ENGINE COMPRESSION
| Application | Specification |
|---|
| Compression Ratio |
| 850 |
| Non-Turbo | 10.5:1 |
| Turbo | 8.5:1 |
| 940 |
| Non-Turbo | 9.8:1 |
| Turbo | 8.7:1 |
| 960 | 10.7:1 |
COMPRESSION SPECIFICATIONS
VALVE CLEARANCE
Note. 850 and 960 models are equipped with hydraulic lifters.
| Application | In. (mm) |
|---|
| Cold |
| When Checking | .010-.018 (.25-.45) |
| When Setting | .014-.016 (.35-.40) |
| Warm |
| When Checking | .012-.020 (.30-.50) |
| When Setting | .016-.018 (.40-.45) |
VALVE CLEARANCE SPECIFICATIONS - 940
IGNITION COIL
| Application | Primary | Secondary |
|---|
| 850 |
| Non-Turbo | .5 | 8400 |
| Turbo | .5-1.5 | 8000-9000 |
| 940 |
| EZ 116K (Bosch) | .6-.9 | 7000-8500 |
| REX-I (Bendix) | .5-.6 | 5000-7000 |
| 960 | .5 | N/A |
IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)
SPARK PLUGS
| Application | Bosch | Champion |
|---|
| 850 |
| Non-Turbo | FR6DC | RC9YC |
| Turbo | N/A | RC7GYC |
| 940 | WR7DC | N/A |
| 960 |
| Normal Driving | FR7DC | RC9YC |
| High-Speed Driving | FR6DC | RC7YC |
| Application | Gap: In. (mm) | Torque: Ft. Lbs. (N.m) |
|---|
| All Models | .028-.032 (.70-.80) | 18 (25) |
SPARK PLUG SPECIFICATIONS
FIRING ORDER
Firing Order & Distributor Rotation - 850. Scheme 1
Scheme 1: Firing Order & Distributor Rotation - 850
Firing Order & Distributor Rotation - 940. Scheme 2
Scheme 2: Firing Order & Distributor Rotation - 940
Firing Order - 960. Scheme 3
Scheme 3: Firing Order - 960
IGNITION TIMING
| Application | (1) Timing |
|---|
| 850 |
| Non-Turbo | 8-12 @ 750-850 |
| Turbo | 4-8 @ 750-850 |
| 940 |
| Non-Turbo |
| EZ 116K (Bosch) | 12 @ 725-825 |
| REX-I (Bendix) | 10 @ 725-825 |
| Turbo | 12 @ 750 |
| 960 | 5 @ 750 |
| (1) Ignition timing is computer-controlled and is not adjustable. |
| (1) | Ignition timing is computer-controlled and is not adjustable. |
IGNITION TIMING (Degrees BTDC @ RPM)
FUEL PUMP
| Application | Psi (kg/cm( 2 ) | Vol. In 30 Sec: Pts. (L) |
|---|
| All Models | 43.5 (3.06) | 1.1 (.52) |
| (1) At 12 volts, 68°F (20°C), with engine off and fuel pump relay by-passed. |
| (1) | At 12 volts, 68°F (20°C), with engine off and fuel pump relay by-passed. |
FUEL PUMP PERFORMANCE (1)
IDLE SPEED & MIXTURE
| Application | Idle RPM | (2) % CO Level |
|---|
| 850 | (3) 850 | (3) .2-.8 |
| 940 |
| Non-Turbo | 775 | .4-.8 |
| Turbo | 750 | .4-.8 |
| 960 | 750 | .4-.8 |
| (1) Idle speed and CO level can only be checked, not adjusted. (2) Measured upstream of catalytic converter with oxygen sensor connected. (3) With cooling fan off. |
| (1) | Idle speed and CO level can only be checked, not adjusted. |
| (2) | Measured upstream of catalytic converter with oxygen sensor connected. |
IDLE SPEED & CO LEVEL (1)
FAST IDLE
Note. All idle speeds are controlled by electronic control unit. Specifications on fast idle are not available from manufacturer.
THROTTLE SWITCH
See ADJUSTMENTS article for switch adjustments.
