1. Check the exhaust manifold for damage and cracking. | 2. The metal ruler and a feeler gauge, measure the flatness of the mating surfaces of the exhaust manifold. - Deviation from the flatness of the mating surfaces of the exhaust manifold: 0.15 mm
- Maximum permitted flatness mating surfaces of the exhaust manifold: 0.30 mm
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3. Check the exhaust manifold gasket on the absence of delamination and damage. |