Mercury MerCruiser Engines Service Manual Number 24 GM V-8 305 CID 350 CID

SERVICE MANUAL NUMBER 24

CHARGING SYSTEM

SENSING CIRCUIT

Unplug RED/PURPLE lead from voltage regulator.

Connect positive (+) voltmeter lead to red/purple lead and negative (–) voltmeter lead

to ground terminal.

Voltmeter should indicate battery voltage. If battery voltage is not present, check sens-

ing circuit (red/purple lead) for loose or dirty connection or damaged wiring.

72786

Typical

a - Output Wire - ORANGE

b - Excitation Wire - PURPLE

c - Sensing Wire - RED/PURPLE

d - Voltmeter (0-20 Volts)

e - Ground

Component

ROTOR

Test rotor field circuit for opens, shorts or high resistance (Test 1), using an ohmmeter

(set on R x1 scale), as follows:

72831

Testing Rotor Field Circuit

a - Test 1

b - Test 2

a. Connect one ohmmeter lead to each slip ring.

b. Ohmmeter reading should be 4.2 to 5.5 ohms with rotor at room temperature

°F (21-26°C).

70-80

90-861327--1

OCTOBER 1999

Page 4C-11

Product Specification

Categories	Mercury MerCruiser Manuals
Tags	Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID
Model Year	1998, 1999, 2000, 2001
Download File	Please Enter the Security Characters Shown Below. Letters are Case Sensitive. Your download link will appear upon completing this step. - 895 pages
Document File Type	PDF
Copyright	Attribution Non-commercial

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Mercury MerCruiser Engines Service Manual Number 24 GM V-8 305 CID 350 CID SKU UPC Model

Fernando Woll on Dec 09, 2014. Boat Engine

Great performance engine.
Class 1