The Role of Oil Selection The viscosity and quality of the oil play a significant role in the likelihood of a leak. Observe the exact location where the oil begins to weep.
Evo 8 Oil Leak Return Line Fittings: Inspection and Rerouting Solutions
The first step is a thorough cleaning of the engine bay using a degreaser. Switching to a heavier viscosity, such as a 10W-40, can sometimes help maintain film strength at elevated temperatures.
The return line is typically routed through the center of the exhaust manifold, which acts as a heat exchanger. Inspect the seam where the manifold meets the head for any signs of wetness.
Evo 8 Oil Leak Return Line Fittings Inspection and Rerouting
The manifold must be removed, the old gasket scraped away without damaging the aluminum surfaces, and a new high-temperature gasket installed. For a permanent fix, rerouting the oil return line is highly recommended.
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