INTRODUCTION
Use this article to quickly find specifications related to servicing and on-vehicle adjustments. This article may be used for quick reference when you are familiar with proper adjustment procedures and only need a specification.
CAPACITIES
| Application | Amp Hr. Rating |
|---|---|
| 2.8L V6 | 63 |
BATTERY SPECIFICATIONS
| Application | Quantity |
|---|---|
| Crankcase (Includes Filter) | 5.3 Qts. (5.0L) |
| Cooling System (Includes Heater) | 11.6 Qts. (11.0L) |
| A/T (Dexron II) | 3.2 Qts. (3.0L) |
| A/T Final Drive (G 50 Synthetic SAE 75W 90) | 1.1 Qts. (1.0L) |
| M/T (G 50 Synthetic SAE 75W 90) | 2.5 Qts. (2.35L) |
| Differential (G 50 Synthetic SAE 75W 90) | .8 Qt. (.75L) |
FLUID CAPACITIES
SERVICE INTERVALS & SPECIFICATIONS
| Component | Interval (Miles) |
|---|---|
| Air Filter | 30,000 |
| Cam Timing Belt | 60,000 |
| Coolant | 30,000 |
| Fuel Filter | 15,000 |
| Oil & Filter | 15,000 |
| Spark Plugs | 30,000 |
REPLACEMENT INTERVALS
BELT ADJUSTMENT
- Using a crayon or other marker, mark direction of travel before removing belt (if reusing belt). If reinstalled in opposite direction, damage to belt will occur.
- Remove ribbed "V" belt guard. Slacken ribbed "V" belt with 15-mm wrench and hold in place with Holding Mandrel (V.A.G. 3204). Remove ribbed "V" belt. (Scheme 1)
- After ensuring there are no splits, cracks or other damage, install belt in reverse order of removal. Place ribbed "V" belt over drive rollers and idling roller first and onto tensioning roller last. Using a 15-mm wrench, remove holding mandrel and allow tensioning roller to move against belt. Install ribbed "V" belt guard.
Scheme 1
ENGINE COMPRESSION
| Application | Specification | |
|---|---|---|
| Compression Ratio | 10.3:1 | |
| Compression Pressure | ||
| Normal | 156-228 psi (11-16 kg/cm 2 ) | |
| Minimum | 128 psi (9 kg/cm 2 ) | |
| Maximum Variation Between Cylinders | 44 psi (3 kg/cm 2 ) | |
COMPRESSION SPECIFICATIONS
VALVE CLEARANCE
Note. All models are equipped with hydraulic lifters. No adjustments are required.
IGNITION COIL(S)
| Application | Primary | Secondary |
|---|---|---|
| 2.8L | .5-1.2 | 9000-14,000 |
IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)
HIGH TENSION WIRE RESISTANCE
| Application | Ohms | |
|---|---|---|
| Coil Wire | ||
| With Radio | 1200-2800 | |
| Without Radio | 0 | |
| Spark Plug Wire | ||
| With Radio | 4600-7400 | |
| Without Radio | 600-1400 | |
| Spark Plug Connector | 600-1400 | |
| Spark Plug Suppressor | 600-1400 | |
HIGH TENSION WIRE RESISTANCE
SPARK PLUGS
| Application | Bosch | Champion |
|---|---|---|
| 2.8L | F6DTC | C6BYC4 |
SPARK PLUG TYPE
| Application | Gap In. (mm) | Torque Ft. Lbs. (N.m) |
|---|---|---|
| 2.8L | .026-.034 (.7-.9) | 15 (20) |
SPARK PLUG SPECIFICATIONS
FIRING ORDER
Note. For firing order (Scheme 2)
Scheme 2
IGNITION TIMING
Note. Ignition timing, idle speed and idle mixture are controlled by the MFI ECM. Crankshaft reference sensor, engine speed reference sensor, Hall Effect sensor and various other sensors signal MFI ECM, causing ignition at appropriate moment. (Scheme 3)- (Scheme 6).
Scheme 3
Scheme 4
Scheme 5
Scheme 6
Basic Setting
- Lock camshafts at TDC No. 3 cylinder with Timing Fixture (V.A.G. 3243). Locating plates are used to position camshafts. Each locating plate has a large hole and a small hole. When installing timing fixture, ensure the large holes on locating plates face each other. (Scheme 7)
- Lock crankshaft at TDC No. 3 cylinder with Crank Locating Pin (V.A.G. 3242) inserted through threaded hole in block where reference sensor usually is, and into locating notch in crankshaft. (Scheme 8) Fit and tension cam drive belt. Remove timing fixture and locating pin.
Scheme 7
Scheme 8
FUEL PUMP
| Function | Value | |
|---|---|---|
| System (Pump) Pressure | 55-61 psi (3.8-4.2 kg/cm 2 ) | |
| Residual Pressure (1) | ||
| Engine Cold | 32 psi (2.2 kg/cm 2 ) | |
| Engine Hot | 44 psi (3.0 kg/cm 2 ) | |
| Fuel Injector/Injection Rate (2) | 2.9-3.4 oz. (85-100 ml) | |
| Idle Speed | 700-800 RPM | |
| CO Content | 0.3-1.2% Of Volume | |
| (1) After 10 minutes. (2) Per 30 seconds of operation. | ||
| (1) | After 10 minutes. |
| (2) | Per 30 seconds of operation. |
FUEL PUMP PERFORMANCE
INJECTOR RESISTANCE
Injector resistance is 15-17 ohms.
IDLE SPEED & MIXTURE
Idle speed and mixture are controlled by MFI ECM, and are nonadjustable.