Subaru 2002 Impreza Service Manual page 165

CYLINDER BLOCK
Mechanical
7. Cylinder Block
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The cylinder block is made of aluminum die casting. Its open-deck design provides it with such
advantageous features as relatively small weight, high rigidity and excellent cooling efficiency.
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The cylinder liners are made of cast iron. They are dry type which means their outer surfaces
are entirely in contact with the cylinder block.
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The cylinder block supports the crankshaft at its five journals. The journal supporting portions
are designed such that sufficient stiffness and quiet operation are ensured.
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The oil pump is located in the front center of the cylinder block and the engine coolant pump
is located at the front of the left-cylinder bank. At the rear of the right-cylinder bank is an oil separa-
tor which removes oil mist contained in blow-by gas.
ME-9