Is it possible to replace some from the oil pan? Please dont say i need a new engine etc. im only concerned about the bearings.
I do not consider that is true
Lucky for you your engine is transverse, meaning it's turned sideways. Removing the oil pan is real easy as is replacing the rod bearings. There might not be a pan gasket, just a bead of sealant, but a gasket is readily available. Have fun, although it's a bit messy.
Easily changed from the bottom, but if they are bad-worn, chances are that the crankshaft is too.
Yes, although doing it right is tedious. Remove the spark plugs so you can move the pistons by hand. Keep track of which rod and which orientation the caps come from. The new bearings really should be plastigaged (green Plastigage, available cheap at auto parts stores) to verify the clearance. The first source has a good description of how to use it - be sure not to rotate the crank with the Plastigage in place or the piece of Plastigage will be ruined. Remember the bearings will look wrong until they are clamped in place - they will look like they are too large. If the crank journals are shiny you should have no problem; if they have black deposits remove them with 600 grit sandpaper shoeshine rag fashion. Take your time; get it right. Before rotating the crank always make sure the connecting rods are out of the way so they don't get jammed. When in doubt, push them up. !!!Never let any pistons come down so far a ring could pop out of the cylinder bore!!! I don't think it is likely but it would be awful. Get pre-lube and put it on the bearings before final assembly. When it is done, let the engine idle at least 15 minutes before driving, and drive it at modest speeds an hour or so before taking it on the freeway.
