Jeep 4667198 Seal-Front Main CRANKSHAFT

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Do not rotate the camshaft(s) or crankshaft when the timing belt is removed or damage to the engine may occur. Begin by removing the timing belt. Next, detach the crankshaft timing belt sprocket from the crankshaft using a bolt-type gear puller, and then remove the Woodruff key from the crankshaft keyway. To extract the front crankshaft seal, wrap the tip of a small screwdriver with tape and, working from below the right inner fender, carefully pry the seal out of its bore, taking care to avoid damaging the oil pump assembly, crankshaft, and seal bore. Clean and inspect the seal bore and sealing surface on the crankshaft thoroughly; minor imperfections can be addressed with emery cloth, but if a groove is worn in the sealing surface, a new seal may not prevent leaks. Lubricate the new seal with engine oil and, using a hammer and the appropriate size socket, drive the seal into the bore until it is flush with the oil pump housing. Reinstall the Woodruff key and the crankshaft timing belt sprocket with the word FRONT facing outward on the crankshaft. Complete the remaining installation steps in reverse order of removal and tighten the crankshaft pulley bolt to the specified torque. Finally, start the engine and check for oil leaks.

Ensure to tighten the crankshaft pulley bolt to the specified torque.

Clean the crankshaft and seal bore thoroughly, degreasing the areas with a rag soaked in lacquer thinner or acetone.

Position the new seal onto the crankshaft, ensuring that if marked, the words "THIS SIDE OUT" are facing out, toward the rear of the engine.

Stop when the front face is at the proper depth.

Finally, reinstall the timing belt(s) and covers, then run the engine and check for oil leaks.

Position the new seal on the crankshaft with the words "THIS SIDE OUT" facing outward.

Note how the seal is installed; the new one must be installed to the same depth and face the same way.

Installation of the remaining components follows the reverse order of removal.

Clean and inspect the seal bore and sealing surface on the crankshaft. Minor imperfections can be removed with emery cloth, but if a groove is worn in the sealing surface, a new seal may not stop the leak.

Reinstall the remaining components in reverse order of removal and tighten the crankshaft pulley bolt to the specified torque.

Lubricate the lips of the new seal with engine oil or multi-purpose grease.

Lubricate the seal lip with multi-purpose grease and apply a 1 mm wide bead of anaerobic gasket sealant to the engine block mating surface of the seal housing.

Press the oil seal into position with the fabricated tool, stopping as soon as the seal is seated to avoid damage.

The crankshaft rear main oil seal is designed to prevent oil leaks from the rear of the engine block, ensuring proper lubrication of the crankshaft.

Install the retainer and tighten the retainer bolts to the specified torque. The remainder of the installation follows the reverse order of removal.

Ensure the housing is clean and apply a thin coat of engine oil to the outer edge of the new seal.

Apply clean engine oil or multi-purpose grease to the outer edge of the new seal.

Begin by removing the timing belt cover(s) and then the timing belt(s).

To prevent an oil leak, avoid scratching or damaging the crankshaft sealing surface or the bore in the engine block.