TEST RESULTS

Carry out an initial visual inspection to locate the component that is leaking or the area of the leak.

If the visual inspection was not enough, wash the engine, dry it and spread talc on the parts involved: carry out a road test to identify the leak.

Move on to Step 1

1. Leak from the exhaust cap.

2. Leak from the sump.

3. Leak from the oil filter.

4. Leak from the engine gaskets.

1. Move on to Step 1.

2. Move on to Step 2.

3. Move on to Step 3.

4. Move on to Step 4.

Check the condition and seal of the oil drain plug.

Move on to Step 2

1. Drain plug not intact.

2. Drain plug tightening not correct.

1. Replace the drain plug

 Op. 1020A30 ENGINE OIL DRAIN PLUG - REPLACE

2. Restore the correct drain plug tightening.

Check:

- the condition of the oil sump;

- the sealant seal between the sump and cylinder block/crankcase;

- that the sump retaining bolts are correctly tightened.

Move on to Step 3

1. Oil sump damaged or distorted.

2. Sealant seal not effective.

3. Incorrect tightening of retaining bolts.

1. Replace the sump

 Op. 1020A20 CRANKCASE SUMP- R.R. CLEAN SEALING SURFACES AND APPLY SEALANT

2. Restore the correct sealant seal.

3. Restore the correct tightening of the retaining bolts.

Check:

- the condition of the oil filter;

- the seal and condition of the seal;

- the condition of the water-oil heat exchanger

Move on to Step 4

1. Oil filter damaged or distorted.

2. Oil leaks from the heat exchanger.

1. Replace the oil filter and gasket

 Op. 1084C10 ENGINE OIL HEAT EXCHANGER - R + R

2. Replace the heat exchanger

Access the oil seal rings on the crankshaft and camshafts.

Check the seal of these gaskets.

End of diagnosis

1. Crankshaft gaskets damaged.

2. Camshaft gaskets damaged

1. Replace the affected gaskets.

2. Replace the affected gaskets.