Club Car Precedent Villager 2 2019 Maintenance And Service Manual page 537

Disassembly/Inspection and Service
Cylinder Head Components
O
A Hex Jam Nut
E Push Rod Guide
I Valve Stem Seal
M Valve
Remove Rocker Arms, Push Rods, and Cylinder Head Assembly
NOTE: Mark location of push rods and any other part removed being reused.
1. Loosen and remove rocker arm pivot adjuster and hex jam nuts. Remove rocker arms and push rods.
2. Remove spark plug.
3. Remove screws securing cylinder head.
4. Remove cylinder head, dowel pins, and cylinder head gasket.
Remove Valves
NOTE: Mark locations of any part removed being reused.
1. Supporting head of valve from below, depress valve spring retainer and valve spring until retainer can be released
from valve stem. Remove valve spring and valve from head. Repeat this procedure for remaining valve.
2. Remove and replace valve stem seals whenever cylinder head is serviced or disassembled.
Inspection and Service
After cleaning, check fl atness of cylinder head and corresponding top surface of crankcase, using a surface plate or
precision straight edge and feeler gauge. Maximum allowable out of fl atness is 0.1 mm (0.0039 in.).
Carefully inspect valve mechanism parts. Inspect valve springs and related hardware for excessive wear or distortion.
Check valves and valve seat area or inserts for evidence of deep pitting, cracks, or distortion.
Check clearance of valve stems in guides. See valve details and specifi cations.
Hard starting, or loss of power accompanied by high fuel consumption may be symptoms of faulty valves. Although
these symptoms could also be attributed to worn rings, remove and check valves fi rst. After removal, clean valve
heads, faces, and stems with a power wire brush.
Then, carefully inspect each valve for defects such as warped head, excessive corrosion, or worn stem end. Replace
valves found to be in bad condition.
62
N
M
Rocker Arm Pivot
B
Adjuster
F Push Rod
J Cylinder Head Screw
Cylinder Head
N
Gasket
KohlerEngines.com
K
J
I
L
F
C Rocker Arm
Valve Spring
G
Retainer
K Spark Plug
O Dowel Pin
H
G
D
C
A
E
B
D Rocker Arm Stud
H Valve Spring
L Cylinder Head
17 690 15 Rev. --