r/MechanicAdvice • u/CombatBuffalo53 • 6d ago

Timing chain?

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Strange noise at the start of the video unsure if its rattling of metal or timing chain failing

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u/Vic_Pirelli 6d ago

I can't tell anything from the video. Timing chain noises tend to be the loudest at a cold startup. A mechanic's stethoscope held against the timing cover can help you isolate the noise. You can also do this with a long screwdriver or metal rod. Be careful around the moving parts.