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SEM965A 7. Remove pistons with connecting rods. I When disassembling piston and connecting rod, remove snap 8. Remove rear oil seal retainer. CAUTION: I When piston rings are not replaced, make sure that piston I When replacing piston rings, if there is no punchmark, SEM842E 9. Loosen bolts in numerical order as shown and remove main I Before removing bearing beam and bearing cap, measure I Bolts should be loosened in two or three steps. SEM454G 10. Remove oil jets. AEM023 Inspection NBEM0027 PISTON AND PISTON PIN CLEARANCE NBEM0027S01 1. Measure inner diameter of piston pin hole “dp”. Standard diameter “dp”: Grade No. 0 21.993 - 21.999 mm (0.8659 - 0.8661 in) Grade No. 1 21.999 - 22.005 mm (0.8661 - 0.8663 in) AEM024 2. Measure outer diameter of piston pin “Dp”. Standard diameter “Dp”: Grade No. 0 21.989 - 21.995 mm (0.8657 - 0.8659 in) Grade No. 1 21.995 - 22.001 mm (0.8659 - 0.8662 in) 3. Calculate interference fit of piston pin to piston. Dp − dp = 0.002 - 0.006 mm (0.0001 - 0.0002 in) If it exceeds the above value, replace piston assembly with pin. GI MA LC EC FE AT TF PD AX SU BR ST RS BT HA SC EL IDX CYLINDER BLOCK Disassembly (Cont’d) EM-63 |