Hyundai 23111-2G200 Crankshaft

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The crankshaft can be removed only in case when engine is disassembled and pulled out of the car assuming that such components as flywheel, crankshaft pulley, timing belt or chain, oil pan, oil pump body, oil filter and piston/connecting rod assemblies were already removed. Before taking out the crankshaft, it is recommended that the crankshaft end play should be adjusted using a dial gauge placed on the crankshaft. Loosen the centre-main bearing cap and insert the indicator pin between the crankshaft journal and block, zero the indicator, apply forward force on the crankshaft to measure the endplay, which is usually between 0.003 to 0.010 inch. If a dial indicator is not available, then to check for clearance feeler gauges can be used. Turn the main bearing cap bolts in increments and gently shake the caps to remove them; slowly raise the crankshaft, it is recommended to do it in pairs. Before, during and after installation it is recommended that the engine block and crankshaft must be cleaned and checked. Align the block in such a way that the bottom is up, then take off the main bearing caps and clean the bearing surfaces. New upper main bearing inserts have to be installed such that oil holes coincide; lower inserts have to be placed in the caps. Use of Plastigage to determine the oil clearance by comparing the crushed width of the Plastigage against the scale. If clearance is not within specification, then check cleanliness and go for another size of the bearing if need be. On some engines wiping any Plastigage residue off, apply a thin coat of oil to the bearing surfaces before replacing the crankshaft and the main bearing caps. Place new bearings on the crankshaft and then tighten the bolts in the sequence to the torque recommended any pushing on the crankshaft must be done until it is well seated. Last but not least, double check the crankshaft end play and spin the crankshaft by hand, if there is any tightness feel free to fix it before replacing the rear main oil seal.