Service manual

Page 45 of 151

Rocker Arm

• Check the rocker arm for wear or damage.

• Measure the rocker arm cam inner diameter.

Service Limit: Replace when less than 12.10 mm.

Rocker Arm Shaft

• Measure the active O.D. of the rocker arm cam

shaft and cam rocker arm.

Service Limit: Replace when less than 11.91 mm.

• Find the clearance between the rocker arm

shaft and the rocker arm.

Service Limit: Replace when less than 0.10mm.

Valve spring free length

• Measure the relaxed length of the intake and exhaust

valve springs.

Service limit:

Inner spring 35.00 mm

Outer spring 39.00 mm

Valve stem

• Check if valve stems are bent, cracked, or burned.

• Check the operation condition of valve stem in

the valve guide.

• Measure & record the valve stem outer diameter.

Service Limit:

IN: 4.90 mm

EX: 4.90 mm