Yanmar 4BY - Remove and Install Oil Filter Housing

LUBRICATION
BY Service Manual
8-15
Repair
Figure 8-11
9. Install a new seal (Figure 8-11, (1)) in the oil
filter housing.
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.
Remove and Install Oil Filter Housing
1. Drain engine coolant. See Draining and Filling
Closed Cooling System on page 7-12.
2. Remove oil filter cartridge. See Replace Engine
Oil and Engine Oil Filter Element on page 8-12.
Figure 8-12
3. Remove coolant pipe retaining bolt
(Figure 8-12, (1)).
4. Disconnect coolant pipe (Figure 8-12, (2)) from
thermostat housing.
Figure 8-13
5. Disconnect coolant pipe hose
(Figure 8-13, (1)) from oil cooler
(Figure 8-13, (2)).
0003791
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0003766
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0003790A
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