Contents Section: Automatic Trans All sections

Automatic Transaxle Overhaul (F5A5A): Overview Mitsubishi Eclipse IV рестайлинг

Automatic Trans 2 illustrations ~174 words

GENERAL DESCRIPTION

This automatic transaxle is made up of the following main parts.

The torque converter employs a 3 element, 1 step, 2 phase lock-up clutch.

The gear train is made up of 4 multi-plate clutches, 2 multi-plate brakes, 2 planetary gears, band type brake and 2 one-way clutch made up of a sun gear, carrier, pinion gear and annulus gear.

The cases consist of a converter housing, transaxle case, rear cover and a valve body cover.

Parts related to oil pressure regulation are the oil pump, which pressurizes the oil; the regulator, which controls the pressure setting; the solenoid valves, which change the oil pressure with electrical signals; the pressure control valve, which controls the oil pressure coming from the solenoid valve that affects each clutch and brake; each kind OD valve, which carry out the retention of the oil pressure through the lines; and finally the valve body, which houses all the valves.

Scheme 898

Scheme 898: SECTIONAL VIEW

Scheme 899

Scheme 899: HYDRAULIC CIRCUIT

VALVE BODY SPRING IDENTIFICATION TABLE

SPRINGWIRE DIAMETER mm (in)OUTSIDE DIAMETER mm (in)FREE LENGTH mm (in)NUMBER OF LOOPS
Regulator valve spring1.8 (0.071)15.7 (0.618)86.7 (3.413)24
Underdrive pressure control valve spring0.7 (0.028)7.6 (0.299)37.7 (1.484)25
Overdrive pressure control valve spring0.7 (0.028)7.6 (0.299)37.7 (1.484)25
Low-reverse pressure control valve spring0.7 (0.028)7.6 (0.299)37.7 (1.484)25
Second pressure control valve spring0.7 (0.028)7.6 (0.299)37.7 (1.484)25
Torque converter spring1.6 (0.063)11.2 (0.441)34.4 (1.354)12.5
Torque converter clutch control valve spring0.7 (0.028)5.9 (0.232)28.1 (1.106)19
Fail-safe valve spring0.7 (0.028)8.9 (0.350)21.9 (0.862)9.5
Damping valve spring1.0 (0.039)7.7 (0.303)35.8 (1.409)17
Line relief valve spring1.0 (0.039)7.0 (0.276)17.3 (0.681)10
Orifice check ball spring0.5 (0.020)4.5 (0.177)17.2 (0.677)15

VALVE BODY SPRING IDENTIFICATION TABLE