Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

engine knock sound

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Old 07-17-2009, 03:28 PM
  #11  
KMatch
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Originally Posted by scootchu
That's the sound I get when I just get on the throttle, usually in third or four gear when my timing isn't dialed in and I thought it was detonation or pinging. It seems to happen just at that point and more throttle and it goes away.
I know that you and I seem to have similar situations with our 302's.
Fattening up the carb a bit on the throttle pump or a swap of power valves might be a place to tinker. Taking away timing takes away power. If you have a lean condition which can cause detonation, start there before killing horsepower. Excessive engine temps play a part as well. A large part detonation is timing, but there are other smaller players as well.
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Old 07-18-2009, 02:23 AM
  #12  
hammerit
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I had what I thought was lifter noise......turned out to be loose spark plugs. Its a long shot but worth checking
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Old 07-18-2009, 05:15 AM
  #13  
kalli
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i have no problems really. just wanted to know what it sounds like. to be on the safe side. now i know and i'm happy out
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