Automatic Transmission Unit Assembly Inspection
Automatic Transmission Unit Assembly Inspection^ Hold reverse clutch hub (1), and turn one-way No.2 clutch assembly (2).
Check that one-way No.2 clutch assembly (2) can be turned freely (3) clockwise and locked (4) counterclockwise.
^ Check that sliding surfaces of discs, plate and flange are not worn or burnt. If necessary replace them.
NOTE:
^ If disc lining is exfoliated, discolored or worn hardly, replace all discs.
^ If only a part of printed numbers is corroded, replace all discs.
^ Before assembling new discs, soak them in A/T fluid for at least 15 minutes.
^ Measure free length of 2nd (No.3) brake piston return spring including spring seat.
2nd (No.3) brake piston return spring free length "a": 15.72 mm (0.619 inch)
NOTE:
^ Do not apply excessive force when measuring spring free length.
^ Perform measurement at several points.
^ Measure planetary pinion gear thrust clearance by using thickness gauge.
If clearance exceeds limit, replace front planetary gear assembly.
^ Measure inside diameter of front planetary gear assembly bushing.
If inside diameter exceeds limit, replace front planetary gear assembly.
Front planetary gear assembly bushing inside diameter limit 57.48 mm (2.263 inch)
^ Install one-way No.1 clutch assembly (1) to one-way No.1 clutch inner race (2).
Hold one-way No.1 clutch inner race (2), and turn one-way No.1 clutch assembly (1). Check that one-way No.1 clutch assembly (1) can be turned freely (3) counterclockwise and locked (4) clockwise.
Remove one-way No.1 clutch assembly (1) from one-way No.1 clutch inner race (2).
^ Measure free length of No.1 brake piston return spring including spring seat.
No.1 brake piston return spring free length "a": 17.05 mm (0.671 inch)
NOTE:
^ Do not apply excessive force when measuring spring free length.
^ Perform measurement at several points.
^ Measure free length of No.2 brake piston return spring including spring seat.
No.2 brake piston return spring free length "a": 17.45 mm (0.687 inch)
NOTE:
^ Do not apply excessive force when measuring spring free length.
^ Perform measurement at several points.
^ Measure planetary pinion gear thrust clearance by using thickness gauge.
If clearance exceeds limit, replace middle planetary gear assembly.
Middle planetary pinion gear thrust clearance
Standard: 0.12 - 0.68 mm (0.005 - 0.027 inch)
Limit: 0.73 mm (0.029 inch)
^ Hold rear planetary ring gear flange sub assembly (1) and turn one-way No.3 clutch assembly (2). Check that one-way No.3 clutch assembly (2) can be turned freely (3) counterclockwise and locked (4) clockwise.
^ Measure inside diameter of planetary ring gear assembly bushing.
If inside diameter exceeds limit, replace planetary ring gear.
Planetary ring gear bushing inside diameter limit 32.19 mm (1.267 inch)
^ Set intermediate shaft between two "V" blocks, and measure its runout by using a dial gauge.
If runout exceeds limit, replace intermediate shaft with new one.
^ Measure outside diameter of intermediate shaft positions shown in figure.
If outside diameter is below limit, replace intermediate shaft with new one.
Outside diameter of intermediate shaft
Outside diameter of intermediate shaft:
^ Measure planetary pinion gear thrust clearance by using thickness gauge.
If clearance exceeds limit, replace rear planetary gear assembly.
^ Measure inside diameter of rear planetary gear assembly bushing.
If inside diameter exceeds limit, replace rear planetary gear assembly.
^ Measure free length of 1st & reverse (No.4) brake return spring including spring seat.
NOTE:
^ Do not apply excessive force when measuring spring free length.
^ Perform measurement at several points.
