- Open the oil filler cap and check the sealing gasket for porosity and damage.
- Cylinder head cover gasket.
- The sealing gasket of the cylinder head.
- Oil filter sealing gasket.
- Drain plug screw (sealing ring).
- Oil pan sealing gasket.
- Oil level and pressure sensor.
- The junction between the engine and gearbox (sealing gasket on the flywheel or drive shaft).
Since oil usually spreads over the engine surface when there is a leak, it is difficult to determine the source of the leak at first glance. When searching for a leak, it is advisable to proceed as follows:
Wash the engine. Spray the engine with a commercially available cold cleaner and after a short time, spray with water. Pre-cover the ignition coils and generator with plastic film.
Sprinkle chalk or talc on the outside of the joints and seals on the engine.
Check the oil level and top up if necessary.
Conduct a test drive. Since the oil liquefies when the engine is hot and therefore comes out faster at the leak site, the test drive should be carried out over a distance of about 30 km at high speed.
Then inspect the engine with a lamp, locate the leak and fix the leak.
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