Kohler Command PRO EFI ECH749 [163/180] Reassembly

4. Use a ﬂ ywheel strap wrench or holding tool to hold

ﬂ ywheel. Torque screw securing ﬂ ywheel to

crankshaft to 71.6 N·m (52.8 ft. lb.).

Install Fan

NOTE: Position locating tabs on back of fan in locating

holes of ﬂ ywheel.

1. Install fan onto ﬂ ywheel using screws (engines with

plastic grass screen). Engines with a metal grass

screen will leave fan loosely assembled.

2. Torque screws to 9.9 N·m (88 in. lb.).

Install Hydraulic Lifters

NOTE: Hydraulic lifters should always be installed in

same position as before disassembly. Exhaust

lifters are located on output shaft side of engine

while intake lifters are located on fan side of

engine. Cylinder numbers are embossed on top

of crankcase and each cylinder head.

1. See Servicing Hydraulic Lifters in Disassembly/

Inspection and Service.

2. Apply camshaft lubricant to bottom surface of each

lifter. Lubricate hydraulic lifters and lifter bores in

crankcase with engine oil.

3. Note mark or tag identifying hydraulic lifters as either

intake or exhaust and cylinder 1 or cylinder 2. Install

hydraulic lifters into their appropriate location in

crankcase. Do not use a magnet.

4. If breather reeds and stops were removed from

crankcase, reinstall them at this time and secure

with screw. Torque screw to 4.0 N·m (35 in. lb.).

Cylinder Head Components

A Valve Cover B Valve Cover Gasket C Hex Flange Screw D Rocker Arm Pivot

E Rocker Arm F Push Rod G Hydraulic Lifter H Valve Cap

I Valve Keeper J Valve Spring K Valve Seal L

Valve Spring

Retainer

M Cylinder Head N

Cylinder Head

Gasket

O Valve P Dowel Pin

Reassembly

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