Oldsmobile 10224877 Engine Crankshaft

The crankshaft and main bearings ought not to be removed except when the engine has been removed from the car, and the engine should initially be dismantled. It is advisable that each of the five main bearing caps should be labeled to show where they belong in the engine block; if this is done, indentations as would be done with the connecting rods and caps should be made. After loosening the main bearing caps they should each be removed from the crankshaft with their corresponding bearing and should be laid on another work bench numbered as per the position of the bearing caps on the engine. The crankshaft can then be slowly pulled out with the use of lifters so as not to wreck the engine block. The two halve of the rear main bearing oil seal has to be detached, The crank shaft main bearings together with the cylinder block and main bearing caps should be withdrawn in such a manner that they will not be mixed since they have their own positions. Last, the crankshaft gear at the front must be removed which is best to be done with a puller intended for this job.