Toyota 3R-B 1969, Руководство по ремонту

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L=4 L U B R I C A T I N G S Y S T F . M - Oil P,.™p
4. R e m o v e the oil pump assembly
with the strain er.
Disassembly
1. R em ove the oil s t r a in e r .
2. R em o v e the relief valve plug from
the oil pump c o v e r , then takeout
the spring and the relief v a lv e .
3. R em ove the oil pump c o v e r .
4. R e m o v e the driven ro tor ( l ) and
the oil pump shaft (2 ) with the
drive ro tor (3 ) .
0.12 mm (0.0026 ~ 0 .0047" ) , and
if the clearance exceeds 0.2 mm
( 0 . 0 0 8 " ) , replace the rotors as
a s e t .
F i g . 6-6 Checking T ip V4658
Clearance
4. Inspect the side clearance between
the rotor and the installing surface
of the c o v e r .
T h e clearance should be 0.03 to
0.07 mm (0.0012 ~ 0 . 0 0 2 7 " ) .
If the clearance exceed s 0.15 mm
( 0 . 0 0 6 " ) , replace the rotor and/
o r the c o v e r .
F i g . 6-5 Disassembling Oil V4657
Pump
Inspection & R ep air
Wash all parts in cleaning solvent,
and check the following items.
1 . Check the oil pump shaft fo r e x ­
c e s s iv e w e a r and s c o r e s .
If n e c e s s a r y , re p la ce the shaft.
2. Check the drive ro to r and the
driven ro to r fo r e x c e s s iv e w e a r
and s c o r e s . If d efective, replace
the ro to r s as a set.
D r iv e ro to r diameter is 29.70 to
29.74 mm (1 .1 6 9 ~ 1 . 1 7 1 " ) .
D riven ro to r diameter is 40.53 to
40.56 mm (1.595 - 1 .5 9 7 " ) .
3. Inspect the tip clea ran ce between
the d riv e ro to r (1 ) and the driven
ro to r (2 ) .
T h e c lea ran ce should be 0.07 to
F i g . 6-7 Checking S id e V4659
Clearance
5 . Inspect the body clearance between
the driven rotor (1 ) and the body
( 2 ) .
T h e clearan ce should be 0.10 to
0.16 mm (.0.004 ~ 0 . 0 0 6 " ) .
If the clearan ce exceeds 0.2 mm
( 0 . 0 0 8 " ) , replace the body o r the
ro tor s e t .
6 . Check the relief va lve fo r proper
L im it 0 . 15mm
(0 -0 0 6 )