72913 - W05 WHITE EXHAUST FUMES

A high level of pale-coloured exhaust fumes is noted.
STEPOPERATIONS TO BE CARRIED OUTTEST RESULTS
0PRELIMINARY CHECKSALL OKPROBLEMS ENCOUNTEREDACTION
First, check:

  • that there is no water or other liquids in the fuel tank
  • engine oil level
Move on to Step 1. Presence of dirt in the fuel tank1. Clean the fuel tank
2. Level too high2. Top up the engine oil level
1CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Connect the Examiner diagnostic equipment to the diagnostic connector and check the following at the engine management control unit:in errors ambient

  • that there are no faults
Move on to Step Error detected in the control unitContinue following the instructions for the diagnostic equipment
2BLOW-BY CIRCUIT CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the condition of the blow-by gas intake circuit, in particular check that there are no obstructions in the separator or in the pipesMove on to Step 1. Fault in the pipe from separator to intake1. Restore circuit to working order: change the pipe if necessary
2. Fault in the separator (tappet cover)2. Restore circuit to working order: if necessary, replace the tappet cover
3CYLINDER COMPRESSION CHECKALL OKPROBLEMS ENCOUNTEREDACTION
2.4 20 V,2.4 20 VCarry out the cylinder compression checkMove on to Step Cylinder compression insufficientMove on to Step
3CYLINDER COMPRESSION CHECKALL OKPROBLEMS ENCOUNTEREDACTION
2.0 TB,2.4 JTD 10VCarry out the cylinder compression checkMove on to Step Cylinder compression insufficientMove on to Step
4CHECK THE CAUSE OF THE INSUFFICIENT COMPRESSIONALL OKPROBLEMS ENCOUNTEREDACTION
2.4 20 V,2.4 20 VR.R. cylinder head:

  • Check condition of cylinders/piston rings
  • the seal of the valve oil seals
Move on to Step 1. Cylinder/ring wear outside tolerances1. Restore correct operating clearances
2. Valve oil seals insufficient2. Replace the oil seals, if necessary, overhaul the head
4CHECK THE CAUSE OF THE INSUFFICIENT COMPRESSIONALL OKPROBLEMS ENCOUNTEREDACTION
2.0 TB,2.4 JTD 10VR.R. cylinder head:

  • Check condition of cylinders/piston rings
  • the seal of the valve oil seals
Move on to Step 1. Cylinder/ring wear outside tolerances1. Restore correct operating clearances
2. Valve oil seals insufficient2. Replace the oil seals, if necessary, overhaul the head
5TURBOCHARGER SEAL CHECKALL OKPROBLEMS ENCOUNTEREDACTION
2.0 TB,2.4 JTD 10VCheck:

  • that there are no engine oil leaks from the turbocharger impeller shaft
  • that the turbocharger impeller shaft clearance is not too large
Move on to Step 1. Leaks1. Change the turbocharger    See in Op. 1064A10 TURBOCHARGER - R.R.
2. Clearance too large2. Change the turbocharger    See in Op. 1064A10 TURBOCHARGER - R.R.
6CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer present