Tune-Up Notes
NOTE:
In order to comply with emission standards, specifications shown on engine compartment emission control tune-up decal must be used in all instances.
CAUTION:
When performing tune-up on vehicles equipped with catalytic converters, do not allow or create a condition of engine misfire in more than one cylinder for an extended period of time. Damage to converter may occur due to loading converter with unburned air/fuel mixture.
CAUTION:
On vehicles equipped with catalytic converters, do not add fuel system cleaning agents to fuel tank or carburetor as their use may be detrimental to the catalytic converter.
CAUTION:
Before making a compression test or cranking engine using a remote starting switch, disconnect coil wire from distributor and secure to a good ground.
ENGINE COMPRESSION
| Compression Ratio | ||
| 1-7L | 8.2:1 | |
| 2-2L | 8.5:1 | |
| 2.6L | 8.2:1 | |
| Recommended Fuel | 87 AKI Minimum Unleaded | |
| Compression Pressure | ||
| 1-7L & 2.2L | 100 psi | |
| 2.6L | 150 psi | |
| Maximum Variation Between Cylinders | ||
| 1-7L & 2.2L | 25 psi | |
| 2.6L | 15 psi | |
Check compression pressure with engine warm, spark plugs removed, throttle valve wide open, and at cranking speed.
VALVE CLEARANCE
| Application | Intake (Hot) | Exhaust (Hot) | ||
|---|---|---|---|---|
| 1.7L | .008-.012" | .016-.020" | ||
| 2.2L | Hydraulic | Hydraulic | ||
| 2.6L | (1).006" | .010" | ||
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