Oil Cooler Removal; Oil Cooler Disassembly And Inspection - Yanmar 6LPA-STP2 Service Manual

LUBRICATION

Oil Cooler Removal

1. Drain the engine coolant (fresh water). See
Draining the Freshwater Cooling System on
page 3-26.
2. Remove the timing belt and No. 2 camshaft
timing pulley. See Timing Belt Removal on
page 5-69.
3. Remove the fuel injection pipe and fuel injection
pump. See Fuel Injection Nozzle Removal on
page 6-14 and Fuel Injection Pump Removal on
page 6-29.
4. Remove the engine oil filter. See Changing the
Engine Oil and Replacing the Engine Oil Filter
Element on page 4-9.
5. Remove the relief valve (Figure 8-23, (2)) and
gasket.
6. Remove the check valve (Figure 8-23, (1)) and
gasket.
Figure 8-23
(2)
Figure 8-23
7. Remove 13 bolts, 2 nuts, oil cooler, cover
assembly and gasket. Discard the gasket.
Figure 8-24
Figure 8-24
8-14
Oil Cooler Disassembly and
Inspection
1. Inspect the relief valve by pressing
(Figure 8-25, (1)) the valve with a wooden stick
to check for sticking. If the valve sticks, replace
the relief valve.
Figure 8-25
2. Inspect the check valve by pressing
(Figure 8-26, (1)) the valve with a wooden stick
to check for sticking. If the valve sticks, replace
the relief valve.
Figure 8-26
(1)
0005375
0005565
© 2007 Yanmar Marine International
Figure 8-25
Figure 8-26
6LPA Service Manual
Oil Cooler
(1)
0005377
(1)
0005378