The crankshaft can be removed only after the engine removal from the vehicle. With the flywheel/driveplate, crankshaft balancer/vibration damper, timing chain/belt, oil pan, oil pump, and piston/connecting rod assemblies removed. Prior to taking out the crankshaft, endplay should be checked by mounting the dial indicator (whose stem is in line with the crankshaft) and touching one of the crank throws. To measure endplay, push the crankshaft back and zero out the dial indicator, then pry forward and record the reading this shows how far it moved. If the endplay is excessive; check the crankshaft thrust surfaces for wear. If they are not worn, the fitment of new main bearings will rectify the endplay. In the absence of a dial indicator, clearance can also be measured by using feeler gauges. The crankshaft is pried or pushed towards the front and the gauges are slipped between the crankshaft and the front face of the thrust main bearing. Examine the main bearing caps for any numerical markings which identify their location. The numbers should increase consecutively from front to rear. If they are not, mark them with number stamping dies or a centre punch. A cast-in arrow on main bearing caps usually indicates the front of the engine. The main bearing cap bolts should be gradually loosened until they can be removed by hand, taking note of the stud bolts. Use a soft-face hammer to tap the caps gently to separate them from the engine block. If needed use the bolts as levers but don't drop the bearing inserts. Lastly, carefully take the crankshaft out of the engine (may need help as it is heavy) and with the bearing inserts, put the caps back in place on the engine block and tighten the bolts finger tight.