Toyota 90311-42003 Seal

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This procedure cannot be done with the transaxle still in the vehicle. The seal can also be removed or installed without dropping the oil pan or removing the seal retainer this method is however not preferred because the seal lips are however considerably stiff and may end up wrongly installed or damaged. If you decide to continue, take a screwdriver to remove the old seal, apply moly-base grease on the crankshaft journal as well as the lip of the new seal, and finally insert the new seal into place being very careful not to rush the process since it can harm the seal. There is a suggested method indicating that the oil pan as well as the seal retainer should be taken out. When the oil pan is out, take off the seal retainer and scrape off all the previous gasket's layers. Place the seal and retainer assembly on pieces of wood on a workbench and then put the blade of the screwdriver inside the back side of the seal and push forward to force it out. Push the new seal and the last part of the locomotive into the retainer ring with a wooden block or section of pipe; ensure it does not sit cocked in the retainer bore. Grease the width of the crankshaft seal journal and the inside edge of the new seal with moly-base grease and put a new gasket on the engine block. Cautiously and gradually fit the seal onto the crankshaft with the help of a cylindrical instrument, and put and tighten the retainer bolts to the suggested torque, taking care that the lower part of the retainer's sealing flange does not protrude below the oil pan rail of the block. The further steps are carried out in a reverse sequential order with respect to the removal steps.

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.

The seal contact surface on the crankshaft should be checked very carefully for scratches and nicks that could damage the new seal lip and cause oil leaks. If the crankshaft is damaged, the only alternative is to use a new or different crankshaft.

Remove the timing belt and the crankshaft sprocket.

The retainer nuts/screws should be tightened a little at a time until they are all snug, and then they should be tightened to the specified torque.

The first step is to remove the transmission. For vehicles with a manual transmission, refer to Chapter 7A; for automatic transmissions, refer to Chapter 7B.