103
Reassembly
62 690 13 Rev. A KohlerEngines.com
Install Oil Filter and Add Oil to Crankcase
NOTE: Make sure both oil drain plugs are installed and
torqued to 21.4 N·m (16 ft. lb.) to prevent oil
leakage.
1. Install oil drain plugs. Torque plugs to 21.4 N·m
(16 ft. lb.).
2. Place new fi lter in shallow pan with open end up. Fill
with new oil until oil reaches bottom of threads. Allow
2 minutes for oil to be absorbed by fi lter material.
3. Apply a thin fi lm of clean oil to rubber gasket on new
fi lter.
4. Refer to instructions on oil fi lter for proper
installation.
5. Fill crankcase with new oil. Level should be at top of
indicator on dipstick.
6. Reinstall oil fi ll cap/plug and dipstick and tighten
securely.
Connect Spark Plug Leads
Connect leads to spark plugs.
Prepare Engine for Operation
NOTE: If ECU, throttle body, TPS or fuel pump module
were replaced, an ECU Reset and TPS Learn is
required. Refer to EFI System Reset and TPS
Learn procedure.
Engine is now completely reassembled. Before starting
or operating engine, be sure to follow steps below.
1. Make sure all hardware is tightened securely.
2. Make sure oil drain plugs, Oil Sentry
™
pressure
switch, and a new oil fi lter are installed.
3. Verify crankcase has been fi lled with correct amount,
weight, and type of oil. Refer to oil recommendations
and procedures in Maintenance, Specifi cations, and
Lubrication System.
4. Turn on fuel supply.
Testing Engine and Setting Speed
B
C
F
A
E
D
A Idle Speed Screw B High Speed Screw
C
Governed Low
Idle Screw
D
Governed Idle
Spring
E Governor Spring F Governor Lever
It is recommended engine be operated on a stand or
bench prior to installation in piece of equipment.
1. Set engine up on a test stand. Install an oil pressure
gauge. Start engine and check to be certain oil
pressure (20 psi or more) is present. Run engine at
idle for 2-3 minutes, then 5-6 minutes more between
idle and midrange.
2. Adjust idle speed screw located on throttle body 100
RPM below specifi ed idle speed setting.
3. Set governed idle speed to specifi ed governor speed
setting.
4. Adjust high speed as necessary. Make sure
maximum engine speed does not exceed 3750 RPM
(no load).
Governor Spring/RPM Range Chart
ECH940/ECH980
Governor Idle Spring (Color) Idle Speed (RPM)
Black 1626-1800 RPM
ECH940
Governor Spring (Color) High Speed (RPM)
Orange 3000-3300 RPM
Brown Patch 3301-3675 RPM
Red 3676-3900 RPM
ECH980
Governor Spring (Color) High Speed (RPM)
Purple 3000-3900 RPM
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