Disassembly & Reassembly
On N4A-EL, remove snap ring from input shaft, and remove sensing rotor and input shaft. See Fig 1 . On all transmissions, remove oil pump bolts and separate pump cover and pump housing. Match mark oil pump gears with appropriate marker. DO NOT use a punch. Remove roll pin and remove lock-up control valve components (if necessary). To reassemble, reverse disassembly procedure.