
7. NOTICE: Replace the seawater
pump impeller every 1000 hours
even if no damage is apparent.
When replacement is required, see
your authorized Yanmar marine dealer
or distributor.
Adjusting Intake / Exhaust Valve
Clearance
See your authorized Yanmar marine dealer
or distributor.
Lapping the Intake and Exhaust
Valve
See your authorized Yanmar marine dealer
or distributor.
Every 1250 Hours of Operation
Perform the following maintenance
procedures every 1250 hours of operation
or 5 years, whichever comes first.
• Cleaning the Cooling Water System
• Cleaning and Checking the Seawater
Passage
• Cleaning and Checking the Fresh
Water Cooling Water Passage
• Adjusting the Tension of the
Alternator V-Belt
• Replacing the Timing Belt
• Washing Engine Oil Cooler
Cleaning the Cooling Water System
See your authorized Yanmar marine dealer
or distributor.
Cleaning and Checking the
Seawater Passage
See your authorized Yanmar marine dealer
or distributor.
Cleaning and Checking the Fresh
Water Cooling Water Passage
See your authorized Yanmar marine dealer
or distributor.
Adjusting the Tension of the
Alternator V-Belt
See Checking and Adjusting the Alternator
V-Belt Tension on page 67.
Replacing the Timing Belt
See your authorized Yanmar marine dealer
or distributor.
Washing the Engine Cooler
See your authorized Yanmar marine dealer
or distributor.
PERIODIC MAINTENANCE
6LPA Series Operation Manual 69
© 2007 Yanmar Marine International
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