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Datsun Sports Technical Data
1965  SP310  Specifications

Just about every technical specification you will ever need for the 1965 two seater Datsun Fairlady 1500 Sports.

Scroll down or click on the section you are interested in.
Body Engine  Ignition System   Fuel System   Lubrication System  BatteryCooling System  Alternator  Voltage Regulator   Starter  Clutch Transmission  Propeller Shaft  Final Drive  Steering System  Suspension  Braking System  Wheel Alignment   Frame

BODY
Vehicle Length - 3953 mm (155.6in.)
Vehicle Width - 1495 mm (58.9in.)
Vehicle Height - 1275 mm (50.2in.)
Interior Length - 750 mm
Interior Width - 1145 mm
Interior Height - 990 mm
Front Tread - 1213 mm (47.8in.)
Rear Tread - 1198 mm (47.1in.)
Wheel Base - 2280mm (89.8in.)
Min. Clearance - 160 mm (7.1in.)
Floor Height - 289 mm
Overhang to Front End - 620 mm
Overhang to Rear End - 883 mm (34.8in.)
Wheel size - 4J x 13 inch
Tyre Size - 5.60-13-4P
Vehicle Weight - 905 kg (1991lb.)
Height of Centre of Gravity - 460
Seating Capacity - 3 Persons
Maximum Speed - 155 km/h (96 mph)
Grade Ability - 0.46 = sin0
Min. Turning Radius - 4.9 m (16.08 ft.)

ENGINE
Model - G 
Manufacturer - Nissan
Classification - Gasoline
Construction - Cast Iron Block and Cast Iron Head
Cooling system - Water forced circulation
No. of cyl. and arrangement - 4 in line
Cycle - 4
No. of Main Bearings - 3
Combustion chamber - Wedge type
Valve arrangement - Overhead
Bore x Stroke - 80 x 74mm
Displacement - 1.488 litre
Compression ratio - 9.0 to 1
Comp. pressure - 12.7kg/cm2 @ 320rpm (180.6 lb in2)
Max. power - 85bhp @ 5600 rpm
Max. torque - 12.7m-kg @ 4400 (103 ft.lb. @ 4000)
Engine idle speed - 600 rpm
Lenght x Width x Height - 595 x 650 x 621mm
Weight - 155 kg  (341.7 lb.)
Firing order - 1-3-4-2
Piston material - Aluminium Alloy
Number of rings - 2 compression, 1 oil
Valve timing - intake open 20deg. BTDC
                   - intake close 56deg. ATDC
                   - exhaust open 58deg. BTDC
                   - exhaust close 18deg. ATDC
Valve clearance - intake 0.43mm (0.0169in.)
                        - exhaust 0.43mm (0.0169in.)
Valve head diameter - intake - 42mm (1.57in.)
                               - exhaust - 32mm (1.26in.)
Valve stem diameter - intake & exhaust
                                  - 8.7mm (0.343in.)
Valve length - intake & exhaust
                                  - 109mm (4.3in.)
Valve lift - 8.5mm (0.323in.)
Valve seat angle - intake & exhaust - 45deg.
Valve face angle - intake & exhaust - 44deg.30'
Push rod length - 196.6-197.4mm (7.74-7.77in.)
Push rod stem diameter - 7.1mm
Rocker shaft diameter 
                                - 19.97-20.0mm (0.786-0.787in.)
Rocker arm bore diameter 
                             - 20.02-20.04mm (0.7881-0.789in.)
Rocker arm to rocker shaft clearence 
                              - 0.02-0.054mm (0.0008-0.0021in.)
Lever ratio - 1.46:1
Connecting rod centre distance - 144mm
Connecting rod bearing length - 24.1-23.9mm (0.9488-0.9409in.)
Connecting rod bearing thickness 
                          - 1.5-1.508mm (0.0591-0.0594in.)
Crankshaft journal diameter 
                         - 55.0-55.013mm (2.1653-2.1658in.)
Crankshaft free end play 
                         - 0.05-0.15mm (0.002-0.006in.)
Wear limit of free end play - 0.2-0.3mm (0.008-0.012in.)
Main bearing thickness 
                         - 1.827-1.835mm (0.072-0.0722in.)
Main bearing clearence 
                         - 0.023-0.52mm (0.001-0.002in.)
Piston diameter
      - oversize 1 - 79.975-79.966mm
      - oversize 2 - 79.985-79.976mm
      - oversize 3 - 79.995-79.986mm
      - oversize 4 - 80.005-79.996mm
      - oversize 5 - 80,015-80.006mm
Ring groove width - oil ring - 4.015-4.04mm (0.158-0.159 in.)
                        - compression rings - 2.03-2.055mm (0.08-0.0809in
Piston to bore clearence 
                          - 0.025-0.045mm (0.0010-0.0018in.)
Piston pin diameter 
                          - 21.987-22.0mm (0.8656-0.8661in.)
Piston pin hole offset - 1.05-0.96mm
Piston pin length - 73mm (2.874in.)
Piston pin to connecting rod bushing clearence 
                          - tight - 0.001mm (0.0004in.)
                          - loose - 0.018mm (0.0007in.)
Cylinder bore out-of-round tollerance 
                          - <0.02mm (<0.0008in.)
Cylinder head surface flatness - <0.1mm (<0.004in.)

