Section 5 - Maintenance
Page 48
90-8M0053372
eng
NOVEMBER 2010
Task Interval
Maintenance to Be Performed
After the initial 20‑hour
break‑in period
Change the engine oil and filter.
Every 50 hours or 2
months
(whichever occurs first)
All Bravo models except 496 : Lubricate the engine coupler (lubricate the engine coupler every 50
hours if operated at idle for prolonged periods of time).
Every 100 hours or
annually
(whichever occurs first)
•
Touch‑up the paint on the power package.
•
Change the engine oil and filter.
•
Change the sterndrive gear lube.
•
On models with closed cooling, check the coolant level and antifreeze concentration for
adequate freeze protection. Correct if necessary. Refer to the
Specifications
section.
•
Tighten the connection of the gimbal ring to the steering shaft to specifications.
•
Replace the water‑separating fuel filter.
•
Check the steering system and the remote control for loose, missing, or damaged parts.
Lubricate the cables and the linkages.
•
Check the continuity circuit for loose or damaged connections. Test the MerCathode unit
output if equipped.
•
Clean the flame arrestor, IAC muffler, and the crankcase ventilation hoses. Inspect the PCV
valve, if equipped.
NOTE: On MerCruiser V6 models, the PCV valve is a non‑serviceable, internal component of the
valve cover assembly.
•
Inspect the condition and the tension of the belts.
•
Driveshaft extension models: Lubricate the driveshaft U‑joints, and tailstock input and output
bearings.
Every 150 hours or
annually
(whichever occurs first)
All Bravo models except 496: Lubricate the engine coupler.
Every 300 hours or 3
years
•
Check the engine mounts for tightness and torque if necessary.
•
Check the electrical system for loose, damaged, or corroded fasteners.
•
Inspect the condition of the spark plugs, spark plug wires, and the distributor cap and rotor, if
equipped. Replace as necessary.
•
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.
•
On models with closed cooling, clean the seawater section of the closed cooling system.
Clean, inspect, and test the pressure cap.
•
Inspect the exhaust system components. If the package was equipped with water shutters
(flapper valves), verify that they are not missing or worn.
•
Check the engine alignment.
•
Inspect the U‑joints, the splines, the bellows, and check the clamps.
•
Lubricate the U‑joint splines and cross bearing, if equipped with a grease fitting.
•
Inspect the gimbel bearing for roughness. Replace if necessary. See your certified Mercury
MerCruiser dealer.
•
Vazer models, Alpha models, and 496 MAG Bravo models only: Lubricate the engine coupler.
Every 5 years
•
Replace the coolant/anitifreeze. Replace every two years if not using extended‑life coolant/
antifreeze.
Maintenance Log
Record all maintenance performed on your power package here. Be sure to save all work orders and receipts.
Summary of Contents for 3.0 TKS
Page 4: ......
Page 8: ...Page iv 90 8M0053372 eng NOVEMBER 2010 ...
Page 26: ...Section 1 Warranty Notes Page 18 90 8M0053372 eng NOVEMBER 2010 ...
Page 52: ...Section 4 Specifications Notes Page 44 90 8M0053372 eng NOVEMBER 2010 ...
Page 104: ...Section 6 Storage Notes Page 96 90 8M0053372 eng NOVEMBER 2010 ...
