4B - 22 - IGNITION SYSTEM
90-816462 2-695
The timing cannot be set the same way that other igni-
tion systems were.
70106
c
d
f
a
b
e
a - Distributor with Spark Plug Wires
b - Wires (WHITE) Used in Timing Procedure
c - Wire from Shift Interrupt Switch
d - Distributor Harness
e - Engine Harness Wire (PURPLE AND GRAY)
f - Coil
EST uses a magnetic pulse generator and an elec-
tronic module to primary circuit current. Internally the
Pulse Generator, or magnetic pick-up assembly,
takes the place of conventional points. A timer core
on the main shaft of the distributor has external teeth
which align with an equal number of pole piece teeth
(four for a four cylinder engine). The electronic mod-
ule is small enough to allow it to be mounted inside
the distributor, and contains the circuits necessary for
dwell control and advance of the timing.
Molded into the module is a two-prong connector for
the coil terminals and four prong connector. Only
three of the four terminals of the second connector
are used by MerCruiser (one for the shift interrupt and
two white leads are used to “freeze” advance for prop-
erly setting initial timing). Inside the distributor, the
pick-up coil attaches to the module at a molded prong
connector.
70107
b
f
g
h
a
d
c
e
a - Magnetic Pulse Generator
b - Electronic Module
c - Two Prong Connector
d - Four Prong Connector
e - Pick-up Coil Connector
f - Timer Core
g - Pole Piece Teeth
h - External Teeth
Содержание 13
Страница 1: ...13 Printed in U S A 90 816462 2 695 1995 Brunswick Corporation GM 4 Cylinder MARINE ENGINES ...
Страница 2: ...90 816462 2 695 0 ...
Страница 7: ...1 A IMPORTANT INFORMATION GENERAL INFORMATION 72000 ...
Страница 15: ...1 B 50617 IMPORTANT INFORMATION MAINTENANCE ...
Страница 36: ...1 C IMPORTANT INFORMATION TROUBLESHOOTING ...
Страница 74: ...2 A 50633 REMOVAL AND INSTALLATION 4 CYL ALPHA ONE DRIVE ...
Страница 88: ...3 A 26790 ENGINE 181 CID 3 0L 4 CYLINDER GM ENGINE ...
Страница 137: ...4 A 72079 ELECTRICAL SYSTEMS STARTING SYSTEM ...
Страница 170: ...4 B 71855 ELECTRICAL SYSTEMS IGNITION SYSTEM ...
Страница 197: ...ELECTRICAL SYSTEMS CHARGING SYSTEM 4 C 72078 ...
Страница 237: ...4 D 72747 ELECTRICAL SYSTEMS INSTRUMENTATION ...
Страница 250: ...4 E 72938 ELECTRICAL SYSTEMS WIRING DIAGRAMS ...
Страница 264: ...5 A FUEL SYSTEM FUEL PUMP ...
Страница 271: ...5 B 72681 FUEL SYSTEM MERCARB 2 BARREL CARBURETOR ...
Страница 300: ...6 A 50628 COOLING SYSTEM SEAWATER COOLED MODELS ...
Страница 309: ...6 B 73665 COOLING SYSTEM CLOSED COOLING MODELS ...
Страница 325: ...C 6 EXHAUST SYSTEM MANIFOLD ...
Страница 331: ...7 A 71317 POWER STEERING PUMP ...