X012 ENGINE OIL LEAKS - Fiat - NUOVA 500 - eLearn

312000205 - X012 ENGINE OIL LEAKS

An engine oil leak can be seen with consequent dripping and/or fouling of the engine

0	PRELIMINARY CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
		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.
1	DRAIN PLUG CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the condition and seal of the oil drain plug.	Move on to Step 2	1. Drain plug not intact.2. Exhaust cap tightening not correct.	1. Replace the drain plug Op. 1020A30 ENGINE OIL DRAIN PLUG - REPLACE 2. Restore the correct exhaust cap tightening.
2	OIL SUMP CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check:- the condition of the oil sump;- the sealant seal between the sump and cylinder block/crankcase;- that the sump fixing 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 OIL SUMP - R.R CLEAN SURFACES FOR SEALANT APPLICATION 2. Restore the correct sealant seal.3. Restore the correct tightening of the retaining bolts.
3	OIL FILTER CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	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 sealOp. 1084C10 2. Replace the heat exchanger
4	ENGINE GASKET CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Access the oil seal rings on the crankshaft and camshafts.Check the seal of these gaskets.	End of diagnosis	1. Crankshaft seals damaged.2. Camshaft seals damaged	1.Replace the seals concerned.2.Replace the seals concerned.