Valve Clearance - Westinghouse WGen20000 User Manual

• If operating on propane, turn the propane tank valve
to the fully closed position and disconnect the LPG/
propane hose from the generator and propane tank.
• Replace all protective covers on the generator control
panel.
• Wipe the generator with a moist cloth. Clean any debris
from the muffler cooling vents.
• Store the generator in a well-ventilated, dry location
away from sparks, open flames, pilot lights, heat, and
other sources of ignition such as areas with a spark-
producing electric motor or where power tools are
operated.
• DO NOT store the generator, gasoline, or propane tanks
near furnaces, water heaters, or any other appliances
that produce heat or have automatic ignitions.
• With the engine and exhaust system cool and all
surfaces dry, cover the generator to keep out dust. DO
NOT use a plastic sheet as a dust cover. Non-porous
materials trap moisture and promote rust and corrosion.
LONG TERM STORAGE
Even properly stabilized fuel can leave residue and cause
corrosion if left long term. If storing the generator for over
six months, drain the fuel tank.
DRAINING THE FUEL TANK
If storing the generator for longer than six months, drain
the fuel tank to prevent fuel separation, deterioration, and
deposits in the fuel system.
1. Unscrew the fuel tank cap. Remove the fuel screen filter
by slightly compressing it while removing it from the
tank.
2. Using a commercially available gasoline hand pump
(not included), siphon the gasoline from the fuel tank
into an approved gasoline container. DO NOT use an
electric pump.
OR
Disconnect the fuel line from the bottom of the fuel tank
and allow the fuel to drain into an approved gasoline
container. Reinstall the fuel line.
3. Reinstall the fuel screen filter and the fuel tank cap.
4. Start the generator and allow it to run until the generator
engine stops.
5. Push the battery switch to the OFF position.
6. Disconnect the battery.
MAINTENANCE

VALVE CLEARANCE

Checking and adjusting valve clearance must be done
when the engine is cold.
Perform this procedure on both cylinders.
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) by
momentarily pushing the Start button. Looking through
the spark plug hole, the piston should be at the top (both
valves are closed).
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
valve stem to measure valve clearance.
Intake Valve
0.0031 – 0.0047 in
Valve Clearance
(0.08 – 0.12 mm)
Torque
6. If an adjustment is necessary, hold the rocker arm pivot
and loosen the pivot adjusting nut.
7. Turn the rocker arm pivot to obtain the specified
clearance. Hold the rocker arm pivot and re-tighten the
pivot adjusting nut to the specified torque.
Torque: 106 inch-pound (12 N•m)
8. Perform this procedure for the other valve.
9. Install the gasket, rocker arm cover, and spark plug.
Westinghouse Outdoor Power Equipment, LLC | 23
NOTICE
Exhaust Valve
0.0051 – 0.0067 in
(0.13 – 0.17 mm)
8-12 N•m 8-12 N•m