Toyota 90311-38034 Seal, Oil

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Clean the bore and coat the outer edge of the new seal with engine oil or multi-purpose grease.

The timing belt, upper idler pulley, and camshaft sprocket need to be removed.

To replace the crankshaft oil seal, start by removing the timing belt and crankshaft timing belt sprocket. Cut away the seal lip with a razor knife and carefully pry the seal out of the engine using a screwdriver or seal removal tool. Clean the bore in the engine and coat the outer edge of the new seal with engine oil or multi-purpose grease. Apply the same grease to the seal lip. 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. Make sure it's installed squarely and to the same depth as the original. Check the seal after installation to ensure the spring is in place. Reinstall the crankshaft timing sprocket and timing belt, being careful not to scratch the crankshaft sensor portion of the sprocket. Run the engine and check for oil leaks at the front seal. To replace the camshaft oil seals, remove the timing belt and camshaft sprocket(s). Remove the bolts and detach the rear timing belt cover. Carefully pry the seal out of the bore using a screwdriver wrapped with tape to avoid scratching the bore or damaging the camshaft. Clean the bore and coat the outer edge of the new seal with engine oil or multi-purpose grease. Apply grease to the seal lip. 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. Ensure it's installed squarely and to the same depth as the original. Reinstall the rear timing belt cover and tighten the bolts. Reinstall the camshaft sprocket(s) and timing belt. Run the engine and check for oil leaks at the camshaft seal.