Genuine 1987 Audi 4000 Crankshaft Seal

1987 Audi 4000 Crankshaft Seal Parts and Q&A

• Q: How to replace the front and rear Crankshaft Seals for Four-cylinder engines on 1987 Audi 4000?

  A: To replace the front oil seal, first remove the timing belt and crankshaft gear. If an extractor tool is available, the seal can be renewed without removing the housing; otherwise, unbolt and remove the housing along with the relevant sump bolts, and take out the gasket. If the sump gasket is damaged during this process, the sump must be removed to fit a new gasket, which should be done after refitting the housing. Next, drive the old seal out of the housing, then dip the new seal in engine oil and drive it into the housing using a block of wood or a socket until it is flush, ensuring the closed end of the seal faces outwards. After that, fit the housing with a new gasket and tighten the bolts evenly in a diagonal sequence before refitting the crankshaft gear and timing belt. For the rear oil seal, remove the flywheel or driveplate, then follow the same steps for the housing as outlined for the front seal, and finally, refit the flywheel or driveplate.