Vanguard BIG BLOCK M540000, Repair Manual, Page: 76 / 168

Wire Harness - Carbureted and Gaseous
The instructions for the removal of the wiring harness for
carbureted and gaseous engines can be used as a stand-
alone instruction on an assembled engine OR in conjunction
with the disassembly process of an engine.
If you are removing the engine wiring harness as a part of the
disassembly process, reserve the instructions to disconnect
the harness from various components until those components
are to be removed on the engine.
1. Disconnect the engine harness to equipment connector
( A , Figure 86) if not already completed.
2. Disconnect the starter solenoid spade connector ( B ) from
the starter solenoid.
3. Disconnect the anti-afterfire solenoid connector, if
equipped, ( D ) from the solenoid.
4. Remove the fastener that secures the anti-afterfire
ground ring terminal AND harness ground( C and E ) from
the engine and move ground wires aside.
5. Disconnect the ignition armature spade connectors ( G-H )
from the armatures.
NOTE: The wiring for the ignition armatures, oil pressure
switch, and grounds may be secured to the intake manifold
with tie wraps. Cut the tie wrap to release the wiring from the
intake manifold.
NOTE: If removing the engine wire harness on a fully
assembled engine, it is necessary to remove the engine
covers blower housing to access component connectors.
Refer to Engine Covers and Blower Housing in this section for
removal instructions.
6. Disconnect the oil pressure switch spade connector (
F )
from the switch.
7. Remove the engine wire harness from the engine. Make
sure to note wire routing and any additional wire clamps
to ensure proper installation.
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