BMW 11142249533 Shaft Seal

The crankshaft seal can be replaced after the transmission and flywheel have been removed from the engine. Note the radio security code and disconnect the negative battery cable. Raise and safely support the vehicle. Remove the transmission. On manual transmissions, remove the clutch assembly. Remove the flywheel. Using a suitable seal removal tool, carefully remove the oil seal. Inspect the outer edge of the seal housing for nicks or sharp edges. Carefully chamfer the outer edge of the seal housing to remove any sharp edges or nicks. Coat the sealing lips of the new seal with oil and install the new seal into the end cover housing with a suitable seal installation tool. DO NOT coat the outer sealing surface of the seal with sealant. It should be clean and dry on the 6-cylinder engines. Press the seal in until it is about 0.039-0.079 inches (0.991-2.070mm) deeper than the standard seal which was installed flush with the housing. Install the remaining components in the opposite order from which they were removed. Lower the vehicle and connect the negative battery cable. Check and top off all fluid levels. Once the engine is started, check for any fluid leaks. Start the engine and check that oil pressure is present; if the oil pressure lamp does not extinguish within 5-7 seconds of starting the engine, turn the engine OFF.

In the process of major engine overhaul the crankshaft front and rear oil seals must be replaced. The front seal sits in the timing chain lower cover and can be removed using a hooked instrument once the crankshaft pulley is disconnected or you can in fact remove the timing cover to extract the seal and a tube is adequate as a drift. The rear seal is of the 'nippled' type and is located in a retainer which can only be reached after the removal of the clutch and fly wheel or the drive plate for the automatic transmission.

The crankshaft seal can be replaced after the transmission and flywheel have been removed from the engine. Note the radio security code and disconnect the negative battery cable. Raise and safely support the vehicle. Remove the transmission. On manual transmissions, remove the clutch assembly. Remove the flywheel. Using a suitable seal removal tool, carefully remove the oil seal. Inspect the outer edge of the seal housing for nicks or sharp edges. Carefully chamfer the outer edge of the seal housing to remove any sharp edges or nicks. Coat the sealing lips of the new seal with oil and install the new seal into the end cover housing with a suitable seal installation tool. DO NOT coat the outer sealing surface of the seal with sealant. It should be clean and dry on the 6-cylinder engines. Press the seal in until it is about 0.039-0.079 inches (0.991-2.070mm) deeper than the standard seal which was installed flush with the housing. Install the remaining components in the opposite order from which they were removed. Lower the vehicle and connect the negative battery cable. Check and top off all fluid levels. Once the engine is started, check for any fluid leaks. Start the engine and check that oil pressure is present; if the oil pressure lamp does not extinguish within 5-7 seconds of starting the engine, turn the engine OFF.

Install and torque the seal carrier bolts to specifications, using new bolts at the base and coating the threads with sealing compound.

Use the seal removal tool to make firm contact with the seal and tighten the center screw to draw out the seal.

Withdraw the housing from the engine block, gently tapping it with a soft-faced mallet if necessary, and remove the gasket.

First, remove the crankshaft pulley and damper assembly.

The first step is to raise the vehicle and remove the splash shield underneath the engine.

The belts should be marked with the direction of rotation.

The new seal and installation sleeve are placed against the crankcase opening, ensuring not to kink or damage the sealing lip. BMW special tools are used to fit the crankshaft flange, and a spacer ring is placed over the seal. The seal is pressed in using BMW special tools, and then the special tools and spacer ring are removed.

Use BMW special tool 11 2 390 to guide the installation of the seal over the end of the crankshaft, ensuring the seal carrier and support bushing are pressed straight without tilting, and then carefully remove the installation guide.

Use the BMW special tool 11 2 383.