Engine Compression: Notes
NOTE:
Prior to checking compression, be sure batteries are fully charged. When turning engine over during test, 6 "puffs" per cylinder should be used to obtain reading.
| Compression Ratio |
22.5:1 |
| Compression Pressure |
Min. 275 psi |
| Max. Variation Between Cylinders |
30% |
| Recommended Fuel |
Diesel 2-D |
- Remove air cleaner and install air crossover screen cover. Disconnect electrical wire from fuel solenoid terminal on injection pump.
- Disconnect glow plug wiring and remove all glow plugs. Use compression tester (J-26999) to test individual cylinders.
CAUTION:
Do not add oil to cylinders during compression check as extensive engine damage will result.
VALVE CLEARANCE
| Hydraulic Lifters |
Zero Lash |