| STEP | OPERATIONS TO BE CARRIED OUT | TEST RESULTS |
|---|
| 0 | PRELIMINARY CHECKS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Carry out a preliminary visual inspection of the cooling system to check that there are no coolant leaks | Move on to Step | Presence of leaks | Continue following the instructions in table X010 Continue following the instructions in the table X10 ENGINE COOLANT LEAKS |
| 1 | COOLING SYSTEM LEAKAGE TEST | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Connect the test equipment replacing the expansion tank cap, pressurize the system and check that the pressure is maintained at the correct value and there are no leaks | Move on to Step | 1. Pressure incorrect without leaks | Move on to Step |
| 2. Pressure incorrect with leaks | 2. Continue following the instructions in table X010 Continue following the instructions in the table X10 ENGINE COOLANT LEAKS |
| 2 | CYLINDER HEAD CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Remove the head.Check:- Cylinder head surface planarity correct
- Cylinder head support surface on cylinder block planarity correct;
| Move on to Step | 1. Cylinder head plane defective | 1. Regrind the cylinder head plane |
| 2. Cylinder block plane defective | 2. Regring the cylinder block plane |
| 3. Planes correct, head gasket faulty | 3. Change the head gasket |
| 3 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that the fault is no longer present | | | |