Quote:
Originally Posted by codyace
Does it happen repeatably at that RPM?
It could also be rod knock then. I was hoping not, but it is a known 'failure type' on these engines. If someone didn't put the caps back on correctly I can only imagine the bottom end not being properly assembled either.
What you can do, is disconnect one coil pack at a time. Sure it will run rough, but disregard. Rev the engine up and see if the rattle gets quieter or even disappears completely. If so it's time to open that bottom end up and investigate.
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If it's rod knock... it looks to be doing it on more than one piston... If you listen at the end of the video when it stalls (1:50ish) the knock is too fast for only one piston... Or could this be 2 or 3 main bearing? I heard a lot of rod bearing knock as it's a common problem as you said but I don't remember hearing main bearing "knock" or noise.
Anyway, I would not take any chance and I think the only thing for you to do is open it and check everything...