Rampage L4-135 2.2L (1983)
Fig. 31 Measuring oil pump outer rotor thickness
Fig. 32 Measuring clearance between oil pump rotors
OIL PUMP SERVICE
1. Measure the following oil pump clearances:
a. Endplay. Endplay should be 0.001 - 0.006 inch on 1982 vehicles, or 0.001 - 0.004 inch on 1983 - 84 vehicles.
b. Outer rotor thickness. Thickness should be 0.825 inch, minimum. Install outer rotor with chamfered edge in pump body.
c. Clearance between rotors, should be 0.010 inch, maximum.