Originally Posted by nate wesselink
i have all the tools i need for it i just need a diagram and instructions to do it
I would do a little investigative work before going out and buying bearings. Drain the oil and drop the sump. Take a bigend cap that and inspect the surfaces for gauling. If it looks Ok get some plastigage and cramp the cap assembly back on to see what oil clearance you actually have. Similarly drop the centremain bearing (ideally the one with the thrust plate or washers) and test with plastigage ...... crank bearings tend to wear very slowly compared to the bigend bearings, so chances are they should be satisfactory. Make sure you measure the thrust dimensions (a dial guage on the end of the crank is the best way, but may be hard to apply with an insitu engine).
If tolerances aren't within spec you will need to measure the crankpins for wear, out of round and taper. If the pins aren't within tolerance you will be faced with a dilemna = do you take the crank out and have it reground or do you do a Heath Robinson by replacing the bearings and hoping for the best.
Once you have the bearings in and lubricated (which they should be before you put them in), take the spark plugs out, remove any drive belts associated with the crank and make sure you can spin the engine by hand.
OH and make sure you mark each bearing cap prior to removing so you can reinstall to it's mating journal and orientation.