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Also, if you partially disassemble an engine or drive assembly and are unable to repair it, the dealer's mechanic must
reassemble the components and test to determine the problem. This will cost you more than taking it to the dealer
immediately upon having a problem. It may be a very simple adjustment to correct the problem.
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Do not telephone the dealer, service office, or the factory to attempt for them to diagnose a problem or to request the repair
procedure. It is difficult for them to diagnose a problem over the telephone.
Your authorized dealer is there to service your power package. They have qualified factory trained mechanics.
It is recommended you have the dealer do periodic maintenance checks on your power package. Have them winterize it in the
fall and service it before the boating season. This will reduce the possibility of any problems occurring during your boating
season when you want trouble free boating pleasure.
Inspection
Inspect your power package often, and at regular intervals, to help maintain its top operating performance and correct potential
problems before they occur. The entire power package should be checked carefully, including all accessible engine parts.
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Check for loose, damaged or missing parts, hoses and clamps; tighten or replace as necessary.
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Check plug leads and electrical leads for damage.
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Remove and inspect the propeller. If badly nicked, bent, or cracked, contact your authorized Mercury MerCruiser dealer.
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Repair nicks and corrosion damage on power package exterior finish. Contact your authorized Mercury MerCruiser dealer.
MerCruiser Gas Inboard Inspection and Maintenance Schedule
Daily Checks
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Check the engine oil level
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Check the transmission fluid level
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Check the lanyard stop switch
After Each Use
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Flush the engine with fresh water, brackish or saltwater use only
Weekly Checks
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Check the seawater inlets for marine growth
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Clean the seawater strainer, if equipped
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Check the coolant level, if equipped
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Check the transmission fluid level
20 Hour Break In
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Change the transmission fluid and filter—ZF requirement to maintain warranty—dealer item
Annually or 100 Hours
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Check the battery condition and connections—dealer item
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Lubricate the propeller shaft splines
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Check the torque of the propeller nut
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Clean the gauges and check wire connection—dealer item
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Touch up any paint nicks and spray the power package with Corrosion Guard
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Change the engine oil and filter
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Change transmission fluid and filter—dealer item
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Check the closed cooling fluid level and concentration for freeze protection, if equipped
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Replace the water‑separating fuel filter
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Check the crankcase vent—8.2L only
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Check the IAC muffler—8.2L only
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Clean the flame arrestor—8.2L only
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6.2L MIE models, inspect the exhaust system. If the power package is equipped with water shutters, verify they are not
missing or worn—dealer item.
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Inspect the condition of the accessory drive belt—dealer item
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Replace the PCV valve
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Spray the power package with Corrosion Guard
90-8M0119292
MAY 2016
eng
Section 4 - Maintenance
Page 33
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