2001 INFINITI QX4 check oil

SAT652A
4. While holding cam ring and spring lift out cam ring spring.
IBe careful not to damage oil pump housing.
IHold cam ring spring to prevent it from jumping.
SAT653A
5. Remove cam ring and cam ring spring from oil pump housing.
SAT654A
6. Remove pivot pin from control piston and remove control pis-
ton assembly.
SAT655A
7. Remove oil seal from oil pump housing.
IBe careful not to scratch oil pump housing.
SAT656A
INSPECTIONNBAT0114Oil Pump Cover, Rotor, Vanes, Control Piston, Side
Seals, Cam Ring and Friction Ring
NBAT0114S01ICheck for wear or damage.
REPAIR FOR COMPONENT PARTS
Oil Pump (Cont'd)
AT-298

SAT657A
SAT658A
Side ClearancesNBAT0114S02IMeasure 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.
IBefore 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-360.
IIf not within standard clearance, replace oil pump assembly
except oil pump cover assembly.
Seal Ring ClearanceNBAT0114S03IMeasure 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)
IIf not within wear limit, replace oil pump cover assembly.
SAT081E
ASSEMBLYNBAT01151. Drive oil seal into oil pump housing.
IApply ATF to outer periphery and lip surface.
SAT654A
2. Install cam ring in oil pump housing by the following
a. Install side seal on control piston.
IPay attention to its direction Ð Black surface goes toward
control piston.
IApply petroleum jelly to side seal.
b. Install control piston on oil pump.
SAT660A
c. Install O-ring and friction ring on cam ring.
IApply petroleum jelly to O-ring.
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PD
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REPAIR FOR COMPONENT PARTS
Oil Pump (Cont'd)
AT-299

SAT661A
d. Assemble cam ring, cam ring spring and spring seat. Install
spring by pushing it against pump housing.
SAT651A
e. While pushing on cam ring install pivot pin.
SAT662A
3. Install rotor, vanes and vane rings.
IPay attention to direction of rotor.
SAT649A
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.
SAT663A
5. Install new seal rings carefully after packing ring grooves with
petroleum jelly. Press rings down into jelly to a close fit.
ISeal rings come in two different diameters. Check fit care-
fully in each groove.
Small dia. seal ring:
No mark
Large dia. seal ring:
Yellow mark in area shown by arrow
IDo not spread gap of seal ring excessively while install-
ing. It may deform ring.
REPAIR FOR COMPONENT PARTS
Oil Pump (Cont'd)
AT-300

SAT671A
e. Check to see that steel balls are properly positioned in upper
body. Then remove them from upper body.
SAT672A
INSPECTIONNBAT0118Lower and Upper BodiesNBAT0118S01ICheck to see that there are pins and retainer plates in lower
body.
SAT673A
ICheck to see that there are pins and retainer plates in upper
body.
IBe careful not to lose these parts.
SAT674A
ICheck to make sure that oil circuits are clean and free from
damage.
ICheck tube brackets and tube connectors for damage.
SAT675A
Separator PlateNBAT0118S02IMake sure that separator plate is free of damage and not
deformed and oil holes are clean.
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REPAIR FOR COMPONENT PARTS
Control Valve Assembly (Cont'd)
AT-303

SAT676A
Pilot FilterNBAT0118S03ICheck to make sure that filter is not clogged or damaged.
SAT149G
Torque Converter Clutch Solenoid ValveNBAT0118S04ICheck that filter is not clogged or damaged.
IMeasure resistance. Refer to ªComponent Inspectionº, AT-152.
Line Pressure Solenoid ValveNBAT0118S05ICheck that filter is not clogged or damaged.
IMeasure resistance. Refer to ªComponent Inspectionº, AT-167.
SAT095B
3-Unit Solenoid Assembly (Overrun Clutch Solenoid
Valve and Shift Solenoid Valves A and B)
NBAT0118S06IMeasure resistance of each solenoid. Refer to ªComponent
Inspectionº, AT-171, AT-175 and AT-189.
SAT096BA
A/T Fluid Temperature Sensor and SwitchNBAT0118S07IMeasure resistance. Refer to ªComponent Inspectionº, AT-110
and AT-264.
SAT671A
ASSEMBLYNBAT01191. Install upper and lower bodies.
a. Place oil circuit of upper body face up. Install steel balls in their
proper positions.
REPAIR FOR COMPONENT PARTS
Control Valve Assembly (Cont'd)
AT-304

SAT681A
b. Install reamer bolts from bottom of upper body.
SAT682A
c. Place oil circuit of lower body face up. Install orifice check
spring, orifice check valve and pilot filter.
SAT197B
d. Install lower separator plate on lower body.
e. Install and temporarily tighten support plates, A/T fluid tem-
perature sensor and tube brackets.
SAT198B
f. Temporarily assemble lower and upper bodies, using reamer
bolt as a guide.
IBe careful not to dislocate or drop steel balls, orifice
check spring, orifice check valve and pilot filter.
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REPAIR FOR COMPONENT PARTS
Control Valve Assembly (Cont'd)
AT-305

Reverse Clutch
COMPONENTSNBAT0128
SAT157K
SAT841A
DISASSEMBLYNBAT01291. Check operation of reverse clutch.
a. Install seal ring onto oil pump cover and install reverse clutch.
Apply compressed air to oil hole.
b. Check to see that retaining plate moves to snap ring.
c. If retaining plate does not contact snap ring,
ID-ring might be damaged.
IOil seal might be damaged.
IFluid might be leaking past piston check ball.
SAT842A
2. Remove drive plates, driven plates, retaining plate, dish plate
and snap ring.
REPAIR FOR COMPONENT PARTS
Reverse Clutch
AT-314

SAT524G
3. Remove snap ring from clutch drum while compressing clutch
springs.
IDo not expand snap ring excessively.
4. Remove spring retainer.
SAT844A
5. Install seal ring onto oil pump cover and install reverse clutch
drum. While holding piston, gradually apply compressed air to
oil hole until piston is removed.
IDo not apply compressed air abruptly.
6. Remove D-ring and oil seal from piston.
INSPECTIONNBAT0130Reverse Clutch Snap Ring and Spring RetainerNBAT0130S01ICheck for deformation, fatigue or damage.
SAT845A
Reverse Clutch Drive PlatesNBAT0130S03ICheck facing for burns, cracks or damage.
IMeasure thickness of facing.
Thickness of drive plate:
Standard value: 1.90 - 2.05 mm (0.0748 - 0.0807 in)
Wear limit: 1.80 mm (0.0709 in)
IIf not within wear limit, replace.
Reverse Clutch Dish PlateNBAT0130S04ICheck for deformation or damage.
SAT846A
Reverse Clutch PistonNBAT0130S05IShake piston to assure that balls are not seized.
IApply compressed air to check ball oil hole opposite the return
spring. Make sure there is no air leakage.
IAlso apply compressed air to oil hole on return spring side to
assure that air leaks past ball.
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REPAIR FOR COMPONENT PARTS
Reverse Clutch (Cont'd)
AT-315