Push Rod Inspection; Cylinder Head Inspection - Yamaha EF2800i Service Manual

CYLINDER HEAD COVER AND CYLINDER HEAD

PUSH ROD INSPECTION

1. Measure:
• Push rod runout
Runout limit:
Out of specification → Replace.
SVU3110

CYLINDER HEAD INSPECTION

1. Inspect:
• Cylinder head combustion chamber
Check the combustion chamber for car-
bon deposits
Carbon deposits → Remove.
NOTE:
Be sure not to damage the contact surface of
the cylinder.
SVU3120
2. Inspect:
• Cylinder head
Cracks/damage around the hole of
spark plug → Replace.
3. Measure:
• Cylinder head warpage
Measure the warpage on the contact
surface of the cylinder head at six
points using the straight edge and thick-
ness gauge.
Warpage limit:
Out of specification → Resurface or
replace.
SVU3130
3-10
ENG
0.5 mm (0.02 in)
0.05 mm (0.002 in)