MerCruiser Tow Sports 5.7 MPI, User Manual

Page: 63 / 102

Section 5 - Maintenance
90-865253073 DECEMBER 2007 Page 55
Task Interval Maintenance to Be Performed
Every 300 hours or 3
years
(whichever occurs first)
• Check the engine mounts for tightness and tighten to specifications if
necessary.
• Inspect the condition of the spark plugs, spark plug wires, and the distributor
cap and rotor, if equipped. Replace as necessary. If the condition of these
components is satisfactory at inspection, repeat inspection every 100 hours
or once a year, whichever occurs first.
• Check the electrical system for loose, damaged, or corroded fasteners.
• Check the cooling system and the exhaust system hose clamps for tightness.
Inspect both systems for damage or leaks.
• Disassemble and inspect the seawater pump and replace worn components.
• Inspect the exhaust system components. If the package was equipped with
water shutters (flapper valves), verify that they are not missing or worn.
Maintenance Log
Record all maintenance performed on your power package here. Be sure to save all work
orders and receipts.
Date Maintenance Performed Engine Hours
Engine Oil
Checking
NOTICE
Discharge of oil, coolant, or other engine/drive fluids into the environment is restricted by
law. Use caution not to spill oil, coolant, or other fluids into the environment when using
or servicing your boat. Be aware of the local restrictions governing the disposal or
recycling of waste, and contain and dispose of fluids as required.