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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Hole in piston?

  • Thread starter Thread starter rrudholm
  • Start date Start date Jul 22, 2006

rrudholm

New Member
Apr 23, 2006
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Jul 22, 2006
#1
  • Jul 22, 2006
  • #1
What are the symtoms of a hole in a piston. There is no smoke but it kinda sounds like its not runing on all cylinders and there is a lot of valvetrain clicking noise. I adjusted the roller rockers but it still sounds the same.
 
R

rockin_rick

Member
Oct 9, 2003
968
1
17
Jul 22, 2006
#2
  • Jul 22, 2006
  • #2
Do a compression check. Hole in piston = no compression. This is what I would do first. This can also indicate other issues, like a valve that is not closing all the way, or blown headgasket...

You could also do a KOER cylinder balance test.

Rick
 

S/CBlack95GT

New Member
Apr 6, 2003
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Tampa Palms, FL
Jul 22, 2006
#3
  • Jul 22, 2006
  • #3
If you had a hole in the piston the car would be puking out smoke like mad. It also would barely run.
 

mo_dingo

20+ Year Stangneter
Aug 26, 2003
3,031
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Tucson, AZ
Jul 22, 2006
#4
  • Jul 22, 2006
  • #4
try a cylinder balance test and see if any cylinders are weak.
Scott
 

rrudholm

New Member
Apr 23, 2006
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Jul 22, 2006
#5
  • Jul 22, 2006
  • #5
Thanks, I think this whole problem is a valve train problem.
I will do a compression test first before anything. I did however pull the number 3 intake rocker off as it was lose and seen signs that the pushrod made some gouges in the rockers . I hope the cam is not damaged. I had a local machine shop build this engine but I'm not too happy with them at this point.
 

mo_dingo

20+ Year Stangneter
Aug 26, 2003
3,031
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58
Tucson, AZ
Jul 22, 2006
#6
  • Jul 22, 2006
  • #6
Personally I would start with a CBT first, b/c if there is a valvetrain problem, it will isolate it to one or more cylinders.

But the spark plug condition is another good test.
Scott
 

rrudholm

New Member
Apr 23, 2006
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Jul 22, 2006
#7
  • Jul 22, 2006
  • #7
I'm not sure what a cylinder balance test is or how to do one?
 
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