Repair For Components Parts (Part 1)
Oil Pump
COMPONENTS
DISASSEMBLY
1. Remove oil pump cover.
2. Remove return spring taking care not to damage converter housing.
INSPECTION
1. Inspect oil pump cover, cam ring, rotor and vanes for damage and visible wear.
2. Measure clearance between clutch housing and cam ring, rotor and vanes in at least four places along their circumstances. The maximum measured value should be within the specified range.
- Be sure to remove friction ring and vane ring when measuring clearance.
Standard clearance:
0.010 - 0.024 mm (0.0004 - 0.0009 in)
(Cam ring to oil pump cover)
0.017 - 0.031 mm (0.0007 - 0.0012 in)
(Rotor to oil pump cover)
0.017 - 0.031 mm (0.0007 - 0.0012 in)
(Vane to oil pump cover)
Wear limit: 0.034 mm (0.0013 in)
If the clearance is out of above specification, replace oil pump as an assembly.
3. 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)
ASSEMBLY
1. Install cam ring, O-ring and friction ring.
2. Install return spring and spring retainer.
3. Assemble rotor, vanes, rotor support ring and vane rings. Pay attention to direction of rotor.
4. Install oil pump cover.
Tighten down cover evenly in a criss-cross type pattern.
5. Rotate the pump when it has been assembled to ensure that all parts have been correctly assembled.
6. Install seal rings.
Refer to the image for proper locations of the two different types of seal rings.
- These seal rings can be cut or deformed if they are improperly seated in their grooves when the drum is Installed. Clean the ring grooves carefully and fill them with petroleum jelly. Then install the rings making sure they fit into the grooves as tightly as possible.
Control Cylinder
COMPONENTS
INSPECTION AND ASSEMBLY
- Inspect control cylinder body, control piston and cylinder plug for scratches or damage. Replace if necessary.
- When assembling, pay attention to the direction of lip seal.
- After assembling, check the operation.
Control Valve Assembly
Control Valve Assembly:
COMPONENTS
DISASSEMBLY
1. Remove solenoids.
a. Remove timing solenoid.
b. Remove O-ring from solenoid.
c. Remove shift solenoid A, shift solenoid B, line pressure solenoid and lock-up solenoid.
d. Remove O-rings from solenoids.
2. Remove solenoid body.
a. Place lower body facedown and remove bolts. Be careful not to drop solenoid body.
b. Place upper body face down, and remove solenoid body with separator gaskets and separator plate.
c. Remove separator gaskets, separator plate and oil filter from solenoid body.
3. Disassembly upper and lower bodies.
a. Place lower body facedown, and remove bolts, reamer bolts and support plate.
b. Position upper body downward Remove lower body with separator plate and separator gasket attached to upper body.
c. Remove oil filter, separator gaskets and separator plate from upper body.
d. Check to see that steel balls are properly positioned in upper body and then remove them from upper body.
Control Valve Upper Body
Part 1:
Part 2:
COMPONENTS
DISASSEMBLY
1. Remove valves at parallel pins.
Do not use a magnetic hand.
a. Remove parallel pins while pressing their corresponding plugs and sleeves.
Remove plug slowly to prevent internal parts from jumping out.
b. Place mating surface of valve facedown, and remove internal parts.
- If a valve is hard to remove, place valve body facedown and lightly tap it with a soft hammer.
- Be careful not to drop or damage valves and sleeves.
2. Remove valves at retainer plates.
a. Remove retainer plates while pressing their corresponding plugs, sleeves or springs.
b. Place mating surface of valve facedown, and remove internal parts.
- If a valve is hard to remove, lightly tap valve body with a soft hammer.
- Be careful not to drop or damage valves, sleeves, etc.
INSPECTION
Valve springs
- Measure free length and outer diameter of each valve spring. Also check for damage or deformation.
- Numbers of each valve spring listed in table below are the same as those in the image.
- Replace valve springs if deformed or fatigued.
Control valves
- Check sliding surfaces of valves, sleeves and plugs.
ASSEMBLY
1. Lubricate the control valve body and all valves with A.T.F. Install control valves by sliding them carefully into their bores.
Be careful not to scratch or damage valve body.
- Wrap a small screwdriver with vinyl tape and use it to insert the valves into proper position.
- Pressure regulator valve -
Position plug in sleeve and install pressure regulator valve on upper body.
2. Install parallel pins and retainer plates
- While pushing plug, install parallel pin.
- Insert retainer plate while pressing their corresponding plugs, sleeves or springs.
Control Valve Assembly
INSPECTION
Separator plates
Check to make sure that separator plate is free of damage and not deformed and oil holes are clean.
Oil filter
Check to make sure that filter is not clogged or damaged
Timing solenoid
Measure resistance Refer to "Electrical Components Inspection".
4-unit solenoid assembly (Line pressure solenoid, lock-up solenoid and shift solenoids A and B)
- Check that filter is not clogged or damaged (line pressure solenoid and lock-up solenoid).
- Measure resistance of each solenoid - Refer to "Electrical Components Inspection".
Fluid temperature sensor
Measure resistance - Refer to "Electrical Components Inspection".
ASSEMBLY
1. Assemble upper and lower bodies.
a. Place oil circuit of upper body face up. Install steel balls in their proper positions.
b. Install upper body separator gasket, separator plate and lower body separator gasket on upper body.
c. Fit oil filter and install lower body on upper body.
d. Temporarily assemble lower and upper bodies, using reamer bolt as a guide.
Be careful not to dislocate or drop steel balls and oil filter.
2. Install solenoid body on control valve body.
a. Fit oil filter and install solenoid body separator gaskets and separator plate on solenoid body.
b. Install solenoid body on control valve body and temporarily tighten bolts.
c. Install accumulator support plate and harness clips in their proper locations, and tighter all bolts.
Bolt (A):
Torque: 3.4 - 4.4 N.m (0.35 - 0.45 kg-m, 2.5 - 3.3 ft-lb)
Other bolts:
Torque: 7 - 9 N.m (0.7 - 0.9 kg-m, 5.1 - 6.5 ft-lb)
3. Install solenoids.
a. Attach O-ring and install 4-unit solenoid assembly on solenoid body.
Torque: 7 - 9 N.m (0.7 - 0.9 kg-m, 5.1 - 6.5 ft-lb)
b. Attach O-ring, and install and tighten timing solenoid firmly.