Take out and swap the crankshaft by removing the engine assembly and the transaxle from it, then mount the engine on an engine stand. Then remove the filter,
Oil Pan and oil pick-up tube and continue by taking off the
Timing Chain cover, timing chain and sprockets. After that, take out the rear oil seal and retainer from the crankshaft and rotate it to bring the connecting rod cap within reach. Mark the spots where the connecting rod cap should go with a marker or scribe and then very carefully remove each cap from its bearing to protect the crankshaft bearings. Discard the original main bearing cross bolts and washers. When you reassemble the engine, use new bolt and washer assemblies. Lift off the main bearing cap bolts and caps before you remove the crankshaft from within the engine block. Check the crankshaft journals for significant wear, signs of tapering and scoring, make sure the taper and roundness fall within limits and ensure the journal diameter is never ground more than 0.305 mm (0.012 inch) below standard, not to include the 3 main main-bearing thrust face or any nicking of the crank pin and bearing fillets. Once ready, polish the irregular edges of the crankshaft oil holes and clean each passage so that the final polish of nodular cast iron crankshafts goes the same direction as the engine's rotation. Lubricate the crankshaft main bearing halves with engine oil, set them into the engine block, line up the crankshaft and carry out the fitting of the main bearings. Check the main cap bolts for stretching, change out any damaged bolts and attach the main bearing caps and bolts tightening them to 41 Nm (30 ft. lbs.). Tighten and install the cross bolt and washer assemblies to 61 Nm (45 ft. lbs.) on the 3.8L engine. After that, place and secure the connecting rod and the bearing caps on the crankshaft, install the crankshaft rear oil seal, the crankshaft sprocket and then the timing chain and camshaft sprocket. Install the oil tube cover, oil tower housing, oil pan, lower in the transaxle and finally install the whole engine to the car.