Genuine Mazda Protege Crankshaft Seal

Mazda Protege Crankshaft Seal Parts and Q&A

• Rear Main Seal
  FS01-11-399
  Q: How can the crankshaft seal be installed to prevent oil leaks on Mazda Protege?

  A:

  Crankshaft should be first attached and then main bearing caps boled on and then new seal attached in the retainer and retainer clamped to the block. Close inspection of the seal contact surface on the crankshaft is necessary to ensure there is no scratches or nicks that may destroy the new seal lip and cause leakage of oil; the crankshaft may also be damaged and therefore it will require a new crankshaft or a different one. The retainer can be cleared of the old seal by beating it out of the reverse with a hammer and a punch which must be remembered to support the retainer on wood blocks and how deep the old seal is cut into the bore in order to fit the new seal correctly. The retainer must be clean, and a thick coating of the engine oil must be applied on the outer edge of the new seal, which must be pressed firmly into the bore, otherwise a press cannot be had, the housing and seal may be clamped between two smooth pieces of wood, and pressed firmly into place by a large vise, taking care to evenly distribute the pressure. When last but not least, the seal may be drilled into the retainer with a hammer by setting up a block of wood to spread the force in all directions ensuring the seal is firmly pushed in. The seal lips should be lubricated with clean engine oil or multipurpose grease before sliding the seal/retainer around the crankshaft and bolting it to the block using new gasket and the bolts should be tightened to required torque in stages.