Generac Power Systems GTH1000, Руководство по обслуживанию

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5-1
SECTION 5: CYLINDER HEAD AND VALVES
GENERAL INFORMATION
Compression testing information and procedures is described in Sec-
tion 1, under “Troubleshooting”.
Cylinders are numbered as shown in Figure 5-1.
Note: Cylinder #1 is closest to the flywheel.
Figure 5-1.
REMOVE CYLINDER HEADS
Remove exhaust system from engine. Disconnect choke and throttle
control cables. Remove spark plugs.
1. Remove the parts depicted in Figure 5-2.
a. Discard gaskets and valve cover seals.
REMOVE ROCKER ARMS:
1. Unlock jam nuts and remove two ball studs and rocker arm
assemblies (see Figure 5-3).
2. Remove push rods and identify each.
Note: Push rods develop a wear pattern. Mixing them from side to
side can increase this wear, leading to more frequent adjustments
and or loss of performance.
1
2
5
7
6
3
4
1
2
3
4
5
6
7
8
8
VALVE COVER
LOWER WRAPPER
UPPER WRAPPER
BLOWER HOUSING
OIL COOLER
INTAKE MANIFOLD
ASSEMBLY
ROTATING SCREEN
FINGER GUARD
Figure 5-2.
5