BMW Timing Chain Slide Rail - BBR Automotive 11317592850

Product Information

This BBR Automotive timing chain guide is a genuine-quality replacement designed to help guide and support the timing chain within your BMW engine. Over time, guide rails can wear from prolonged use, leading to increased engine noise and potential timing issues. Unlike timing belts, timing chains are long-lasting components, but the plastic-lined guides are wear items that should be inspected or replaced during high-mileage service.

Timing chain guides ensure that the chain maintains proper alignment as it travels over the crankshaft and camshaft sprockets. In combination with the chain tensioner, they minimize vibration, prevent misalignment, and maintain accurate valve timing.

Signs of a failing timing chain guide include:

• Rattling or Clattering Noise: Often heard at startup or idle due to chain slack hitting engine internals.
• Engine Misfires: Caused by incorrect valve timing when the chain slips from a misaligned or worn guide.
• Stalling or Hard Starting: Severe guide wear can cause the chain to jump teeth, making it difficult to start or causing the engine to stall.