If so, then sounds more like piston ping from timing being too advanced.
hi
i have a 2007 Daihatsu Terios and the engine is making this sound when i start it:
https://soundcloud.com/user-459901552/voice-002
and after 15 to 30minutes the sound almost fades completely away, it's a gasoline engine,
any idea what this could be? i have asked different mechanics and they told me different things: the pistons, the bearings, crankshaft...

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