CYLINDER HEAD
90-828631R3 MARCH 1999 Page 4A-27
Cleaning and Inspection
Oil Pump
1. Check oil pump components for pitting, scratches, and for the following measurements.
Replace oil pump if worn or out of specification.
2. Using a feeler gauge, measure the following oil pump clearances:
• between outer rotor and pump housing (a)
• between the inner rotor and outer rotor (b)
• between the outer rotor and pump housing (c)
55803
a
b
c
Oil Pump Clearances
a 0.001 - 0.006 in. (0.03 - 0.15 mm)
b 0.005 in. (0.12 mm)
c 0.001 - 0.003 in. (0.03 -0.08 mm)
Rocker Shaft and Rocker Arm
1. Measure rocker shaft diameter. Replace shaft if out of specification.
Rocker Shaft Diameter
0.6288 - 0.6296 in. (15.971 -15.991 mm)
2. Measure rocker arm inside diameter. Replace rocker arms if out of specification.
55804
Rocker Arm Inside Diameter
0.6299 - 0.6306 in. (16.000 -16.018 mm)
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