See Figure 1
On all cars but the GLC and 626, this adjustment can be made by removing the cover located on the lower right front of the transmission (three bolts). On the GLC and 626, the transmission pan must be removed; the servo piston stem and locknut are visible at the left front.
- Loosen the locknut.
- Torque the servo piston stem to 9-11 ft. lbs. (12-15 Nm), then back it off exactly two turns.
- Hold the stem stationary and tighten the locknut to 11-29 ft. lbs. (15-39 Nm).
- If applicable, install the transmission pan; otherwise, install the cover on the transmission.
The band adjustment stud is located on the right side of the transmission under a metal cap which is held by three bolts.
- Raise the car and support it on jackstands.
- Remove the protective cap from over the band adjuster.
- Loosen the locknut on the adjuster.
- Tighten the adjuster to 9-11 ft. lbs. (12-15 Nm) using the special Mazda socket (tool number 49-0378-345) or an equivalent tool.
- Back off the adjuster two full turns.
- Hold the adjuster from moving and tighten the locknut to 11-29 ft. lbs. (15-39 Nm).
- Install the protective cap.
1978-84 Except RX-7
See Figure 2
- Place the transmission selector lever in Neutral.
- Disconnect the clevis from the lower end of the selector arm.
- Move the manual lever to the N position.
The N position is the third detent from the back.
- Loosen the two clevis retaining nuts and adjust the clevis so that it freely enters the lever hole.
- Tighten the retaining nuts.
- Connect the clevis to the lever and secure with the spring washer, flat washer and retaining clip.
See Figure 3
- Shift the selector lever into the Neutral position.
- Raise the vehicle and support it on jackstands.
- Disconnect the T-joint from the lower end of the selector lever operating arm.
- Move the manual selector lever on the transmission into the Neutral position, which is the third detent position from the rear of the transmission. Adjust the T-joint so that it freely enters the hole in the selector lever operating arm.
- Tighten the attaching nuts.
- Connect the T-joint to the selector lever operating arm and secure.
- Lower the vehicle and check the operation of the transmission in each selector lever position.
- Remove the boot plate.
- Place the shifting lever in the Park position.
- Loosen the selector lever plate setting bolt.
- Raise and support the vehicle safely.
- Place the selector rod at the Park position, the first detent position from the rear of the transmission.
- Torque the selector lever plate setting bolt to 30 ft. lbs. (41 Nm). Check the operation after adjustment.
See Figure 4
- Remove the shifter cover.
- Turn locknuts A and B to the proper adjusting position (see illustration).
- Move the shifter level to the Park position.
- Shift the transmission. Make sure the vehicle is supported safely when working underneath.
- Turn locknut A by hand until it just touches the shifter lever, then back it off 1 full turn.
- Torque locknut B to 8 ft. lbs. (11 Nm).
- Move the shifter and make sure there is a click at each gear when shifting from Park through 1st. The positions of the selector lever and the indicator should be exact. The release button should return smoothly when used to shift the selector.
See Figure 5
- Remove the console shifter cover assembly. Position the transmission selector lever in the Park detent.
- Loosen locknuts A and B (see illustration). Move the selector from the Park range by moving the manual shaft linkage on the transmission.
- Using a feeler gauge, check the clearance between the first locknut, behind the shifter bracket. Adjust the shift lever and locknut to 0.04 in. (1mm).
- Remove the feeler gauge and tighten locknut B .
- On 1989 929s, measure the clearance between the guide plate and the guide pin in the Park position. There should be about 0.04 in. (1mm) clearance on the front side and about 0.02 in. (0.5mm) for the rear side.
- Move the selector lever through the other gear ranges and check to be sure that there is clearance between the selector lever bracket and the guide pin.
- If clearance does not exist, readjust both locknuts.
KICKDOWN SWITCH & DOWNSHIFT SOLENOID
See Figure 6
The kickdown switch is located on the accelerator linkage above the pedal.
- Check the accelerator linkage for smooth operation.
- Turn the ignition ON , but do not start the engine.
- Depress the accelerator pedal fully to the floor. As the pedal nears the end of its travel, a light click should be heard from the downshift solenoid.
- If the kickdown switch operates too soon/too late, loosen the locknut on the switch shaft. Adjust the shaft so that the accelerator linkage makes contact with it when the pedal is depressed approximately 7 / 8 of the way to the floor. Tighten the locknut.
- If the switch is operating properly, check the solenoid by listening as an assistant depressed the pedal. If no noise comes from the solenoid, check the solenoid wiring and the switch.
- If the circuit is in good condition, remove the wire from the solenoid and connect it to a 12V DC power source. If the solenoid does not click when connected, it is defective and should be replaced.
When the solenoid is removed, about two pints of transmission fluid will leak out; have a container ready to catch it. Remember to add more fluid to the transmission after installing the new solenoid.626
- Disengage the wiring connectors from the kickdown switch.
- Unscrew the kickdown switch a few turns.
- Fully depress the accelerator pedal.
- Gradually thread in the kickdown switch until you hear a clicking sound then tighten it inward 1 / 2 turn more.
- Tighten the locknut and attach the wiring connectors.