Generac 005308-0 owner manual Adjusting Valve Clearance, To adjust valve clearance

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Section 3 — Maintenance

Residential Portable Generator System

Figure 21 - Spark Arrestor

When valve clearance is correct, hold the pivot ball stud in place

 

with the allen wrench and tighten the rocker arm jam nut. Tighten

 

the jam nut to 174 in/lbs. torque. After tightening the jam nut,

 

recheck valve clearance to make sure it did not change.

 

Figure 22 - Valve Clearance Adjustment

3.6 ADJUSTING VALVE CLEARANCE

After the first 50 hours of operation, you should adjust the valve clearance in the engine.

Important: If you feel uncomfortable about doing this procedure or you don't have the proper tools, please take your generator in to the nearest service center to have the valve clearance adjusted. This is a very important step to insure longest life for your engine.

To adjust valve clearance:

Make sure the engine is at room temperature (60° - 80° F).

Make sure that the spark plug wire is removed from the spark plug and out of the way.

Remove the four screws attaching the valve cover with a #2 or #3 phillips screwdriver.

Make sure the piston is at Top Dead Center (TDC) of its compression stroke (both valves closed). To get the piston at TDC, remove the intake screen at the front of the engine to gain access to the flywheel nut. Use a large socket and socket wrench to rotate the nut and hence the engine. While watching the piston through the spark plug hole. The piston should move up and down. The piston is at TDC when it is up as high as it can go.

Loosen the rocker jam nut. Use an 10mm allen wrench to turn the pivot ball stud while checking clearance between the rocker arm and the valve stem with a feeler gauge. Correct clearance is 0.002-0.004 inch (0.05-0.1 mm).

Install new valve cover gasket.

Re-attach the valve cover.

NOTE: Start all four screws before tightening or you will not be able to get all the screws in place. Make sure the valve cover gasket is in place.

Re-attach the spark plug wire to the spark plug.

Repeat the process for the other cylinder.

NOTE: You must hold the rocker arm jam nut in place as you turn the pivot ball stud.

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Contents Authorized Dealer Support Owner’s ManualTroubleshooting Table of Contents Residential Portable Generator SystemRead this Manual Thoroughly Never operate in an enclosed area or indoors General HazardsExplosion Hazards Electrical HazardsFire Hazards Assembling the Handle Accessory BOXUnpacking Assembling the Wheel KITHandle Assembly Battery ConnectionVolt AC, 20A Duplex Gfci Receptacle Know the GeneratorOperation Residential Portable Generator System This generator1 AC, 20 AMP, Duplex Receptacle Cord Sets and Connection Plugs2 120V AC, 20 AMP, Gfci Receptacle Provided. This receptacle can not recharge 6 Volt batteries 5 12 Volt DC, 10 AMP ReceptacleGrounding the Generator HOW to USE the GeneratorConnecting Electrical Loads DON’T Overload the GeneratorBefore Starting the Generator Wattage Reference GuideAdding Engine OIL Adding Gasoline To Start the EngineLOW OIL Pressure Shutdown System Automatic Idle ControlStopping the Engine To recharge 12 Volt batteries, proceed as follows Charging a BatteryMaintenance Residential Portable Generator System Maintenance ScheduleGeneral Recommendations Generator MaintenanceEngine Maintenance Checking OIL Level To Clean the GeneratorClean Spark Arrestor Screen Service AIR CleanerReplacing the Spark Plug To adjust valve clearance Adjusting Valve ClearanceLong Term Storage GeneralOther Storage Tips Troubleshooting Items YOU Must Purchase Installation for Manual Transfer SwitchKIT Includes Tools RequiredSilicone Caulk These Instructions are to Serve AS a Guide only7a Prepare Box For Connections Your Generac Manual Transfer Switch is now installed Operation of Generator with Manual Transfer Switch Using the Ultra Source PortableTransfer to Generator Power Source When Utility Power Fails Transfer Back to Utility Power SourceInterconnection Drawing Residential Portable Generator System Wiring Diagram, Portable Generator Drawing No G0731 Closest to Bearing Schematic, Portable Generator Drawing No G0733 Wiring Diagram, Manual Transfer Switch Drawing No G1065 Manual Transfer Switch with Load Center Drawing No G0939-B Description Exploded Views and Parts ListsSystem 160QTY Description Lists 118 116 119162QTY Description Part NO# Generator Drawing No D4488-F QTY Description Control Panel Drawing No G0727-B Part NO. QTY Description Tray Rubber Tank Mount MANUFACTURER’S Emission Control System Warranty Coverage Emission Control System Warranty Warranty Schedule