Maintenance: Diagnosis Nissan 370Z I

ENGINE COOLANT : Inspection

LEVEL

Scheme 9

1. Check if the reservoir tank engine coolant level is within the "MIN" to "MAX" when the engine is cool.
2. Adjust the engine coolant level if necessary.
3. Check that the reservoir tank cap is tightened.

LEAKAGE

Scheme 10

1. To check for leakage, apply pressure to the cooling system with the radiator cap tester and radiator cap tester adapter (commercial service tool) (A). Testing pressure : Refer to " «RADIATOR»(ref-402632-S13811369172011053100000) ". WARNING: Never remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine coolant escaping from water outlet (front). CAUTION: Higher test pressure than specified may cause radiator damage. NOTE: In a case that engine coolant decreases, replenish radiator with engine coolant.
2. If anything is found, repair or replace damaged parts.

RADIATOR : Inspection

Check radiator for mud or clogging. If necessary, clean radiator as follows

1. Be careful not to bend or damage radiator fins.
2. When radiator is cleaned without removal, remove all surrounding parts such as radiator cooling fan assembly and horns. Then tape harness and connectors to prevent water from entering.

1. Apply water by hose to the back side of the radiator core vertically downward.
2. Apply water again to all radiator core surfaces once per minute.
3. Stop washing if any stains no longer flow out from radiator.
4. Blow air into the back side of radiator core vertically downward. Use compressed air lower than 490 kPa (5 kg/cm 2 , 71 psi) and keep distance more than 30 cm (11.8 in).
5. Blow air again into all the radiator core surfaces once per minute until no water sprays out.

FUEL LINES : Inspection

Inspect fuel lines, fuel filler cap and fuel tank for improper attachment, leakage, cracks, damage, loose connections, chafing or deterioration.

Scheme 11

If necessary, repair or replace damaged parts.

OIL FILTER : Inspection

INSPECTION AFTER INSTALLATION

1. Check the engine oil level. Refer to " «INSPECTION»(ref-402631-S03888474112011053100000) ".
2. Start the engine, and check there is no leakage of engine oil.
3. Stop the engine and wait for 10 minutes.
4. Check the engine oil level, and adjust the level. Refer to " «INSPECTION»(ref-402631-S03888474112011053100000) ".

SPARK PLUG : Inspection

INSPECTION AFTER REMOVAL

Use the standard type spark plug for normal condition.

Spark plug (Standard type) : Refer to " SPARK PLUG ".

Scheme 12

Scheme 13

EVAP VAPOR LINES : Inspection

1. Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections, chafing and deterioration. Refer to " «INSPECTION»(ref-402633-S23377384732011053100000) ".
2. Inspect fuel tank filler cap vacuum relief valve for clogging, sticking, etc. Refer to " «COMPONENT INSPECTION»(ref-402633-S22274555082011053100000) ".

EXHAUST SYSTEM : Inspection

Check exhaust pipes, muffler, and mounting for improper attachment, leakage, cracks, damage or deterioration.

Scheme 14

1. If anything is found, repair or replace damaged parts.

GEAR OIL : Inspection

OIL LEAKAGE

Make sure that gear oil is not leaking from transmission or around it.

OIL LEVEL

Scheme 15

1. Remove filler plug (1) and gasket from transmission case.
2. Check the oil level from filler plug mounting hole as shown in the figure. CAUTION: Never start engine while checking oil level.
3. Set a gasket on filler plug and then install it to transmission case. CAUTION: Never reuse gasket.
4. Tighten filler plug to the specified torque. Refer to " «WITHOUT S-MODE : EXPLODED VIEW»(ref-518789-S38096191102011053100000) " (Without S-MODE) or " «WITH S-MODE : EXPLODED VIEW»(ref-518789-S04207654532011053100000) " (With S-MODE).

CLUTCH FLUID : Inspection

FLUID LEAKAGE

1. Check clutch line (tubes and hoses) for cracks, deterioration or other damage. Replace any damaged parts.
2. Check for fluid leakage by fully depressing clutch pedal while engine is running. CAUTION: If leakage occurs around joints, retighten or, if necessary, replace damaged parts.

FLUID LEVEL

Scheme 16

1. Check that the fluid level in the reservoir tank is within the specified range (MAX - MIN lines).
2. Visually check for any fluid leakage around the reservoir tank.
3. Check the clutch system for any leakage if the fluid level is extremely low (lower than MIN).

REAR PROPELLER SHAFT : Inspection

NOISE

Scheme 17

1. Check the propeller shaft tube surface for dents or cracks. If damaged, replace propeller shaft assembly.
2. Check that there is clearance between the tube end and yoke flange. If no clearance is found, replace the propeller shaft.
3. If there are cracks, peeling, or any other breakage on the seal (yoke and tube joint) replace the propeller shaft assembly.

