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mineral spirits or kerosene. Inspect cylinder walls (3) Honing should be done by moving the hone up and down fast enough to get a cross-hatch pattern. (4) A controlled hone motor speed between 200–300 RPM is necessary to obtain the proper cross- (5) After honing, it is necessary that the block be cleaned again to remove all traces of abrasive. CAUTION: Ensure all abrasives are removed from CLEANING Clean cylinder block thoroughly using a suitable cleaning solvent. INSPECTION ENGINE BLOCK (1) Clean cylinder block thoroughly and check all core hole plugs for evidence of leaking. (2) If new core plugs are to be installed, (Refer to 9 - ENGINE - STANDARD PROCEDURE - ENGINE (3) Examine block and cylinder bores for cracks or fractures. (4) Check block deck surfaces for flatness. Deck surface must be within service limit of 0.1 mm (0.004 CYLINDER BORE NOTE: The cylinder bores should be measured at The cylinder walls should be checked for out-of- round and taper with Tool C119 or equivalent (Fig. Measure the cylinder bore at three levels in direc- tions A and B (Fig. 59). Top measurement should be Fig. 58 Cylinder Bore Cross-Hatch Pattern 1 - CROSS-HATCH PATTERN Fig. 59 Checking Cylinder Bore Size 9 - 116 ENGINE 2.4L DOHC PT ENGINE BLOCK (Continued) |