Yanmar 6BY2 - Periodic Maintenance Procedures; After Initial 50 Hours of Operation

PERIODIC MAINTENANCE
Periodic Maintenance Procedures
12/05
BY Service Manual
4-9
© 2009 Yanmar Marine International
PERIODIC MAINTENANCE
PROCEDURES
Perform the following maintenance after the initial
50 hours of operation.
• Changing the Engine Oil and Replacing the
Engine Oil Filter
• Checking Shift Cable Adjustment
• Adjusting the Propeller Shaft Alignment (If
Equipped with Marine Gear)
Changing the Engine Oil and Replacing the
Engine Oil Filter
The engine oil on a new engine becomes
contaminated from the initial break-in of internal
parts. It is very important that the initial oil
replacement is performed as scheduled.
It is easiest and most effective to drain the engine
oil after operation while the engine is still warm.
WARNING! Burn Hazard. Avoid contact with hot
engine oil. Wear protective clothing when
handling hot engine oil.
1. Turn engine OFF.
2. Remove engine cover.
3. NOTICE: Prevent dirt and debris from
contaminating engine oil. Carefully clean the
dipstick and the surrounding area before you
remove the cap. Loosen the engine oil filter cap
(Figure 4-1, (2)) 1- 2 turns with a socket
wrench. Allow to sit a few minutes to allow oil to
drain into crankcase.
Figure 4-1
Figure 4-1
4. Remove the engine oil dipstick
(Figure 4-1, (1)). Attach an oil drain pump and
pump out the oil. Dispose of waste properly.
5. Remove the engine oil filter cap and filter
assembly.
6. Remove the filter element from stem.
7. Replace the three O-rings (Figure 4-2, (1)) on
the stem.
Figure 4-2
Figure 4-2
8. Install a new filter element. Ensure the filter fits
snugly in the filter cap.
9. Install the cap and filter assembly. Tighten cap
by hand until the seal touches the housing.
10. Tighten to 25 N·m (225 in.-lb).
After Initial 50 Hours of Operation
0003653
(
1
)
(
2
)
0003652
(1)