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Limits of taper or out-of-round on any crankshaft journals should be held to 0.025 mm (0.001 in.). CRANKSHAFT DESCRIPTION The crankshaft (Fig. 23) is of a cast nodular steel splayed type design, with five main bearing journal- OPERATION The crankshaft transfers force generated by com- bustion within the cylinder bores to the flywheel or REMOVAL NOTE: This procedure can be done in vehicle. How- (1) If crankshaft is to be removed while engine is in vehicle remove the transmission. Refer to 21 - (2) Remove the oil pan (Refer to 9 - ENGINE/LU- BRICATION/OIL PAN - REMOVAL). (3) Remove the oil pump from the rear main bear- ing cap (Refer to 9 - ENGINE/LUBRICATION/OIL (4) Remove the vibration damper (Refer to 9 - ENGINE/ENGINE BLOCK/VIBRATION DAMPER - (5) Remove the timing chain cover (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN (6) Identify rod bearing caps before removal. Remove rod bearing caps with bearings. CAUTION: Support crankshaft before removing main bearing caps. failure to do so will allow the (7) Using a suitable jack, support the crankshaft. Remove main bearing caps and bearings one at a (9) Lower the crankshaft out of the block. seals. (11) Remove and discard the front crankshaft oil seal. INSTALLATION (1) Clean Gasket Maker residue and sealant from the cylinder block and rear cap mating surface. Do t Gasket Maker and the installation of rear cap. (2) Lightly oil the new upper seal lips with engine oil. (3) Install the new upper rear bearing oil seal with the white paint facing towards the rear of the engine. (4) Position the crankshaft into the cylinder block. oil. (6) Install the new lower rear bearing oil seal into the bearing cap with the white paint facing towards (7) Apply 5 mm (0.20 in) drop of Mopar t Gasket Maker, or equivalent, on each side of the rear main (8) To align the bearing cap, use cap slot, align- ment dowel and cap bolts. DO NOT remove excess (9) Clean and oil all cap bolts. Install all main bearing caps. Install all cap bolts and alternately (10) Install oil pump (Refer to 9 - ENGINE/LU- BRICATION/OIL PUMP - INSTALLATION). (11) Install the timing chain cover (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN Fig. 23 Crankshaft with Journal Size Identification 9 - 240 ENGINE 5.9L AN CONNECTING ROD BEARINGS (Continued) |