Vane, Rotor, And Cover Clearance; Rotor And Vane Clearance; Vane And Pump Body Clearance - Isuzu A-4JA1 Workshop Manual

Make the necessary adjustments, repairs, and part replacements if excessive wear or damage is dis-
covered during inspection.
INSPECTION AND REPAIR

Vane, Rotor, and Cover Clearance

Use a feeler gauge to measure the clearance between
the vane, the rotor, and the cover.
If the clearance between the vane, the rotor, and the
cover exceeds the specified limit, the rotor set (pin,
shaft, rotor, and vane) must be replaced.
Vane, Rotor, and Cover Clearance
Standard
0.02 – 0.07 (0.0008 – 0.0028)

Rotor and Vane Clearance

Use a feeler gauge to measure the clearance between
the rotor and the vane.
If the clearance between the rotor and the exceeds the
specified limit, the rotor kit (shaft, rotor, and vane) must
be replaced.
Rotor and Vane Clearance
Standard
0.14 (0.006) or less

Vane and Pump Body Clearance

Use a feeler gauge to measure the clearance between
the vane and the pump body.
If the clearance between the vane and the pump body
exceeds the specified limit, the entire pump assembly
must be replaced.
Vane and Pump Body Clearance
Standard
0.20 – 0.27 (0.008 – 0.011)
LUBRICATING SYSTEM
mm(in)
Limit
0.15 (0.006)
mm(in)
Limit
0.20 (0.008)
mm(in)
Limit
0.40 (0.016)
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