Diesel Engine
- Remove air cleaner. Install air crossover screened cover (J-26996-1).
- Disconnect electrical wire from fuel solenoid terminal of injection pump.
- Disconnect glow plug wires. Remove all glow plugs.
- Use compression tester (J-26999) to test individual cylinders.
NOTE:
Compression should build up quickly and evenly to proper level while rotating engine past 6 compression strokes. If piston rings are worn or cracked, compression will read low on first stroke, will rise on each stroke thereafter, but will not reach normal level.
COMPRESSION SPECIFICATIONS
| Application | Specifications | ||||
|---|---|---|---|---|---|
| Compression Ratio | |||||
| 350" V8 | |||||
| Seville | 8.5 | ||||
| All Others | 8.0 | ||||
| 350" V8 Diesel | 22.5 | ||||
| 425" V8 | 8.2 | ||||
| 500" V8 | 8.5 | ||||
| Recommended Fuel | |||||
| Diesel | (1) Diesel 2-D | ||||
| Gasoline | Unleaded (87 AKI Minimum) | ||||
| Compression Pressure | |||||
| 350" V8 | 100 psi (Minimum) | ||||
| 350" V8 Diesel | 275 psi (Minimum) | ||||
| 425" V8 | 140-165 psi | ||||
| 500" V8 | 145-165 psi | ||||
| Maximum Variation Between Cylinders | 30% | ||||
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NOTE:
Before making a compression test or cranking engine using a remote starting switch, disconnect ignition switch "BATT" feed wire at distributor.