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ROD - PISTON & CONNECTING DESCRIPTION CAUTION: Do not use a metal stamp to mark connecting rods as damage may result, instead use ink or a The pistons are made of a high strength aluminum alloy. The anodized top ring groove and crown has been STANDARD PROCEDURE - PISTON FITTING 1. To correctly select the proper size piston, a cylinder bore gauge, capable of reading in 0.003 mm ( .0001 in.) INCREMENTS is required. If a bore gauge is not available, do not use an inside micrometer. 2. Measure the inside diameter of the cylinder bore at a point 38.0 mm (1.5 inches) below top of bore. Start per- pendicular (across or at 90 degrees) to the axis of the crankshaft at point A and then take an additional bore 3. The coated pistons will be serviced with the piston pin and connecting rod pre-assembled. 4. The coating material is applied to the piston after the final piston machining process. Measuring the 5. Piston installation into the cylinder bore requires slightly more pressure than that required for non- 9 - 962 ENGINE - 4.7L SERVICE INFORMATION ND |