Installing The Engine Oil Cooler; Installing The Engine Oil Filters - Yanmar 6LY3 series Service Manual

Assembling the Engine and Components
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Installing the Engine Oil Cooler

1. Apply silicone grease to both of the O-rings
(Figure 5-122, (1)) and install on both ends of
the cooler.
Figure 5-122
(1)
(5)
(4)
Figure 5-122
1 – O-Ring
2 – Cooler Core
3 – Coolant Pump End
4 – Separator Seal
5 – Flywheel End
2. Insert the cooler core (Figure 5-122, (2)) into
the cooler body.
3. Align the marks on the cooler core with the
marks on the body.
Figure 5-123
Figure 5-123
1 – Core Alignment
4. Install the separator seal (Figure 5-122, (4)) to
the flywheel end (Figure 5-122, (5)) of the side
cover.
5. Install the end covers to the oil cooler.
6. Install the oil cooler to the engine.
7. Install the intercooler and the filter bracket to
the engine.
6LY3 Service Manual
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© 2007 Yanmar Marine International
8. Install and tighten the oil tube.

Installing the Engine Oil Filters

1. Apply a light coat of engine oil to the rubber
seal of both filters (Figure 5-124).
Figure 5-124
(1)
Figure 5-124
1 – Full Flow Oil Filter
2 – Oil Filter Bracket
3 – Bypass Oil Filter
2. Turn the full flow oil filter (Figure 5-124, (1)) by
hand until it makes contact with the sealing
surface.
3. Use a filter wrench and turn the full flow oil filter
an additional 3/4 turn.
4. Turn the bypass oil filter (Figure 5-124, (3)) by
hand until it makes contact with the sealing
surface.
5. Use a filter wrench and turn the bypass oil filter
an additional full turn.
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