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4ac Info

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i was looking for this information for 4 hours "sigh"


finally found it, so for anyone that needs it, here you go :P





Engine specifications are the same from 1984 to 1987 for there respective engines.



Model: 4A-C


Type: 4 cylinder in-line, SOHC

Displacement: 96.8 cu. in. (1587 cc)

Bore and Stroke: 3.2 x 3.0 in. (81.0 x 77.0 mm)

Compression Ratio: 9.0 : 1

Compression Pressure: STD 163 psi @ 250 RPM, LIMIT 128 psi

HP (SAE Net): 70 HP @ 4800 RPM

Torque (SAE Net): 85 Ft./lbs @ 2800 RPM


Valve Timing:


Intake Opens: 18 BTDC

Intake Closes 46 ATDC

Exhaust Opens: 52 BTDC

Exhaust Closes: 12 ATDC


Spark Plug Type: /California /Federal


Nippondenso /W16EXR-U11 /W16EXR-U11




/BPR5EY11 or BPR4EY11


Spark Plug Gap: 0.043 in. (1.1mm)


Firing Order: 1-3-4-2


Ignition Timing: 5 BTDC @ Max. 950 RPM (With vacuum advance off)

**NOTE** M/T and A/T in "N" range


Valve Clearance:


Intake (Hot): 0.008 in. (0.20 mm)

Exhaust (Hot): 0.012 in. (0.30 mm)


Cooling System:


Type: Water Cooled

Radiator: Vertical flow fin and tube

Radiator Cap Pressure: 10.7-14.9 psi (0.75-1.05 kg/sq. cm)

Waterpump: Centifugal v-belt drive

Thermostat Valve Opening: 190 F (88 C)

Capacity: 5.9 qt. (5.6 liter) M/T

With Heater: 5.8 qt. (5.5 liter) A/T


Fuel System:


Type of Carburetor: Downdraft, 2 Barrel

Fuel Pump: Mechanical Diaphragm

Fuel Pressure: 2.5-3.5 psi (0.18-0.25 kg/ sq. cm)

Fuel Filter Type: Paper Filter Element (flow through)

Fuel Tank Capacity: 13.2 gal. (50 liter)

Fuel Grade: USE UNLEADED FUEL ONLY (Research Octane No. 91 Anti Knock

Index 87 or Higher)


Lubrication System:


Type: Mechanical

Oil Pump: Gear Type

Oil Filter Capacity: 0.3 qt.

Recommended Motor Oil: API grade SF or better

Oil Capacity /w Filter: 3.5 qt. (3.3 liter)


Electrical System:


Battery (volts/ amp hours): 12V/50A - hr

Alternator (volts/ amps): 12V/55A

Starter Motor (volts/ kW): 12V/1.0 KW M/T - 12V/1.4 KW A/T

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HP (SAE Net): 70 HP @ 4800 RPM


Power figures are wrong, The power figures range from 57kw (76.38hp) & 67kw (89.78hp) depending where in the world they were sold.

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