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Home >> Geo >> 1993 >> Prizm Base, Automatic >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Overhaul - A-240 "E" & "L" Series >> Transaxle Disassembly >> A-245E & A-246E Models

A-245E & A-246E Models

  1. Remove oil cooler pipes, breather hose, manual shift lever and park/neutral position switch. Remove filler tube and dipstick. Remove throttle cable retaining bolt. Remove solenoid harness connector retaining bolt.
  2. Remove oil pan and gasket. Remove magnet(s) from oil pan. Remove oil strainer (filter). Remove the manual detent spring. Disconnect the solenoid connectors. Remove the valve body assembly. Refer to VALVE BODY ASSEMBLY R & I  under ON-VEHICLE SERVICE. Remove throttle cable and solenoid sub-harness from transaxle case. Remove check ball body and ball, next to 2nd brake accumulator. Remove 2nd brake apply gasket. Remove 2nd brake drum seal. See Figure and Figure .
  3. Apply 14 psi (1 kg/cm2 ) of compressed air to oil passage to remove underdrive clutch accumulator piston and spring. See Figure. Remove forward clutch accumulator piston and springs. Apply 14 psi (1 kg/cm2 ) of compressed air to oil passage to remove direct clutch accumulator piston and spring. See Figure.
  4. Apply 14 psi (1 kg/cm2 ) of compressed air to oil passage to remove 2nd brake accumulator piston and spring. See Figure.
    NOTE: If manual shift linkage is damaged or needs to be disassembled, see MANUAL SHIFT LINKAGE  under COMPONENT DISASSEMBLY & REASSEMBLY.
  5. Remove 2nd brake band guide. Remove transaxle assembly bolts. Remove converter housing. Remove differential assembly. Remove apply gasket. Unbolt and remove oil pump assembly.
  6. Apply mark to 2nd coast brake servo apply piston rod where it meets case. Apply air 57-114 psi (4-8 kg/cm2 ) and measure piston rod travel (stroke). See Fig 2. Piston rod travel should be .059-.118" (1.5-3.0 mm). If rod travel is not within specification, further inspect band during disassembly.
  7. Remove 2nd coast brake piston snap ring. Apply 14 psi (1 kg/cm2 ) of compressed air to oil passage to remove 2nd coast brake cover. Remove 2nd coast brake piston and spring. See Fig 3.
  8. Remove direct clutch with forward clutch from transaxle case. Remove direct clutch from forward clutch. Remove thrust washer, bearings and races from forward clutch. See Fig 4.
    Fig 1: Removing Underdrive Clutch Accumulator Piston & Spring
    G95H19650Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Checking 2nd Coast Brake Piston Stroke
    G95C19655Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 3: Removing 2nd Coast Brake Cover
    G95D19656Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 4: Exploded View Of Transaxle Case Internal Components (A-245E & A-246E Shown, All Others Similar)
    G95A19679Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. Pull 2nd coast brake band pin and remove. Remove 2nd coast brake band. Remove front planetary ring gear. Remove race and bearing from ring gear. See Fig 4.
  10. Remove front planetary gear. Remove bearings and races from both sides of planetary gear. Remove sun gear, sun gear input drum, thrust washer, 2nd brake hub and No. 1 one-way clutch. Using compressed air, confirm 2nd brake piston operates smoothly. See Figure. Remove 2nd coast brake band guide.
  11. Remove 2nd brake drum retaining snap ring. Remove 2nd brake drum. Remove thrust washer and 2nd brake piston return spring. Remove plates, discs and flange. Note number and location of components. Remove No. 2 one-way clutch retaining snap ring. Remove No. 2 one-way clutch and rear planetary gear. See Fig 4.
  12. Remove thrust washers from both sides of planetary gear. Remove rear planetary ring gear with bearing and races. Using feeler gauge, measure 1st and reverse pack clearance. See Fig 5. Clearance should be .047-.089 (1.19-2.25 mm) for 1993 A-245E models. Clearance should be .095-.125 (2.42-3.18 mm) for 1994 A-245E and A-246E models.
  13. Remove flange retaining snap ring. Remove flange, plates and discs. Note number and location of components. Remove rear transaxle cover bolts. Tap rear cover using a plastic hammer. Remove cover. Using chisel, release staked area of intermediate shaft lock nut.
  14. Secure counterdriven gear with appropriate holder. Remove intermediate gear lock nut. Remove intermediate shaft. Press out counterdrive gear. Using chisel, release staked area of countershaft lock nuts. Remove both lock nuts.
  15. Using appropriate puller, remove counterdriven gear with thrust bearing. Remove countershaft assembly. Remove thrust bearing and race from countershaft. Remove underdrive clutch drum and anti-rattle clip. Using compressed air, confirm underdrive brake piston operates smoothly. See Figure. Remove oil seal rings. Using appropriate press and adapter, carefully remove underdrive brake snap ring.
  16. Remove flange, plates and discs. Note number and location of components. Remove brake return spring. Using compressed air, remove underdrive brake piston. See Fig 3. Using appropriate compressor, gradually compress spring assembly and remove snap ring. See Figure.
  17. Remove return spring assembly. Apply compressed air to oil passage in transaxle case and remove 1st and reverse brake piston. See Figure. If piston does not pop out, remove using needle-nose pliers.
  18. Remove parking lock pawl stopper plate, torsion spring and spring guide. Remove pawl shaft clamp, shaft and lock pawl. See Figure. Remove underdrive brake accumulator piston cover and gasket. Remove accumulator piston and spring.
Fig 5: Check 1st & Reverse Brake Clutch Pack Clearance
G95D19680Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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