Compression Pressure
With engine at normal operating temperature, remove all glow plugs. Install special tool (Toyota 09992-00021) in glow plug mounting hole and attach a compression gauge. Disconnect wire at fuel cut solenoid. Crank engine at 250 RPM and measure compression.
CAUTION:
Make sure glow plug wiring does not ground.
NOTE:
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
| Min. Compression Pressure | 284 psi (20 kg/cm2 ) |
| Max. Variation Between Cylinders | 71 psi (5 kg/cm2 ) |