Workshop Manual, TSD3450E, Issue 1 81
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Crankcase and cylinder liners 7
General information
The crankcase is a single unit casting made from high quality cast iron and comprises the crank chamber and
the cylinder block. The crank chamber extends below the centre of the crankshaft to ensure rigidity. The
crankshaft is supported in seven bearings secured by removable caps and fitted with thrust washers at the
centre bearing. The cylinder block contains a row of six cylinders arranged vertically. Wet-type cylinder liners
are used, these are manufactured from cast iron and are induction hardened. A steel spacer plate is fitted to
the top face of the crankcase. This improves the strength and durability when compared with conventional
designs.
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