Genuine 1998 Jeep Wrangler Crankshaft Seal

1998 Jeep Wrangler Crankshaft Seal Parts Questions & Experts Answers

• Q: How is the Crankshaft Seal Installed in a 2.4L Four Cylinder Engine on 1998 Jeep Wrangler?

  A: The one-piece rear Crankshaft Seal is pressed into a bore machined into the rear main bearing cap and engine block. Begin by removing the transmission, and if equipped, take out the clutch components. Next, remove the flywheel or drive plate. Using the chamfered edge on the crankshaft, carefully pry out the old seal with a 3/16-inch flat blade screwdriver, ensuring not to nick or scratch the crankshaft or seal bore. To prevent an oil leak after installing the new seal, avoid damaging the crankshaft sealing surface or the bore in the engine block. Clean the crankshaft and seal bore thoroughly, degreasing these areas with a rag soaked in lacquer thinner or acetone. If there are any burrs or scratches on the crankshaft chamfer edge, sand them with 400-grit sandpaper. Do not lubricate the lip or outer diameter of the new seal; it must be installed as it comes from the manufacturer. Position the new seal onto the crankshaft, and using an appropriate size driver and pilot tool, gently and gradually drive the seal into the cylinder block until it is flush with the outer surface. Ensure the words "THIS SIDE OUT" face out toward the rear of the engine; if the seal is unmarked, the seal lip must face in. Be cautious not to drive the seal past flush, as this will cause an oil leak. The remainder of the installation follows the reverse order of removal.