Gearcase Lubrication - Mercury 4 Manual

• Shift Handle Detent - Lubricate detent.
2. Lubricate the following with Light Weight Oil.
• Tilt Pivot.
3. Lubricate the following with Quicksilver or Mercury Precision Lubricants Anti-Corrosion Grease or 2-4-C with
Teflon.
• Propeller Shaft - Refer to Propeller Replacement for removal and installation of the propeller. Coat the
entire propeller shaft with lubricant to prevent the propeller hub from corroding to the shaft.

Gearcase Lubrication

When adding or changing gearcase lubricant, visually check for the presence of water in the lubricant. If water is
present, it may have settled to the bottom and will drain out prior to the lubricant, or it may be mixed with the
lubricant, giving it a milky colored appearance. If water is noticed, have the gearcase checked by your dealer.
Water in the lubricant may result in premature bearing failure or, in freezing temperatures, will turn to ice and
damage the gearcase.
Examine the drained gearcase lubricant for metal particles. A small amount of metal particles indicates normal
gear wear. An excessive amount of metal filings or larger particles (chips) may indicate abnormal gear wear and
should be checked by an authorized dealer.
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