IGNITION SYSTEM
SERVICE MANUAL NUMBER 24
Spark Plug Wires
IMPORTANT: Proper positioning in spark plug wire supports is important to prevent
cross-firing.
Inspection
1.
2.
Visually inspect spark plug wires and coil wire for damage, such as cracks.
Visually inspect spark plug boots for damage.
NOTE: Use care when removing spark plug wires and boots from spark plugs. Twist the boot
1/2
turn before removing. Firmly grasp and pull on the boot to remove the wire end.
3.
Check spark plug wires and coil wire for continuity using a Multi-Meter, Digital/Volt/Ohm
Meter, or similar. Replace any wires that do not show continuity from end to end.
4.
Replace any damaged wires.
Replacing
IMPORTANT: Proper positioning of each spark plug wire is important to prevent
cross-firing.
IMPORTANT: Use only spark plug wires recommended for Marine application.
NOTE: When replacing spark plug wires, replace one wire at a time to reduce the risk of
error.
1.
2.
Disconnect individual spark plug wires.
Install spark plug wires in proper order. Observe the following:
IMPORTANT: When replacing plug wires, route the wires correctly through the proper
supports. Correct positioning of spark plug wires and supports is important to
prevent cross-firing.
a. Position wires in spark plug wire supports and retainers, as provided.
b. Attach plug wires to appropriate spark plug and terminal on distributor cap. Each end
should fit securely.
3
6
2
8
7
5
3
1
5
7
4
6
4
a
8
2
1
Rotor Rotation On LH Engine
a - Front
IMPORTANT: Mercury Marine Coil Only, before installing coil wire (high tension lead)
to coil, apply approximately 1/2 oz. of Silicone Dielectric Compound (Quicksilver
92-802882A1)
tower hole.
around top of coil high tension lead tower. Do not apply to inside of
c. Apply Silicone Dielectric Compound. Attach coil wire (high tension lead) to center
terminal on distributor cap.
Page 4B-8
90-861327--1 OCTOBER 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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Marine readers have rated Mercury MerCruiser Engines Service Manual Number 24 GM V-8 305 CID 350 CID 4.0 out of 4.0 based on 1 product reviews. Great performance engine.
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