Nissan 13510-0Z400 Seal-Oil CRANKSHAFT Front

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Remove the crankshaft pulley. The seal is usually installed in the front cover and the main way of removing the seal is using a seal removal tool or a large screwdriver; be very delicate all the time otherwise the seal bore or the crankshaft may be damaged. Around the area where the seal connects to its housing, it is advisable not to scratch or gouge the housing or distort the corresponding part of the seal, since this will result into an oil leak. Scrub the bore to remove old seal material and dirt as well as to also remove corrosive materials from the surface. Place the new seal into the bore so the lip is inside the engine, towards the bore axis and apply a drop of oil to the outside of the seal and the inner surface of the lip. Place the bore onto the shaft and drive the seal into the bore with a seal driver or a large socket and tap it with a hammer until it is in the right position against the cover flange, and that the outside diameter of the socket matches that of the seal. Check the condition of the crankshaft pulley and more specifically the area that comes into contact with the oil seal should be grooved if the contact is frequent replace the crankshaft pulley. Apply engine oil on the seal lips and refit the crankshaft pulley with the help of the retaining bolt and tighten the same to the recommended torque. Reversal of the removal process completes the installation process, after which you should start the engine and inspect it for any signs of oil leakage.

Remove the crankshaft pulley. The seal is usually installed in the front cover and the main way of removing the seal is using a seal removal tool or a large screwdriver; be very delicate all the time otherwise the seal bore or the crankshaft may be damaged. Around the area where the seal connects to its housing, it is advisable not to scratch or gouge the housing or distort the corresponding part of the seal, since this will result into an oil leak. Scrub the bore to remove old seal material and dirt as well as to also remove corrosive materials from the surface. Place the new seal into the bore so the lip is inside the engine, towards the bore axis and apply a drop of oil to the outside of the seal and the inner surface of the lip. Place the bore onto the shaft and drive the seal into the bore with a seal driver or a large socket and tap it with a hammer until it is in the right position against the cover flange, and that the outside diameter of the socket matches that of the seal. Check the condition of the crankshaft pulley and more specifically the area that comes into contact with the oil seal should be grooved if the contact is frequent replace the crankshaft pulley. Apply engine oil on the seal lips and refit the crankshaft pulley with the help of the retaining bolt and tighten the same to the recommended torque. Reversal of the removal process completes the installation process, after which you should start the engine and inspect it for any signs of oil leakage.

Carefully drive the new seal into place using a seal driver or a socket slightly smaller than the seal's outside diameter, ensuring it is installed squarely and to the same depth as the original, while checking that the garter spring remains in place.

Install the seal so that its rear edge is flush with the face of the engine block, or up to 0.019 inch recessed.

It is preferable to use a seal installation tool to press the new seal into place.

To remove the crankshaft pulley, carefully pry the seal out of the cover with a seal removal tool or a large screwdriver. Be cautious not to damage the seal bore or the crankshaft.

Remove the crankshaft pulley, timing belt covers, and timing belt.

Remove the transmission.

The first step when installing a one-piece seal for the crankshaft is to install the crankshaft itself and bolt the main bearing caps in place.

Lubricate the seal lips with engine oil.

Clean all old RTV sealant from the rear of the engine and the oil pan using brake system cleaner.

Carefully work the lip onto the seal journal of the crankshaft, taking care not to rush and damage the seal.

Preferably, a seal installation tool should be used to press the new seal into place.

Before installing the new seal, the seal contact surface should be checked carefully for scratches and nicks that could damage the new seal lip and potentially cause oil leaks.

Tap the seal into place using a seal driver to ensure it doesn't become tilted.

It is preferable to use a seal installation tool to press the new seal into place.

Preferably, a seal installation tool should be used to press the new seal into place.

Use a blunt tool, such as a brass punch, to carefully work the edge of the seal evenly into the bore and around the crankshaft.

Unbolt the rear oil seal retainer from the engine block and oil pan.

Install the oil seal by pressing it into position with the seal installation tool. When the seal is bottomed in the housing, don't turn the bolt any more or you'll damage the seal.

Reinstall the crankshaft pulley and tighten the retaining bolt to the specified torque. The remaining steps of the installation are the reverse of the removal process.

Remove the crankshaft pulley bolt, and if needed, have an assistant hold the crankshaft from turning by wedging a screwdriver in the flywheel/driveplate teeth through the access hole.