Cadillac 12587621 Seal,Crankshaft Rear Oil

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Remove the transmission and the driveplate. Take a screwdriver and pry the Crankshaft Seal from the rear cover without nicking or scratching the seal bore, or crankshaft. Note how far it is recessed into this housing bore prior to removal so that the new seal can be set at this depth. Grab a shop towel and thoroughly clean out all traces of oil and dirt from the block's seal bore. Do not lubricate the seal or touch the sealing lip. Make sure that it is installed properly as it has reverse-lip design on it. The second requirement is that you must see its part number when this seal has been installed. The best way to do this is to use a tool for installing seals to fit in this new one by pushing the tool onto it until it goes back into its place completely. In case, there isn't an appropriate seal installing instrument, one can take a big drift and softly drive this new seal directly into its bore located near rear cover; after which, flush them together so they appear even with one another. Finally, install drive plate and transmission again.

The initial components to be removed are the crankshaft pulley and the vibration damper.

A large drift can be used to carefully drive the new seal squarely into the seal bore and flush with the rear cover.

The driveplate and transmission should be installed.

Lubricate the balancer hub with clean engine oil and reinstall the crankshaft balancer. The remainder of installation is the reverse of removal.

Before reinstalling the vibration damper, lubricate the seal lips with engine oil.

A tool that tightly fits the diameter of the seal can be used with a hammer to drive the seal in.

Carefully pry the oil seal out of the cover with a seal puller or a large screwdriver. Be very careful not to distort the cover or scratch the crankshaft. Wrap the electrician's tape around the tip of the screwdriver to avoid damage to the crankshaft.