Technical Data
Ignition Area:
- Spark-plug gap: 1.0-1.1mm on 2.0 & 2.5
- Spark plugs – 2.5: NGK ZFR5F-11 (standard), NGK ZFR6F-11 (for UK & USA)
- Spark plugs – 2.0: NGK BKR5E-11 (standard), NGK BKR6E-11 (for UK & USA)
- Ignition Timing – 2.5V6 – 10 +/- 1 degree; ECU modifies between 6-8o degrees.
- Ignition Timing – 2.0I4 – 12 +/- 1 degree, not ECU modified (no knock sensor)
Cooling System Area:
Coolant Capacity – 2.5V6 – 7.5litres
Coolant Capacity – 2.0I4 – 7.0litres
Thermostat 2.0I4 & 2.5V6 – Initial-opening 80-84oC, full-open 95oC, full-open lift 8.5mm Fan operation temperature 2.0I4 – Approximately 97oC at the radiator cap filler neck
Fan operation temperature 2.5V6 – Approximately 100oC at the radiator cap filler neck
Fan Motor – 2.0I4 – MTX Single Speed, 5.8-7.6Amps, ATX Two Speed, 8.0-14.0Amps; 11.5-17.5Amps
Fan Motor – 2.5V6 – MTX Two Speed, 8.0-14.0Amps & 11.5-17.5Amps, ATX Two Speed, 7.9-13.9Amps & 13.2-19.2Amps
Water (Fan) Thermosensor – 2.0I4 – 91oC 1.70-1.84Kohm; 97oC 1.42-1.53Kohm; 108oC 1.03-1.11Kohm
Water (Fan) Thermosensor – 2.5V6 – 91oC 1.70-1.84Kohm; 97oC 1.42-1.53Kohm; 108oC 1.03-1.11Kohm
Oil System Area
Oil Capacity – 2.5V6 – Engine+Filter 4.0litres
Oil Capacity – 2.0I4 – Engine+Filter 3.5litres
Oil Dipstick L to F mark represents 1-litre
Oil Pressure Specs – 2.5V6 – 28psi @1000rpm, 49-71psi @3000rpm
Oil Pressure Specs – 2.0I4 – 57-71psi @3000rpm
HLA Wear Limit – 0.18mm, replace at 0.15mm (feeler guage between slowly-rotated cam & HLA)
MTX Oil Capacity – 2.7litres
General Specs 2.5V6
Valve Timing – Intake – Open BTDC – 8 degrees, Close ABDC – 50 degrees
Valve Timing – Exhaust – Open BBDC – 54 degrees, Close ATDC – 8 degrees
Bore & Stroke – 84.5mmx74.2mm, 3.33″x2.92″
Spec Compression – 9.2:1; pressure 203psi at 250rpm, min 142psi at 250rpm
Throttle Body – 2.5V6 – 60mm dia
Variable Resonance Induction System, VRIS
| Engine Speed | 0-3250 | 3250-4250 | 4250-6250 | 6250-7500rpm |
|---|---|---|---|---|
| Shutter #1 | Closed | Open | Open | Closed |
| Shutter #2 | Closed | Closed | Open | Closed |
General Specs 2.0I4
Valve Timing – Intake – Open BTDC – 8 degrees, Close ABDC – 47 degrees
Valve Timing – Exhaust – Open BBDC – 50 degrees, Close ATDC – 5 degrees
Bore & Stroke – 83mmx92mm, 3.27″x3.62″
Spec Compression – 9.0:1; pressure 171psi at 300rpm, min 119psi at 300rpm
Throttle Body – 2.0I4 – 55mm dia
Fuel System Area:
Fuel Pressure Regulator – 2.0I4 – 37-36psi
Fuel Pressure Regulator – 2.5V6 – 41psi
Max Pump Pressure – 2.5V6 – 72-92psi
Max Pump Pressure – 2.0I4 – 64-85psi
Injector Resistance – 2.0I4 – 12-16 Ohms at 20oC
Injector Resistance – 2.5V6 – 12-16 Ohms at 20oC
Power Steering Area:
Power Steering Fluid – ATF Dexron-II or M-III
Steering Wheel Free Play – 0-30mm
Front Brakes
Master Cylinder i.d. 23.81mm, 0.937″
Front Disc – Cylinder Bore – 57.15mm, 2.250″
Front Disc – Pad Dimensions – 4800mm^2 & 10mm thick
Front Disc – Dimensions – 258mm x 24mm (Probe/MX6 can be 264mm)
Rear Disc – Cylinder Bore – 30.16mm, 1.187″
Rear Disc – Pad Dimensions – 2900mm^2 & 8mm thick
Rear Disc – Dimensions – 261mm x 10mm
Power Brake Unit – MTX – 239mm, 9.4″; ATX – 188+215mm, 7.4+8.5″
Brake Pedal Lever ratio – 4.1, Max Stroke 125mm, 4.92″
Tyre Rotation – 6200 miles
Wheel Imbalance – max at wheel edge on 15″ wheel – 9 grammes
Manual Gearbox Ratios
| 94 UK 626V6-2.5 | 94 UK 626I4-2.0 | 94 UK 626I4-1.8 | |
|---|---|---|---|
| 1st – 3.307 | 1st – 3.307 | 1st – 3.307 | |
| 2nd – 1.833 | 2nd – 1.833 | 2nd – 1.833 | |
| 3rd – 1.310 | 3rd – 1.233 | 3rd – 1.233 | |
| 4th – 1.030 | 4th – 0.914 | 4th – 0.914 | |
| 5th – 0.795 | 5th – 0.717 | 5th – 0.717 | |
| Rev – 3.166 | Rev – 3.166 | Rev – 3.166 | |
| Fin – 4.105 | Fin – 4.105 | Fin – 3.850 |
In reality the 1993 cars are probably different in final drive & cam profile, as 1993 V6s had a tendency to put too much torque bias to the left-front. Even later cars still exhibit this tendency, torque steer should be neglidgible however.
Alignment
Front Wheel Alignment – Toe-in – 3mm +/-3mm
Front Wheel Alignment – Camber – MX6: -0o42′ +/- 45′; 626: -0o36′ +/- 45′
Front Wheel Alignment – Caster – MX6: 3o01′ +/- 45′; 626: 2o37′ +/- 45′
Front Left/Right differences – Camber: 30′ max, Caster: 45′ max
Rear Wheel Alignment – Toe-in – 3mm +/-3mm
Rear Wheel Alignment – Thrust Angle – 0o +/- 0.1o