IGNITION SYSTEM
Starting method - magnetic starting system
Ignition method - battery coil type
Ignition timing - 16deg. BTDC at 600rpm
Firing order - 1 - 3 - 4 - 2
Ignition coil - Hitachi C14-50 or
                   - Hanshin HN-12F
Distributor - Hitachi D407-02
Ignition timing advance system - automatic advance 
      via centrifical weights and vacuum timing control
Advance starting speed - 400 rpm
Rotating direction - left
Points gap - 0.45-0.55mm (0.0177-0.0217in.)
Dwell angle - Hitachi - 50-54 deg.
                  - Mitsubishi - 56-61 deg.
Contact arm spring tension - 0.5-0.65 kg (1.1-1.43lb.)
Condenser capacity - 0.20-0.24 uF
Spark plug - Nihon Tokushu Togyo (NGK) B-6
                  - Hitachi EL-45
Spark plug size - screw diameter x reach 
                   - 14 x 19mm (0.551 x 0.75 in.)
Spark plug gap - 0.7 - 0.8 mm (0.027 - 0.031 in.)
Spark plug torque - 1.5-2.0kg/m (11.0-15.0 ft/lb.)

FUEL SYSTEM
Carburetor - Hitachi HJB38W-1
Type - variable venturi, side draught (SU style)
Throttle bore - 38 mm (1.496 in.)
Air cleaner - paper type, Tsuchiya Seisakusho brand
Fuel pump - diaphragm type
Fuel tank capacity - 43 litre (11.36 US gal.)

LUBRICATING SYSTEM
Method - forced pressure type
Oil pump type - gear type
Oil filter - full flow type
Oil pan capacity - 3.1 litre
Oil pressure measured while hot at 550rpm
                              - 1.0 kg/cm2 (14.22 lb/in2) 
Oil pressure measured while hot at 2000rpm 
                              - 3-4kg/cm2 (42.6-56.8lb/in.2)
Gear side clearence - 0.04-0.11mm (0.0016-0.0043in.)
Gear backlash - 0.25-3.0mm (0.01-0.012in.)

COOLING SYSTEM
System type - water cooling closed type
Radiator - Maccord closed  type
Type - Nihon Radiator
System capacity - 6.5 litre (2.11 US gal.)
Water pump - centrifugal type
Thermostat - wax pellet type
Thermostat opening temperature 
                                 - 72 deg.C (161.6 deg.F)
Thermostat valve lift 
                   - 9.5mm at 95 deg.C (0.374in. at 203 deg.F)

BATTERY
Type - 12 volt , 40 AH
Battery manufacturers - Yuasa , Furukawa , GS .
Polarity - positive earth

GENERATOR
Type - Mitsubishi AC300/12AR
Generating method - alternator
Voltage - 12 volt
Capacity - 30 amp.
Pulley ratio - 1:1.7

VOLTAGE REGULATOR
Type - Mitsubishi RL-A1
Load adjust voltage - 14-15 volts
Constant voltage relay - 0.8-1.0mm
Pilot lamp relay - 0.8-1.2mm (0.315-0.472in.)

