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Mercury 305 CID - Page 710

Mercury 305 CID
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ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY) - 5E-16990-823225--1 1096
INSTALLATION
1. Connect electrical connector to the Knock Sen-
sor (KS) module.
2. Mount KS module to electrical bracket.
72801
b
a
All Engines Except Black Scorpion
a - Electrical Bracket
b - Knock Sensor (KS) Sensor
Engine Coolant Temperature (ECT)
Sensor
NOTICE
Refer to “Service Precautions,” in “Repair
Procedures,” BEFORE proceeding.
REMOVAL
NOTE: Handle the ECT carefully as any damage to
it will affect operation of the system.
1. Disconnect electrical connector at Engine Cool-
ant Temperature (ECT) sensor.
72799
b
a
a - Thermostat Housing
b - Engine Coolant Temperature (ECT) Sensor
2. Remove ECT from thermostat housing.
CLEANING AND INSPECTION
1. Clean with a dry cloth, removing any excess seal-
ant from the base threads.
2. Look for evidence of any physical damage to
base or connector surfaces of the ECT.
INSTALLATION
1. Install ECT in thermostat housing. TIGHTEN
HAND TIGHT PLUS 2-1/2 TURNS MAXIMUM.
2. Connect electrical connector to ECT.

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