Westinghouse WGen6000, User Manual

Westinghouse Portable Power | 27

6.  If an adjustment is required, hold the adjusting nut and 

loosen the jam nut.

7. 

Turn the adjusting nut to obtain the correct valve lash. 

When the valve lash is correct, hold the adjusting nut 

and tighten the jam nut to 106 in-lb (12 N•m).

8.  Recheck the valve lash after tightening the jam nut.

9. 

Perform this procedure for both the intake and 

exhaust valves.

10. 

Install the rocker arm cover, gasket and spark plug.

TESTING GFCI OUTLETS

1.  Start the generator and allow it to warm up.
2. 

Press the test button on the GFCI outlet.

Test Button

Reset Button

3.  The reset button should pop out and there will be 

no power from the outlets. If the reset button does 

not pop out, the GFCI outlet is not working correctly 

and must be repaired before the generator can be 

operated.

4. 

Press the reset button to restore power to the outlet.

BATTERY SERVICE

WARNING

Do not charge for over 8 hours. Leaving 

the battery on the charger indefinitely could 

overcharge the battery and lead to battery failure.

To ensure the battery remains charged, the generator 

should be started every 2 to 3 months and run for a 

minimum of 15 minutes or a charger should be connected 

to the battery and charged overnight. If using a battery 

charger be sure to follow instructions provided by the 

manufacturer for proper use.

CHECKING AND ADJUSTING VALVE LASH

CAUTION

Checking and adjusting valve lash

must be done when the engine is cold.

1. 

Remove the rocker arm cover and carefully remove 

the gasket. If the gasket is torn or damaged, it must 

be replaced.

2. 

Remove the spark plug so the engine can be rotated 

more easily.

3. 

Rotate the engine to top dead center (TDC) of the 

compression stroke. Looking through the spark plug 

hole, the piston should be at the top.

4.  Both the rocker arms should be loose at TDC on the 

compression stroke. If they are not, rotate the engine 

360°.

5.  Insert a feeler gauge between the rocker arm and the 

push rod and check for clearance (see Figure 24). See 

Table 3 for valve lash specifications.

1

2

3

4

5

Figure 24

(1) Push Rod, (2) Feeler Gauge Area 

(3) Rocker Arm,  (4) Jam Nut, (5) Adjusting Nut

(Table 3) Standard Valve Lash

Intake Valve

Exhaust Valve

Valve Lash

0.0035 ± 0.0043 in

(0.09 ± 0.11 mm)

0.0043 ± 0.0051 in

(0.11 ± 0.13 mm)

Bolt Torque

8-12N.m

8-12N.m

MAINTENANCE