2582499 - S11 ENGINE'BUZZING
There is a constant, loud noise coming from the area of the engine, which is only heard within a certain engine speed range| Results of the tests | ||||
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|---|---|---|---|
| Check the condition and seal of the air supply circuit | Continue to Step 1 | Circuit component damaged | Replace the component involved | |
| 1 | CHECK ON CONDITION OF ENGINE SUPPORTS | All OK | Problems met | Operation |
Check the correct fixing and condition of:
| Continue to Step 2 | Engine supports fixing not correct | Restore the correct fastening Op. 1008A10 | |
| Gearbox side engine support defective | Replace the gearbox side engine support Op. 1008A42 | |||
| Timing side engine support defective | Replace the timing side engine support Op. 1008A46 | |||
| Flexible mounting defective | Replace the flexible mounting | |||
| Reaction rod fixing not correct | Restore the correct fastening Op. 1008A10 | |||
| Reaction rod defective | Replace the reaction rod Op. 1008C10 | |||
| 2 | ENGINE EXHAUST CHECK | All OK | Problems met | Operation |
Check the engine exhaust system and, in particular:
| Continue to Step 3 | Pipe damaged | Replace the pipe | |
| Front silencer damaged | Replace the silencer Op. 1076B30 | |||
| Rear silencer damaged | Replace the silencer Op. 1076B20 | |||
| Gasket worn or damaged | Replace the gasket | |||
| 3 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | Fault persists | Search for the fault starting from another symptom' | ||