Does Replacing the Crankshaft Oil Seal Require Timing Alignment?

[VanAlejandro]

Replacing the crankshaft oil seal does not require timing alignment. Introduction to Crankshaft Oil Seal: Oil seals are commonly referred to as general sealing components, simply put, they seal lubricating oil. They are mechanical elements used to seal grease, isolating the parts requiring lubrication in the transmission system from the output parts, preventing lubricating oil from leaking. They are located at the middle wheel position at the bottom of the engine. Common Materials for Oil Seals: Nitrile rubber, fluororubber, silicone rubber, acrylic rubber, polyurethane, polytetrafluoroethylene, etc. What role does the oil seal play? It prevents sand, dust, moisture, etc., from invading the bearing from the outside; it restricts the leakage of lubricating oil from the bearing. The oil seal is used to seal grease (oil is the most common liquid substance in the transmission system).