Kia 4311939020 Seal-Oil

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Raise the vehicle and support it securely on jackstands, then drain the fluid from the transfer case. Remove the rear driveshaft and mark the relative positions of the pinion, nut, and flange. Use a beam- or dial-type inch-pound torque wrench to determine the torque required to rotate the pinion, recording it for later use. Count the number of threads visible between the end of the nut and the end of the pinion shaft, and record that as well. Remove the flange mounting nut, using a chain wrench to hold the pinion flange while loosening the locknut, and then remove the companion flange, which may require a small puller. Pry out the seal with a screwdriver or seal removal tool, taking care not to damage the seal bore. Lubricate the lips of the new seal with multi-purpose grease and tap it evenly into position with a seal installation tool or a large socket, ensuring it enters the housing squarely and is tapped to its full depth. Align the mating marks made before disassembly and install the companion flange, tightening the pinion nut if necessary to draw the flange into place. Carefully tighten the nut until the original number of threads are exposed and the marks are aligned, then measure the torque required to rotate the pinion, tightening the nut in small increments until it matches the previously recorded figure. Finally, install the driveshaft and add the specified lubricant to the transfer case.

Remove the timing belt and camshaft sprockets, then note the installation depth of the seals before prying them out with a tape-wrapped screwdriver, taking care not to scratch the bore or camshaft.

Note how far the seals are installed in the bores before prying them out with a screwdriver wrapped in tape, taking care not to scratch the bore or camshaft.

Use a seal driver or a socket slightly smaller than the seal's outside diameter to drive the new seal into place with a hammer, ensuring it is installed squarely and to the same depth as the original, checking afterward to confirm the spring is in place.

Remove the timing belt and camshaft sprocket(s), then detach the rear timing belt cover. Note the seating depth of the seal before carefully prying it out with a screwdriver, taking care not to damage the bore or camshaft.

Clean the bores and coat the outer edge of the new seals with oil or grease, also applying grease to the lips of the seals.

Use a seal removal tool to carefully pry out the old camshaft seal.

Reinstall the components that were removed for access to the seal and then run the engine to check for oil leaks at the front seal.

Apply clean engine oil to the lip of the new camshaft oil seal and push it in slightly by hand.