Cleaning the gasket faces

Fig 1: Identifying Camshaft And Cylinder Block

Courtesy of VOLVO CARS OF NORTH AMERICA.

Clean the gasket faces for: 

• the manifold. Check that the studs are tightened
• the coolant bypass channel
• the thermostat housing
• the intake manifold
• the cylinder block
• camshaft cover.

Blow the oil ducts clean.