Generac HomeLink 6500 Series — Valve Clearance Adjustment
Adjustments · Valve train
For the Generac HomeLink 6500 Series, from the Generac owner's manual.
Applies to: Generac HomeLink 6500 Series
Before you start
- Start all six screws before tightening or it will not be possible to get all the screws in place.
Procedure
- Make sure the engine is at room temperature (60° - 80° F / 15.55° - 26.66° C).
- Remove spark plug wire(s) and spark plug(s).
- Remove the six screws attaching the valve cover(s).
- Bring the piston to Top Dead Center (TDC) of its compression stroke (both valves closed).
- Insert a 0.006 in. (0.15 mm) feeler gauge for intake; 0.008 in. (0.20 mm) for exhaust, between rocker arm and valve stem.
- To adjust: hold the rocker arm pivot with a wrench and loosen the pivot lock nut.
- Turn the rocker arm pivot to obtain the specified valve clearance.
- Hold the rocker pivot with a wrench and tighten the lock nut to 69 ft./lbs. (7.8 Nm).
- Install new valve cover gasket.
- Attach the valve cover. Torque fasteners to 20-48 in./lbs. (2.3-5.4 Nm) in a cross pattern.
- Attach the spark plug boot to the spark plug.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Intake 0.006 ± 0.0008 in. (0.15 ± 0.02 mm) cold
- Exhaust 0.008 ± 0.0008 in. (0.20 ± 0.02 mm) cold
- Lock nut torque 69 ft./lbs. (7.8 Nm)
- Valve cover fasteners 20-48 in./lbs. (2.3-5.4 Nm)
Full service-parts list: Generac HomeLink 6500 Series →
Source: Generac owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.