stem seal (4).
6. Slowly release the pressure on Tooling (A).
7. Remove valve spring retainer (2). Remove valve
spring (3).
8. Repeat Steps 4 to 7 for the remaining valves.
9. Remove Tooling (A).
10. Remove valve stem seals (4) and valve spring
seats (4).
11. Use a suitable lifting device to carefully turn over
the cylinder head.
12. Remove valves (6).
Installation Procedure
Table 23
Required Tools
Tool Part Number
Part Description Qty
(continued)
84 UENR0624-03
Disassembly and Assembly Section
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