Servicing - A/t Nissan 300ZX Z31

IDENTIFICATION

TRANSMISSION CODES

SERVICE INTERVAL

Inspect fluid level every 15,000 miles or 12 months. If under severe usage, change every 30,000 miles or 24 months.

Transaxle & Transmission

1. Check fluid with engine and transmission at normal operating temperatures (this is reached after several minutes of driving). With vehicle standing level and at idle, shift transmission through all positions and return to "P" position.
2. Clean area around dipstick. Remove dipstick, wipe clean, insert and withdraw. Level should be between "H" and "L" marks, if not, add as necessary.
3. Dipsticks on some models may be marked with "HOT" and "COLD" ranges. Use cold range if fluid is between 86-120°F (30-50°C).

Note. Normal fluid should be clear with a Pink color and should not have a strong burnt odor.

Transfer Case

Oil level should be at bottom of fill hole.

RECOMMENDED FLUID

All automatic transmissions use Dexron automatic transmission fluid. All transfer cases use SAE 80W-90 (API GL-4).

Note. Dexron is not the same fluid as Dexron II. Dexron fluid is available at Nissan dealerships.

FLUID CAPACITY

TRANSMISSION REFILL CAPACITIES

1. Loosen oil pan bolts and allow ATF to drain. Remove oil pan and clean pan and screen thoroughly. Install pan using a new gasket. Add fluid through filler tube.
2. Bring transmission to normal operating temperature. Shift transmission through all gears and return to "P" (Park). Check fluid level and add to obtain appropriate level.

Pickup (4WD W/L3N71B)

To adjust second brake band, drain fluid and remove pan. Loosen lock nut on piston stem. Tighten piston stem to 108-132 INCH lbs. (12-15 N.m). Back stem off 3 turns. Hold stem and tighten lock nut to 11-29 ft. lbs. (15-39 N.m).

Pickup (2WD), 200SX & 300ZX

1. To adjust second brake band, drain fluid and remove pan. Loosen lock nut on piston stem. Tighten piston stem to 108-132 INCH lbs. (12-15 N.m). Back stem off 3 turns. Hold stem and tighten lock nut to 11-29 ft. lbs. (15-39 N.m).
2. On overdrive band for L4N71B and E4N71B (4-speed models), loosen lock nut on piston stem. Tighten piston stem to 60-84 INCH lbs. (7-10 N.m). Back out 2 turns. Hold stem and tighten lock nut to 11-29 ft. lbs. (15-39 N.m).

Pulsar NX & Sentra

Remove transmission oil pan. Loosen brake band adjuster lock nut. Tighten anchor pin to 36-48 INCH lbs. (4-6 N.m). Back off anchor pin 2 1/2 turns. Tighten lock nut (while holding anchor pin), to 12-16 ft. lbs. (16-22 N.m).

Maxima, Stanza & Stanza Wagon

Remove transmission oil pan. Loosen anchor pin lock nut. Tighten anchor pin to 36-48 INCH lbs. (4-6 N.m). (Scheme 1) Back off anchor pin 5 1/4 turns. Tighten lock nut, while holding anchor pin, to 23-31 ft. lbs. (31-42 N.m).

Scheme 1

Pickup (2WD With Floor Shift), 200SX & 300ZX

1. Starting in "P" position, shift through all positions to "1" position. If detents cannot be felt or pointer is improperly aligned, linkage must be adjusted.
2. Place shift lever in "P" position. Loosen lock nuts on rod. (Scheme 2) Tighten lock nut "X" until it touches trunnion, pulling selector lever toward "R" range side without pushing button.
3. Back off lock nut "X" one turn on Pickup models and 1/4-1/2 turn on others. Tighten lock nut "Y" to 72-96 INCH lbs. (8-11 N.m). Recheck positions, ensuring selector lever moves smoothly.

Scheme 2

Maxima, Pulsar NX, Sentra, Stanza

1. Move control lever from "P" to "1". Ensure control lever can move smoothly and without any sliding noise. If not, readjust cable.
2. Place selector lever at "P" range. Loosen lock nuts holding shift cable to shift rod. (Scheme 3) Ensure selector lever is in "P" range and transaxle is fully engaged in Park.
3. Turn lock nut "X" until it touches select rod end while holding select rod horizontal. Tighten lock nut "Y". Move control lever from "P" to "1" again.
4. Make sure that control lever can move smoothly and without sliding noise. Apply grease to contacting areas of selector lever and select rod.

Scheme 3

Pickup (All With Column Shift)

1. Place selector lever in "P" range. Loosen lock nuts. (Scheme 4) Ensure transaxle is in Park. Tighten lock nut "A" until it touches trunnion, pulling selector lever toward "R" range side without pushing button.
2. Back off lock nut "A" 2 turns. Tighten lock nut "B" to 72-96 INCH lbs. (8-11 N.m). Ensure selector lever moves smoothly.

Scheme 4

Pickup (4WD With Floor Shift)

1. Place selector lever in "P" range. Loosen lock nuts. Ensure transmission is engaged in Park.
2. Tighten turn buckle until selector lever moves toward "R" range without pushing button. Back off turn buckle one turn. Tighten lock nuts to 36-48 INCH lbs. (4-6 N.m). Ensure selector moves smoothly.

Scheme 5

Stanza Wagon

1. Remove control cable adjusting nut "A" and loosen "B". (Scheme 6) Place selector lever in "P". Ensure transaxle is in Park.
2. Make sure vehicle does not move. Install adjusting nut "A". Tighten nut "A" and "B" by hand. Tighten adjusting nuts to 72-96 INCH lbs. (8-11 N.m). Ensure selector lever moves smoothly.

Scheme 6

RWD

Kickdown switch is located at top of accelerator pedal post. A "click" should be heard just before accelerator bottoms out when depressed. If not, loosen switch lock nut and adjust.

FWD

1. Loosen double lock nuts on throttle plate side of cable. Move throttle plate to wide open throttle position and hold during adjustment procedure. Move cable sheath toward lock nut bracket to remove all play.
2. Turn lock nut "B" so it just contacts bracket. Turn lock nut "B" specified number of turns AWAY from bracket. (Scheme 7) Pulsar NX and Sentra - 1-1 1/2 turns. Maxima - 3/4-1 1/4 turns. Stanza & Stanza Wagon - 2 3/4-3 1/4 turns.
3. Tighten lock nut "A". Ensure throttle wire stroke "L" is within specified range between full throttle and idle. Refer to the «THROTTLE WIRE STROKE SPECIFICATIONS»(/nissan/300zx/z31-1983-1989/remont/automatic-trans/#servicing-at) table. Road test vehicle and note kickdown point.

THROTTLE WIRE STROKE SPECIFICATIONS

Scheme 7

NEUTRAL SAFETY SWITCH

1. Switch operates back-up lights and prevents starting except in "P" or "N". To adjust, ensure that transmission is in "N" with lever at transmission in vertical position.
2. Remove alignment hole screw at bottom of switch and loosen retaining bolts. Move switch until correct size alignment pin can be inserted in rotor. Tighten retaining bolts and replace alignment hole screw.

NEUTRAL SAFETY SWITCH ALIGNMENT PINS

Scheme 8

SPECIFICATIONS

Note. Transmission component specifications table not available. Refer to specifications in appropriate ADJUSTMENTS subject.

See also:
• THROTTLE WIRE STROKE SPECIFICATIONS