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engine knock!!!

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Old 10-20-2009, 05:11 PM
  #11  
mustang90242
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Originally Posted by Smokin04
Need more details...

Car year?
Engine?
Base timing if a 5.0?
Does the knock happen @ WOT at 2200 rpm or just cruising?
1999 cobra
4.6 all stock
idk if the timing is off.....
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Old 10-21-2009, 05:02 AM
  #12  
Smokin04
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What does the ticking sound like? Does is sound like a chain rattling? Or does it sound like something else? Does it only happen for a few hundred rpm or does it continue all the way to high rpm? Does it happen at part throttle or wide open?
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Old 10-21-2009, 11:19 AM
  #13  
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Originally Posted by Smokin04
What does the ticking sound like? Does is sound like a chain rattling? Or does it sound like something else? Does it only happen for a few hundred rpm or does it continue all the way to high rpm? Does it happen at part throttle or wide open?
yes kinda like like a chain rattling

it starts at 2200 rpm and it continues from there

part thorttle
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Old 10-21-2009, 11:31 AM
  #14  
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Ok...you're detonating. DO NOT KEEP ON IT!!!

What gas are you running? You have too much spark advance down low or not enough octane. I recommend buying 3 or 4 gallons of race fuel and adding it (or Torco at a minimum) until you can figure out what's wrong.

Do you have a Predator or Hand Held tuner?

How long has this been happening?
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Old 10-21-2009, 11:46 AM
  #15  
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Originally Posted by Smokin04
Ok...you're detonating. DO NOT KEEP ON IT!!!

What gas are you running? You have too much spark advance down low or not enough octane. I recommend buying 3 or 4 gallons of race fuel and adding it (or Torco at a minimum) until you can figure out what's wrong.

Do you have a Predator or Hand Held tuner?

How long has this been happening?
91 octane
i dont have any tuner
for a month
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Old 10-21-2009, 11:58 AM
  #16  
Timspony
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What oil you running in the car?
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Old 10-21-2009, 12:01 PM
  #17  
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Originally Posted by timspony
What oil you running in the car?
5w-20 valvoline fully synthetic
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Old 10-21-2009, 12:04 PM
  #18  
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Originally Posted by Smokin04
Ok...you're detonating. DO NOT KEEP ON IT!!!

What gas are you running? You have too much spark advance down low or not enough octane. I recommend buying 3 or 4 gallons of race fuel and adding it (or Torco at a minimum) until you can figure out what's wrong.

Do you have a Predator or Hand Held tuner?

How long has this been happening?
how do i fix the spark advance? any ideas
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Old 10-22-2009, 08:17 AM
  #19  
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You're going to have to take it to a tuner or buy a hand held and retard timing...but the only real way it through a tune from a tuner. UNLESS!!! You have a Steeda timing adjuster...it looks like a blue handle thingy on the front of your crank shaft (balancer)...retard timing on that if so equipped.
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Old 10-22-2009, 04:41 PM
  #20  
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Originally Posted by Smokin04
You're going to have to take it to a tuner or buy a hand held and retard timing...but the only real way it through a tune from a tuner. UNLESS!!! You have a Steeda timing adjuster...it looks like a blue handle thingy on the front of your crank shaft (balancer)...retard timing on that if so equipped.
ok

i took it to a mechanic and he said i have to replace the crankshaft

i dont really trust him....could that be possible ?
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