Loose connections or cracks in the suction side of the intake pipe and after the air filter can allow debris to be
ingested by the engine causing rapid wear in the cylinders.
Leaks at the intake manifold, unsealed bolt holes or manifold cover gasket can also allow dust and dirt to be ingested into naturally aspirated engines.
Loose connections or cracks in the suction side of the intake pipe and after the air filter on turbocharged engines can allow debris to be ingested into the turbo charger compressor and forced into the engine.
Debris drawn into the air suction side can damage the compressor blades causing an imbalance resulting in
bearing failure.
To verify a bearing failure or damaged compressor, remove the intake and exhaust piping and check for contact. The rotor assembly must rotate freely and should not be damaged. Measurement of axial and radial clearance is described in this Section.
