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Discussion Starter #1
Hey guys got my car running again
Starts good now however
Ive noticed an intermittent knocking issue
Knock shows up at 2000rpm and disappears at 2500rpm
Its not a loud knock its just a barely noticeable one and its not always constant sometimes it knocks sometimes it doesnt. The rpm also varies, sometimes shows up at 1500rpm sometimes happens at 2000-2500rpm
Thoughts?
 

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Rally Racer
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3,308 Posts
Great news.
A "knock" implies bottom end issues (rod bearings)
A "clacking" is frequently upper end. (Valves)
If it does it while driving and loaded it is likely the sound this motor makes as it is trying to find the most efficient mixture and timing.
Put a tank of premium in and see if it changes anything.
 

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For the three years I had mine, it would tick (knock) cruising through parking lots and what not around 1500rpm it was a very faint noise in my case. Over three years and 30k miles it was never an issue on mine so I just let it go.


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