Crankcase Components View; Remove Camshaft; Remove Connecting Rods With Pistons And Rings; Connecting Rods Inspection And Service - Kohler ECV940 Service Manual

Crankcase Components
M
O
L
K
J
A Camshaft
C Regulating Pin*
E Cross Shaft*
G Lifter Feed Cover
I Crankshaft
K Connecting Rod
M Piston Pin Retainer
O Piston Ring Set
*Mechanical Governor only.
62 690 05 Rev. --
A
B
D
I
C
N
E
G
F
P
B Locking Tab*
D Governor Gear*
F Lifter Feed Cover
Gasket
H Governor Yoke*
J Connecting Rod
End Cap
L Piston Pin
N Piston
P Oil Seal
Disassembly/Inspection and Service

Remove Camshaft

Remove camshaft and shim (if used).
Inspection
Check lobes of camshaft for wear or damage. Inspect
cam gear for badly worn, chipped, or missing teeth.
Replacement of camshaft will be necessary if any of
these conditions exist.

Remove Connecting Rods with Pistons and Rings

NOTE: If a carbon ridge is present at top of either
cylinder bore, use a ridge reamer tool to remove
ridge before attempting to remove piston.
NOTE: Cylinders are numbered on crankcase. Use
numbers to mark each end cap, connecting rod
and piston for reassembly. Do not mix end caps
and connecting rods.
1. Remove screws securing closest connecting rod end
cap. Remove end cap.
2. Carefully remove connecting rod and piston
assembly from cylinder bore.
3. Repeat above procedures for other connecting rod
and piston assembly.
H
Connecting Rods
Offset, stepped-cap connecting rods are used in these
engines.
Inspection and Service
Check bearing area (big end) for excessive wear, score
marks, running and side clearances. Replace rod and
cap if scored or excessively worn.
Service replacement connecting rods are available in
STD crankpin size and 0.25 mm (0.010 in.) undersize.
Always refer to appropriate parts information to ensure
that correct replacements are used.
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