Yanmar 3TNV82A-B Service Manual page 171

2-Valve Cylinder Head
2. Remove the cylinder head bolts
(Figure 6-11, (1)).
3. Lift the cylinder head away from the cylinder
block. Discard the cylinder head gasket
(Figure 6-11, (2)). Position the cylinder head on
the work bench to prevent damage to the
combustion surface.
(2)
Figure 6-11
TNV DI Service Manual
(1)
0001690
Removal of Intake / Exhaust Valves
1. Place the cylinder head on the work bench with
the combustion side down.
2. Remove the valve cap (Figure 6-13, (1)) and
keep with the valve it was installed on.
3. Using the valve spring compressor tool,
compress one of the valve springs
(Figure 6-12).
Figure 6-12
4. Remove the valve keepers (Figure 6-13, (2)).
5. Slowly release the tension on the valve spring.
6. Remove the spring retainer (Figure 6-13, (3))
and valve spring (Figure 6-13, (4)).
Figure 6-13
7. Repeat the procedure with all remaining valves.
ENGINE
0000191
(1)
(2)
(3)
(4)
(5)
(6)
0001684
6-39