Toyota 90311-35013 Seal, Type T Oil

If the rear Crankshaft Seal is leaking, it can be replaced without removing the engine from the vehicle, but the transmission and flywheel/driveplate must be removed to access the seal, which can be replaced with the seal retainer installed or removed. Although it's quicker to replace the seal with the retainer installed, this method increases the risk of damaging the seal bore or the new seal. Begin by removing the transmission, then for manual transmissions, remove the clutch. Next, remove the driveplate/flywheel. If the retainer is installed, cut the Crankshaft Seal lip with a knife, pry it out with a screwdriver (taping the tip to prevent damage), and then tape a screwdriver to protect the crankshaft while prying out the old seal. Coat the outside diameter and seal lips of the new seal with multi-purpose grease, and install it using a seal driver or a piece of large diameter pipe. If the retainer is removed, detach it from the block after removing the bolts that attach the oil pan flange, and gently tap it with a soft-face hammer if it's stuck. Remove all old gasket material from the block and retainer, wipe the sealing surfaces with a cloth saturated with acetone or lacquer thinner, and check for nicks or damage. Support the retainer between two blocks of wood and use a screwdriver to knock the old seal out, then drive the new seal into place. Coat the outside diameter of the new Crankshaft Seal with multi-purpose grease, and use a large diameter pipe or block of wood to drive it into the retainer. Before installing the retainer on the block, apply a thin layer of RIV sealant to the block side of the gasket and the sealing surface of the retainer, position the gasket, and install the retainer over the dowel pins. Install the bolts and tighten them in a criss-cross pattern in three steps to the specified torque, completing the installation in reverse order of removal.

The bolts should be tightened a little at a time until they are all at the torque specified in Part A.

Drive the new seal into the retainer with a block of wood or a section of pipe slightly smaller in diameter than the outside diameter of the seal, ensuring that you do not cock the seal in the retainer bore.

Clean the bore in the housing and coat the outer edge of the new seal with engine oil or multi-purpose grease. Apply moly-base grease to the seal lip.

Ensure that the retainer is clean, then apply a thin coat of engine oil to the outer edge of the new seal. The seal must be pressed squarely into the housing bore, so hammering it into place is not recommended. If a press is not available, sandwich the housing and seal between two smooth pieces of wood and press the seal into place with the jaws of a large vise. The wood pieces must be thick enough to distribute the force evenly around the entire circumference of the seal. Work slowly to ensure the seal enters the bore squarely.