2000 NISSAN PATROL Electronic Repair Manual

c. While pushing detent spring down, remove manual plate and
parking rod from transmission case.
d. Remove manual shaft from transmission case.
e. Remove spacer and detent spring from transmission case.
f. Remove oil seal from transmission case.
SAT935A
SAT043B
SAT934A
SAT044B
DISASSEMBLY
AT-1143

Oil Pump
DISASSEMBLY
1. Loosen bolts in numerical order and remove oil pump cover.
2. Remove rotor, vane rings and vanes.
+Inscribe a mark on back of rotor for identification of
fore-aft direction when reassembling rotor. Then remove
rotor.
3. While pushing on cam ring remove pivot pin.
+Be careful not to scratch oil pump housing.
SAT648AB
SAT649A
SAT650A
SAT651A
REPAIR FOR COMPONENT PARTS
AT-1144

4. While holding cam ring and spring lift out cam ring spring.
+Be careful not to damage oil pump housing.
+Hold cam ring spring to prevent it from jumping.
5. Remove cam ring and cam ring spring from oil pump hous-
ing.
6. Remove pivot pin from control piston and remove control
piston assembly.
7. Remove oil seal from oil pump housing.
+Be careful not to scratch oil pump housing.
INSPECTION
Oil pump cover, rotor, vanes, control piston, side
seals, cam ring and friction ring
+Check for wear or damage.
SAT652A
SAT653A
SAT654A
SAT655A
SAT656A
REPAIR FOR COMPONENT PARTS
Oil Pump (Cont'd)
AT-1145

Side clearances
+Measure side clearances between end of oil pump housing
and cam ring, rotor, vanes and control piston. Measure in at
least four places along their circumferences. Maximum mea-
sured values should be within specified positions.
+Before measurement, check that friction rings, O-ring,
control piston side seals and cam ring spring are
removed.
Standard clearance (Cam ring, rotor, vanes and
control piston):
Refer to SDS, AT-1210.
+If not within standard clearance, replace oil pump assembly
except oil pump cover assembly.
Seal ring clearance
+Measure clearance between seal ring and ring groove.
Standard clearance:
0.10 - 0.25 mm (0.0039 - 0.0098 in)
Wear limit:
0.25 mm (0.0098 in)
+If not within wear limit, replace oil pump cover assembly.
ASSEMBLY
1. Drive oil seal into oil pump housing.
+Apply ATF to outer periphery and lip surface.
2. Install cam ring in oil pump housing by the following steps.
a. Install side seal on control piston.
+Pay attention to its direction Ð Black surface goes
toward control piston.
+Apply petroleum jelly to side seal.
b. Install control piston on oil pump.
c. Install O-ring and friction ring on cam ring.
+Apply petroleum jelly to O-ring.
SAT657A
SAT658A
SAT081EA
SAT654A
SAT660A
REPAIR FOR COMPONENT PARTS
Oil Pump (Cont'd)
AT-1146

d. Assemble cam ring, cam ring spring and spring seat. Install
spring by pushing it against pump housing.
e. While pushing on cam ring install pivot pin.
3. Install rotor, vanes and vane rings.
+Pay attention to direction of rotor.
4. Install oil pump housing and oil pump cover.
a. Wrap masking tape around splines of oil pump cover assem-
bly to protect seal. Position oil pump cover assembly in oil
pump housing assembly, then remove masking tape.
b. Tighten bolts in a criss-cross pattern.
5. Install new seal rings carefully after packing ring grooves with
petroleum jelly. Press rings down into jelly to a close fit.
+Seal rings come in two different diameters. Check fit
carefully in each groove.
Small dia. seal ring:
No mark
Large dia. seal ring:
Yellow mark in area shown by arrow
+Do not spread gap of seal ring excessively while install-
ing. It may deform ring.
SAT661A
SAT651A
SAT662A
SAT649A
SAT663A
REPAIR FOR COMPONENT PARTS
Oil Pump (Cont'd)
AT-1147

Control Valve Assembly
SAT141J
REPAIR FOR COMPONENT PARTS
AT-1148

DISASSEMBLY
1. Remove solenoids.
a. Remove torque converter clutch solenoid valve and side
plate from lower body.
b. Remove O-ring from solenoid.
c. Remove line pressure solenoid valve from upper body.
d. Remove O-ring from solenoid.
e. Remove 3-unit solenoid assembly from upper body.
f. Remove O-rings from solenoids.
2. Disassemble upper and lower bodies.
a. Place upper body facedown, and remove bolts, reamer bolts
and support plates.
b. Remove lower body, separator plate and separate gasket as
a unit from upper body.
+Be careful not to drop pilot filter, orifice check valve,
spring and steel balls.
c. Place lower body facedown, and remove separate gasket
and separator plate.
d. Remove pilot filter, orifice check valve and orifice check
spring.
SAT194B
SAT667A
SAT043G
SAT195B
SAT670A
REPAIR FOR COMPONENT PARTS
Control Valve Assembly (Cont'd)
AT-1149

e. Check to see that steel balls are properly positioned in upper
body. Then remove them from upper body.
INSPECTION
Lower and upper bodies
+Check to see that there are pins and retainer plates in lower
body.
+Check to see that there are pins and retainer plates in upper
body.
+Be careful not to lose these parts.
+Check to make sure that oil circuits are clean and free from
damage.
+Check tube brackets and tube connectors for damage.
Separator plates
+Make sure that separator plate is free of damage and not
deformed and oil holes are clean.
SAT671A
SAT672A
SAT673A
SAT674A
SAT675A
REPAIR FOR COMPONENT PARTS
Control Valve Assembly (Cont'd)
AT-1150