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

72 misfiring, help please

Old 09-30-2005, 11:46 PM
  #21  
6mustang6
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Default RE: 72 misfiring, help please

When you check the compression you must remove all of the spark plugs. you should have anywhere between 110-160 i think, with a allowance of 10 psi between cylinders.
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Old 09-30-2005, 11:52 PM
  #22  
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Default RE: 72 misfiring, help please

okey dokey, will check in tomorrow and let you all know what they are, I will write them down for Soaring....he's making me post em on here.


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Old 10-01-2005, 12:03 AM
  #23  
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Default RE: 72 misfiring, help please

thats good. Do you have a shop manual yet? It'll tell you the compression tolerances.
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Old 10-01-2005, 12:06 AM
  #24  
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Default RE: 72 misfiring, help please

Yep got one...it has been a lot of help when we can decipher the "shopspeak"
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Old 10-01-2005, 12:10 AM
  #25  
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Default RE: 72 misfiring, help please

Yeah, they are a great thing to have.
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Old 10-01-2005, 12:15 AM
  #26  
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Default RE: 72 misfiring, help please

CRAP, I get those pops.
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Old 10-01-2005, 12:19 AM
  #27  
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Default RE: 72 misfiring, help please

It's ok, i do too. We just must learn to live with it.
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Old 10-01-2005, 12:28 AM
  #28  
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Default RE: 72 misfiring, help please

Does this mean i need new heads Soon or will my car still operate fine? Tommorrow im gonna post a video so you can hear my glasspacks. I realized that we never really floored it. when we rev it is pretty loud.
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Old 10-01-2005, 12:33 AM
  #29  
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Default RE: 72 misfiring, help please

No, it's fine to drive. CAnt wait to hear it.
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Old 10-01-2005, 12:42 AM
  #30  
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Default RE: 72 misfiring, help please

Hey, the number on the glass packs is 0823 i looked but cant find any matches. The exhaust does have a nice rumble to it, so i think ill keep them and just throw some headers on there.
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