STARTER
Type - Hitachi S114-71
Power - 12 volt  1.4 hp
Binding torque - 1.14kg/m
Pinion gear - number of teeth - 9
Brush length - 14mm (0.55in.)
Amendment limit - 0.2mm (0.008in.)

CLUTCH
Type - single dry disc hydraulic operation
Number of plates - 2 (facing)
Outer diameter x inner diameter x thickness 
                  - 203 x 146 x 3.2 mm (8 x 5.7 x 0.125 in.)
Total friction area - 312.3mm (48.4in.)
Clutch pedal free travel - 12-20mm (0.6-0.79in.)
Clutch pedal height - 160mm (6.3in.)
Release lever or diaphragm spring height from flywheel 
        face - 52mm (2.05in.)
Release lever run out - 0.03mm (0.001in.)
Disc assembly thickness 
                       - free - 8.45mm (0.333in.)
                       - compressed - 7.15mm (0.282in.)

TRANSMISSION
Type - 4 forward, 1 reverse. 
           Synchromesh on 2nd, 3rd and 4th.
Operating method - floor type
Ratios - 1st - 3.515
            - 2nd - 2.14
            - 3rd - 1.328
            - 4th - 1.000 
            - reverse - 4.597
Number of teeth - main shaft - main drive gear - 21
                                           - 3rd gear - 25
                                           - 2nd gear - 31
                                           - low gear - 38
                  - counter shaft - counter driven gear - 29
                                           - 3rd gear - 26
                                           - 2nd gear - 20
                                           - low gear - 11
                                           - reverse gear - 13
                      - reverse idler gear - 17

PROPELLER SHAFT
Length x outer diameter x inner diameter
          920 x 63.5 x 60.3 mm
Universal joint - Spicer type

FINAL DRIVE
Type of gear - hypoid
Gear ratio - 3.889
Housing type - banjo
Differential gear oil capacity - 0.93 litre (0.25 US gal.)
Type and number of gears 
                         - straight bevel pinion - 2 of each

STEERING SYSTEM
Type - cam and lever
Gear ratio - 14.8
Steering box oil capacity - 0.25 litre (0.07 US gal.)
Steering angle in - 36deg.10'  -  out - 28deg.20'
Steering wheel diameter - 400 mm (15.75 in.)

BRAKING SYSTEM
Front brakes - drum brakes operated by two cylinders
Front brake pad dimensions 
       - 40 x 4.5 x 215 mm (1.87 x 0.66 x 2.125 in.)
Front brake total braking area - 351cm2 (54.4 in.2)
Diameter of front drum - 228.6 mm (9.0 in.)
Front cylinder inner diameter - 25.4mm
Rear brakes - drum brakes with one leading and one 
                       trailing shoe
Rear brake shoe dimensions 
                   - 40 x 4.5 x 215 mm (1.57 x 0.18 x 8.46 in.)
Rear brake total braking area - 351cm2 (54.4 in.2)
Diameter of rear drum - 228.6 mm (9.0 in.)
Rear wheel cylinder inner diameter - 25.4mm
Master cylinder - 22.22mm
Max. fluid pressure - 116 kg/cm2
Park brake - mechanical type on rear wheel

SUSPENSION
Front - independent coil spring
Front coil spring size - 12.7 x 87.5 x 290 mm - 6 turns
Coil spring wire diameter - 12.7mm (0.5in.)
Coil spring diameter - 87.5mm (3.44in.)
Coil spring free length - 290mm (11.42in.)
Spring constant - 9.5kg/mm (522.5lb/in.)
Front shock absorbers - telescopic double acting
Stabilizer - front - torsion bar type
Rear spring size 
  - 1200 x 60 x 6 - 2 (47.2 x 2.4 x 0.24 - 2)

WHEEL ALIGNMENT
These figures quoted are the factory specs for cars fitted with the original cross ply tyres, the figures may not be appropriate for cars fitted with radial tyres.
Caster (unladen) - 1o30'
Camber (unladen) - 1o26'
Toe-in (unladen) - 2.0-3.0mm (0.08-0.12in.)
Inclination angle of axle (unladen) - 6o34'
Turning angle of front wheel - inside - 36o16'
                                           - outside - 28o20'

FRAME
Type - X member 
Section - box type
Height x width x thickness
    Upper 75 x 100 x 1.6 mm
    Lower 25 x 100 x 2.3 mm
 


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