Rocker arm cover installation – Generac Power Systems NP-40G User Manual
Page 42
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Section 2.2- VALVE TRAIN
4. When valve clearance is correct, hold the pivot ball
stud with the alien wrench while tightening the rocker
arm |am nut with a crow’s foot. Tighten the Jam nut to the
specified torque. After tightening the Jam nut, recheck
the valve clearance to make sure It did not change.
JAM NUT TIGHTENING TORQUE
GN190: 75 Inch-pounds
GN220: 6.3 foot-pounds
Rocker Arm Cover installation
Place a new rocker arm cover gasket into place. Then,
install the rocker arm cover. Finally, retain the cover with
M6-1.00
X
12mm screws.
Page 2.2-5
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