Kohler Confidant ZT740

61
Reassembly
16 690 01 Rev. -- KohlerEngines.com
Crankshaft/Governor Gear/Oil Pump Components
K
J
L
R
P
O
N
G
H
I
D
C
B
A
E
F
M
Q
A
Governor Cross
Shaft
B Crankshaft
C Valve Tappets D Camshaft
E Regulating Pin F Shaft
G Governor Gear H
Locking Tab Thrust
Washer
I Oil Pan J Drain Plug
K Oil Seal L Oil Pump
M Oil Sentry
™
N Ball
O Spring P Oil Pick-up Screen
Q
Ground Strap
Location
R Outer Gerotor Gear
Install Governor Cross Shaft
1. Lubricate governor cross shaft bearing surfaces in
crankcase with engine oil.
2. Slide lower washer onto governor cross shaft and
install cross shaft from inside of crankcase.
3. Install nylon washer onto governor cross shaft, then
start push-on retaining ring. Hold cross shaft up in
position, place a 0.50 mm (0.020 in.) feeler gauge on
top of nylon washer, and push retaining ring down
shaft to secure. Remove feeler gauge, which will
have established proper endplay.
Install Crankshaft
1. Lubricate fl ywheel side main bearing surface and
lips of oil seal in crankcase with clean engine oil.
2. Carefully slide fl ywheel end of crankshaft through
main bearing in crankcase.
Install Connecting Rods with Pistons and Rings
Piston and Connecting Rod Details
A
B
A Side 1 B Side 2
NOTE: Cylinders are numbered on crankcase. Make
sure to install piston, connecting rod, and end
cap into its appropriate cylinder bore as
previously marked during disassembly. Do not
mix end caps and connecting rods.
NOTE: Proper orientation of piston/connecting rod
assemblies inside engine is extremely important.
Improper orientation can cause extensive wear
or damage. Be certain pistons and connecting
rods are assembled exactly as shown.
NOTE: Align chamfer of connecting rod with chamfer of
its mating end cap. When installed, fl at faces of
connecting rods should face each other. Faces
with raised rib should be toward outside.
1. Stagger piston rings in grooves until end gaps are
120° apart. Oil ring rails should also be staggered.
2. Lubricate cylinder bore, piston, and piston rings with
engine oil. Compress rings using a piston ring
compressor.
3. Lubricate crankshaft journals and connecting rod
bearing surfaces with engine oil.