Engine Compression
With engine at normal operating temperature, remove all glow plugs. Install compression adapter (SST 09992 00022 for Pickup; SST 09992 00160 for all others) in glow plug mounting hole and attach a compression gauge. Disconnect wire at fuel cut solenoid. Crank engine at 250 RPM and measure compression.
NOTE:
Make sure glow plug wiring does not ground. Count number of revolutions it took for No. 1 cylinder to reach maximum compression reading and use same number of revolutions to determine compression on remaining cylinders.
COMPRESSION SPECIFICATIONS
| Application | Specification |
|---|---|
| Compression Ratio | 22.3:1 |
| Normal Compression Pressure | 455 psi (32 kg/cm2 ) |
| Min. Compression Pressure | 284 psi (20 kg/cm2 ) |
| Max. Variation Between Cylinders | 71 psi (5 kg/cm2 ) |