Instrumentation; Requirements And Recommendations; Important Installation Information - Mercury MerCruiser Product Applications Manual

Instrumentation and Controls
Lubricant, Sealant, Adhesives
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Instrumentation

Requirements and Recommendations

IMPORTANT: This section includes information on Quicksilver's standard (non-digital)
instrumentation and mechanical (cable-actuated) remote controls. Refer to the Smart Craft
applications manual for information on Mercury's new digital instrumentation and remote
controls.
Mercury MerCruiser inboard and tow sports engines, designed to comply with the ABYC
Standards, use the four basic gauges shown below:
• Tachometer
• Oil pressure
• Water temperature
• Voltmeter (battery charge indicator)
An extensive array of Quicksilver gauges, instrumentation harnesses, extension
harnesses, and related accessories are available through Mercury Precision Parts to
satisfy your instrumentation needs. We recommend the use of Quicksilver instrumentation
because they are specifically designed for compatibility with our engines, and engineered
to the same high quality and performance standards. Refer to the Mercury Precision
Parts Accessories Guide for a complete list. Wiring diagrams of some of the basic
instrumentation configurations are provided at the end of this section.

Important Installation Information

Instrumentation should be installed in accordance with the instructions that accompany
them.
When designing and installing the instrumentation, you must adhere to the applicable
boating industry standards and regulations (NMMA, ABYC, SAE, USCG, EUs, RCD, ISO,
etc.) for the markets where the boat will be sold.
• Ensure that harnesses are routed to avoid getting pinched or chafed.
• Avoid routing the harness in an area where it could be damaged or short circuited later
in the assembly process, such as when a screw is inserted or a hole is drilled.
IMPORTANT: Harness receptacles can be damaged by overtightening clamps.
• The cannon plug connection on the extension harness (at engine and dash) must be
secured with a hose clamp to avoid a loose connection or water entry.
• Support harness every 46 cm (18 in.) using industry approved fasteners. (ABYC
Standard)
• Coat exposed connections on gauges with liquid neoprene to avoid corrosion.
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Description
Liquid Neoprene
25
2-4-C with Teflon
95
Description
Liquid Neoprene
25
Where Used
Electrical connections
Electrical connections
Cable guides and pivot points
WARNING
!
Where Used
Electrical connections
90-863758060 AUGUST 2006
Part No.
92-25711-3
92-802859A1
Part No.
92-25711-3