Install Rocker Arms - Generac Power Systems GTV99O Service Manual

SECTION 13: ENGINE ASSEMBLY
a. Torque head bolts in sequence shown (Figure 13-12) to
27 Nm (20 ft. lbs.).
3.lnsen push rods into recess in tappets.
ADJUST IGNITION COILAIR 6AP
'LRotate flylvheel until magnet is under coi laminations.
2.Placethickness9au9e,.008"-.012' {0.20-.30 mm) between
magnet and coil laminations, Fig ure l 3- 1 .I .
TORQUE SEOUENCE FOR HEADS:
A.B,C,D.E.F
Figwe 13'12lnsli Cylinder Head
INSTALL ROCKER ARMS
1. Lu bricate rocker arms and ballstuds with clean engine oil.
2, Assemble ball studs, rccker arms, jam nuts and guide
plates to cylinder head, Figu€ 13-l3.
a. Make surc that the push rods are in the proper location
on the tappeti and the rocker arms.
3. Loosen mounting screw so magnet will pull coil down against
thickness gauge.
a. Torque screws to l2-2 Nm (9 ft. lbs.).
4. Rotate fll1,1/heelto
emove thickness gauge.
5,Repeat for second coil.
INSTATI. CYLINDER HEADS
1. Installcylinder head with new gasket, Figure 13-12.
2. Lubricate threads of head bolts with oil.
FOCKER ARM
Figwe 13-10. Torque Flwheel Nut
@".fr
nilil
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/ B
Figute 13-11. Adjust Ak Gap
1 3 - 4
Figute 13-13.,lnstall Rod<et Ant