Yanmar BY Series Service Manual page 184

LUBRICATION
3. Remove coolant pipe retaining bolt
(Figure 8-8, (1)).
Figure 8-8
( 2 )
Figure 8-8
4. Disconnect coolant pipe (Figure 8-8, (2)) from
thermostat housing.
5. Disconnect coolant pipe hose (Figure 8-9, (1))
from oil cooler (Figure 8-9, (3)).
Figure 8-9
( 1 )
(2)
Figure 8-9
6. Remove three screws (Figure 8-9, (2)) and
remove oil cooler (Figure 8-9, (3)).
8-10
( 1 )
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( 3 )
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© 2009 Yanmar Marine International
7. Inspect ports for evidence of blockage or
corrosion (Figure 8-10). Clean or replace oil
cooler as necessary.
Figure 8-10
Figure 8-10
8. Thoroughly clean sealing surfaces.
9. Install a new seal (Figure 8-11, (1)) in the oil
filter housing.
Figure 8-11
(1)
Figure 8-11
10. Install oil cooler onto oil filter housing.
11. Install and connect coolant pipe. Secure to
cylinder head with screw.
12. Install new oil filter element and tighten cap to
25 N·m (225 in.-lb).
13. Fill the engine with coolant.
14. Run engine and check for oil or water leaks.
BY Service Manual
Repair
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