Kohler Command PRO EFI ECH749 [145/180] Disassembly inspection and service

Kohler Command PRO EFI ECH749 [145/180] Disassembly inspection and service
Remove Crankshaft Position Sensor and Bracket
NOTE: Do not remove sensor from bracket unless
sensor is being replaced.
1. Remove screws securing crankshaft position sensor
bracket.
2. Disconnect electrical connector from crankshaft
position sensor.
Remove Manifold Absolute Pressure (MAP) Sensor
or Temperature/Manifold Absolute Pressure (TMAP)
Sensor)
NOTE: Unless sensor is damaged or malfunctioning,
disassembly from intake manifold is
unnecessary.
1. With a screwdriver, slide locking tab on electrical
connector.
2. Detach connector.
3. Remove screw and pull sensor out of intake
manifold.
Remove Fuel Injectors
NOTE: Unless fuel injectors are damaged or
malfunctioning, disassembly from intake
manifold is unnecessary.
NOTE: Make note of position of fuel injector before
removing.
Intake Manifold Components (ETB ECH EFI & ECH EFI)
E
G
D
B
C
D
A
F
B
H
A
MAP or TMAP
Sensor
B Fuel Injector C Fuel Rail D Metal Retaining Clip
E Intake Manifold F
Crankshaft Position
Sensor (Earlier
Design Bracket
G
Crankshaft Position
Sensor (Later
Design Bracket)
H ETB Intake Manifold
1. Disconnect electrical connector.
2. Remove screw and pull injector out of intake
manifold for each injector.
3. When removed, pull metal retaining clip connecting
fuel injector to fuel injector cap. There may be some
fuel left in line. Any spilled fuel must be cleaned up
immediately.
Remove Intake Manifold
1. Remove screw securing a ring terminal which is part
of wiring harness to #1 side crankcase post.
2. On ETB ECH EFI standard charging system
engines, remove purple B+ wire from rectifi er-
regulator connector. Unplug wiring harness from
backing plate. Remove screw securing wiring
harness to #1 side crankcase post.
3. Remove screws securing intake manifold to cylinder
heads. Note which screws hold wiring clamp.
4. If replacing wiring harness, unclasp harness from
clip using a screwdriver.
5. Remove intake manifold and intake manifold
gaskets.
6. Leave wiring harness attached to manifold.
Disassembly/Inspection and Service
14524 690 01 Rev. O KohlerEngines.com

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