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Question on using a leakdown tester.

  • Thread starter Thread starter BlueOvalStangGT
  • Start date Start date Dec 4, 2004

BlueOvalStangGT

Active Member
Oct 27, 2003
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Tampa Florida....USF!!!
Dec 4, 2004
#1
  • Dec 4, 2004
  • #1
I took all my sparkplugs out, oil breather and my radiator cap. Now I need to find TDC, can I just take the cap off of the dizzy and find out which cylinder the rotor is pointing to and then use that cylinder first?
 

BlueOvalStangGT

Active Member
Oct 27, 2003
2,849
0
46
Tampa Florida....USF!!!
Dec 4, 2004
#2
  • Dec 4, 2004
  • #2
Oh and why does it matter if I have all the plugs out? I just did cyl number 5 and air was coming out of my oil fill tube. That equals my rings are bad or my cyl wall is worn right?
 

BlueOvalStangGT

Active Member
Oct 27, 2003
2,849
0
46
Tampa Florida....USF!!!
Dec 4, 2004
#3
  • Dec 4, 2004
  • #3
Cyl 5=70% leakage, 6=60% leakage. I just remembered that you are supposed to have your engine warm for a compression test, does that apply for leakdown testers too? Im guessing yes.
 
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