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(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. 47). Top measurement should be HYDRAULIC LIFTERS (CAM IN DESCRIPTION The hydraulic lifters are a roller type design and are positioned in the cylinder block. The lifters are Lifter alignment is maintained by machined flats on lifter body. Lifters are fitted in pairs into six DIAGNOSIS AND TESTING - HYDRAULIC HYDRAULIC LIFTERS DIAGNOSIS - PRELIMINARY Before disassembling any part of the engine to cor- rect lifter noise, check the engine oil pressure. (Refer Check engine oil level. The oil level in the pan should never be above the MAX mark on dipstick, or OIL LEVEL TOO HIGH If oil level is above the MAX mark on dipstick, it is possible for the connecting rods to dip into the oil Fig. 47 Checking Cylinder Bore Size RS ENGINE 3.3/3.8L 9 - 117 ENGINE BLOCK (Continued) |