S&S Cycle Billet Rocker Cover Assemblies for Harley-Davidson evolution engines - Manual (Page 4)

3. Inspect S&S rocker cover assemblies. Remove rough or sharp edges from plain (unchromed) assemblies. Clean all metal parts with solvent. Dry
with compressed air and remove any solvent residue with clean, lint free cloth.
4. Install umbrella valves in rocker cover bases. See Picture 1. Valves go in vent ports nearest intake manifold on both front and rear rocker cover
bases.
NOTE: A thin coat of motor oil or light grease on stem of umbrella valve will ease installation. Valve often makes audible “snap” when correctly seated. Tug
valve gently and visually inspect to confirm proper, secure fit before proceeding.
5. Clean gasket surfaces of rocker cover base and cylinder head with lacquer thinner. Wipe dry with clean, dry cloth. Place right and left lower
rocker cover gaskets on cylinder head with factory-applied silicone bead facing up.
NOTE: A small dab of grease or gasket sealant of choice in corners may be used to hold gaskets in place. Otherwise they should be installed dry.
6. Apply Loctite® 242 or equivalent to threads of 5 each 1⁄4" screws with captured washers 50-0066 and install S&S® rocker housing base on cylinder
head. See Picture 2. Torque screws to 10-13 ft-lbs.
NOTE : If engine is in frame, it is easiest to place screws in housing base before placing housing base on head. Some screws are not accessible with standard
hex key. S&S recommends cutting or grinding short end of key for access. Screws not accessible with torque wrench must be tightened by feel, using tightness
of properly torqued screw as guide. (Last applies only if engine is in frame. All screws are accessible with engine out of frame.) S&S recommends using torque
wrench whenever possible.
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Picture 1
Picture 2