Now that we have slipped the bearings into the mains, its time to lube the bearings, journals, and finally install the crankshaft. Once the crank is in, you need to look at what areas may need clearanced with a die-grinder or a Dremel and then remove the crank, bag off the block that is not being worked on, use a shop vac to pull the dust and shavings from your work and go to grinding.