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Radial clearance
Check radial clearance between outer rotor (1) and case (2),
using thickness gauge (3).
If clearance exceeds its limit, replace oil pump assembly.
Limit on radial clearance between outer rotor and
case for oil pump
: 0.310 mm (0.0122 in.)
Side clearance
Using straight edge (1) and thickness gauge (2), measure side
clearance.
If clearance exceeds its limit, replace oil pump assembly.
Limit on side clearance for oil pump inner rotor
: 0.15 mm ( 0.0059 in.)
Relief valve spring free length and load
Check relief valve spring free length and load as shown in figure.
If the measured valve spring length is lower than the specifica-
tion, replace relief valve spring.
Free length
Load at spring length
38.5 mm (1.52 in.)
ENGINE MECHANICAL (M13 ENGINE) 6A1-43
Standard
52.4 mm
(2.06 in.)
77 N
(7.7 kgf, 17.0 lb)
(6.9 kgf, 15.0 lb)
Limit
–
69 N
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