LUB RICATION
S
YST
E
M
- O i l Pump
I N S PECTION O F Oil PU M P
1 .
I N SPECT R E L I E F
VALVE
LU-9
Coat the valve with engine oil and check t h a t i t falls
smoothly into t h e valve hole by its own weight.
I f
opera tion is nOI as specified, replace the relief valve.
If
neceSSary, replace the oil pump body.
('
2.
I N S PECT
DRIVE A N D DRIVEN ROTORS
A.
Inspect Rotor Body C learance
Using a feeler gauge, measure the clearance between the
driver rotor and body.
S tandard
body clearanc e :
0 . 1 44 - 0.2 1 9
mm
10.0067 - 0.0086
in.!
Maximum body clearance :
0.40
mm
10.0 1 5 7 in.1
II
t h e clearance is greater tMan ma)(imum. replace rotors If
necess a ry, replace the oil pump body.
B .
Inspect Rotor S ide
C learance
Using a feeler gauge and precision straight edge, measure
the clearance belween t h e rotor and precision straight
edge.
Sta ndard side
clearance:
0.035 - 0.090
mm
{0.00 1 4 - 0.0036
in.!
M a x imum
side
c learance :
0 . 1 5
mm
10.0069 in.1
I f the clea rance i s g rea ler than ma)(imum, rep lace the
rotors If necessary, replace t h e o i l pump body.
C.
I n
sp
ect Rotor T ip C learance
Using a feeler gau ge, measure Ihe clearance between the
drive and driven rolors .
Sta ndard tip clearance:
0.1 1 0 - 0.240
mm
(0.0043 - 0.0094 inJ
Maximum
tip
clearance :
0.30
mm
10.01 1 8
in.!
If
Ihe clearance i s g reater than ma)(imum, replace t h e
rotors.
3 .
I NSPECT DRIVE
S P L I N E
U s i n g a dial indicator, measure the backlash while t u m i n g
the d riven r o l o r clockwise a n d counterclockw ise in several
places.
Standard backlas h :
0.541 - 0.790
mm
{0.02 1 3 - 0.03 1 1 in.!
Maximum backlash:
1 . 00
mm
(0.0394
in.!
If
the backlash
IS
g reater than ma)(imum, replace the
rotors and spline
Содержание 12H-T
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