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There are 3 standard diameter sizes, marked "1", "2" and "3" The mark is stamped on the piston 1 Using a micrometer, measure the piston diameter at a position that is 6 7 mm (0 264 in ) Fig. 274: Identifying Piston Oil Clearance Dimension Standard piston diameter PISTON SPECIFICATION 2 Measure the cylinder bore diameter in the thrust directions 3 Subtract the piston diameter measurement from the cylinder bore diameter measurement Standard oil clearance: 0.045 to 0.066 mm (0.00178 to 0.00259 in.) Maximum oil clearance: 0.13 mm (0.00512 in.) If the oil clearance is greater than the maximum, replace all 8 pistons and rebore all 8 HINT: When replacing the cylinder block, use a piston with the same number mark as the cylinder Number Mark Specified Condition Mark 1 93 942 to 93 952 mm (3 6985 to 3 6989 in ) Mark 2 93 952 to 93 960 mm (3 6989 to 3 6992 in ) Mark 3 93 960 to 93 970 mm (3 6992 to 3 6996 in )
2009 Toyota Tundra 2009 ENGINE Engine Mechanical (2UZ-FE) - Tundra
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