5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

no compression

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Old 06-29-2008, 09:42 PM
  #11  
mjr46
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Default RE: no compression

so what was the problem?? or none exists now??
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Old 06-30-2008, 05:19 AM
  #12  
tinner7
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Default RE: no compression

Valve was stuck open, so no compression, I ran a new complete compression test on the motor, and all cylinders are within 5-7psi of each other. I am going to finish putting it back together later this week, and see what happens. Since my car is carbed, shouldn't take too long to get it running again and see if my efforts where justified.
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Old 06-30-2008, 06:55 AM
  #13  
AdderMk2
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Default RE: no compression

it would be wise of you to remove the head and bring it to a machine shop. When valves get stuck, its time to replace parts.

sounds to me like you have bad springs, worn guides, and/or bent valves


please don't run your car like this
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Old 06-30-2008, 05:47 PM
  #14  
FoxGT
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Default RE: no compression

Probably a good idea to find out why the valve was sticking in the first place.
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