VIBRATION

If vibration is present at high speed, inspect propeller shaft runout first.

Scheme 18

Scheme 19

1. With a dial indicator, measure propeller shaft runout at runout measuring points by rotating final drive companion flange with hands. Propeller shaft runout : Refer to " «PROPELLER SHAFT RUNOUT»(ref-402640-S11716917482011053100000) ". Propeller shaft runout measuring point (Point "arrow"). Standard M/T A : 340 mm (13.39 in) B : 610 mm (24.02 in) C : 340 mm (13.39 in) A/T A : 340 mm (13.39 in) B : 580 mm (22.83 in) C : 340 mm (13.39 in)
2. If runout still exceeds specifications, separate propeller shaft at final drive companion flange; then change the phase between companion flange and propeller shaft by the one bolt hole at a time and install propeller shaft.
3. Check runout again. If runout still exceeds specifications, replace propeller shaft assembly.
4. Check the vibration by driving vehicle.

REAR DIFFERENTIAL GEAR OIL: R200 : Inspection

OIL LEAKAGE

Make sure that oil is not leaking from final drive assembly or around it.

OIL LEVEL

Scheme 20

1. Remove filler plug (1) and check oil level from filler plug mounting hole as shown in the figure. CAUTION: Never start engine while checking oil level.
2. Set a gasket on filler plug (1) and install it on final drive assembly. Refer to " «EXPLODED VIEW»(ref-402640-S39871416952011053100000) ". CAUTION: Never reuse gasket.

Scheme 21

1. Stop the engine.
2. Remove drain plug (1) and drain gear oil.
3. Set a gasket on drain plug (1) and install it to final drive assembly and tighten to the specified torque. Refer to " «EXPLODED VIEW»(ref-402640-S39871416952011053100000) ". CAUTION: Never reuse gasket.

REAR DIFFERENTIAL GEAR OIL: R200V : Inspection

OIL LEAKAGE

Make sure that oil is not leaking from final drive assembly or around it.

OIL LEVEL

Scheme 22

1. Remove filler plug (1) and check oil level from filler plug mounting hole as shown in the figure. CAUTION: Never start engine while checking oil level.
2. Set a gasket on filler plug (1) and install it on final drive assembly. Refer to " «EXPLODED VIEW»(ref-402640-S38867793602011053100000) ". CAUTION: Never reuse gasket.

Scheme 23

1. Stop the engine.
2. Remove drain plug (1) and drain gear oil.
3. Set a gasket on drain plug (1) and install it to final drive assembly and tighten to the specified torque. Refer to " «EXPLODED VIEW»(ref-402640-S38867793602011053100000) ". CAUTION: Never reuse gasket.

DISC BRAKE : Inspection

DISC ROTOR

Check condition, wear, and damage.

CALIPER

Scheme 24

1. Check for leakage.

BRAKE PAD

Scheme 25

1. Check for wear or damage.

STEERING GEAR AND LINKAGE : Inspection

STEERING GEAR

Scheme 26

1. Check gear housing and boots for looseness, damage and grease leakage.
2. Check connection with steering column for looseness.

STEERING LINKAGE

Check ball joint, dust cover and other component parts for looseness, wear, damage and grease leakage.

POWER STEERING FLUID AND LINES : Inspection

Check fluid level in reservoir tank with engine off.

Use "HOT" range at fluid temperatures of 50 to 80°C (122 to 176°F) or "COLD" range at fluid temperatures of 0 to 30°C (32 to 86°F).

Scheme 27

Scheme 28

AXLE AND SUSPENSION PARTS : Inspection

Check front and rear axle and suspension parts for excessive play, cracks, wear or other damage.

Scheme 29

Scheme 30

1. Shake each wheel to check for excessive play.
2. Check wheel bearings for smooth operation.
3. Check axle and suspension nuts and bolts for looseness.
4. Check strut (shock absorber) for oil leakage or other damage.
5. Check suspension ball joint for grease leakage and ball joint dust cover for cracks or other damage.

DRIVE SHAFT : Inspection

Check boot and drive shaft for cracks, wear, damage and grease leakage.

Scheme 31

SEAT BELT, BUCKLES, RETRACTORS, ANCHORS AND ADJUSTERS : Inspection

For seat belt illustration. Refer to " SEAT BELT RETRACTOR : EXPLODED VIEW ".

For details, refer to " SEAT BELT RETRACTOR : INSPECTION " in Seat Belt Information.

1. Check anchors for loose mounting
2. Check belts for damage
3. Check retractor for smooth operation
4. Check function of buckles and tongues when buckled and released