Hyundai 21521-38054 Pan Assembly-Engine Oil,Upper

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Disconnect the cable from the negative terminal of the battery (see Chapter 5, Section 1).

6. Use a scraper to remove all traces of old sealant from the block and oil pan, and clean the mating surfaces with lacquer thinner or acetone. 7. Ensure the threaded bolt holes in the block are clean. 8. Check the flange of the steel pan section for distortion and flatten it if necessary. 9. Clean the mating surfaces of the engine block and aluminum upper oil pan section, using brake system cleaner to remove all traces of oil. 10. Apply a continuous 1/8-inch bead of RTV sealant to the pan. 11. Install the pan within five minutes and tighten the bolts in the correct sequence to the specified torque. Allow the sealant to set for at least two hours before adding new oil and a new oil filter.

Reinstall the baffle now.

Remove the bolts and detach the upper oil pan. Note the locations of the different size bolts. If the pan is stuck, pry it loose very carefully with a small screwdriver or putty knife, ensuring not to damage the sealing surfaces to prevent oil leaks.