Section 5 - Maintenance
90-8M0053363
eng
NOVEMBER 2010
Page 83
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There are special tools and equipment that are required to perform some repairs. Do not attempt these repairs unless you
have these special tools and/or equipment. You can cause damage to the product in excess of the cost a dealer would charge
you.
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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.
Maintenance Schedule—Sterndrive Models
Routine Maintenance
NOTE: Only perform maintenance that applies to your particular power package.
Task Interval
Maintenance to Be Performed
Each day start
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Check the engine oil level. (You can extend this interval based on experience with the product.)
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Check the sterndrive gear lube level.
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Check the trim pump oil level.
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Check the power‑assisted steering pump or the compact hydraulic steering fluid level,
depending on the steering system of your model.
Each day end
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If operating in saltwater, brackish water, or polluted water, flush the seawater section of the
cooling system after each use.
Weekly
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Check the water inlets for debris or marine growth.
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Check and clean the seawater strainer, if equipped.
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Check the coolant level.
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Inspect the sterndrive anodes and replace if 50% eroded.
Every two months or 50
hours
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Lubricate the propeller shaft and retorque the nut. (If operating only in freshwater, you can
extend the interval to every four months.)
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If operating in saltwater, brackish water, or polluted water, apply Corrosion Guard to the power
package.
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Check the battery connections and the fluid level.
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Ensure that the gauges and the wiring connections are secure. Clean the gauges. (If operating
in saltwater, reduce this interval to every 25 hours or 30 days, whichever occurs first.)
Scheduled Maintenance
NOTE: Only perform maintenance which applies to your particular power package.
Task Interval
Maintenance to Be Performed
After the initial 20‑hour
break‑in period
Change the engine oil and filter.
