Engine & Internal Chat about beefing up your engine's insides here.

Yellow stuff on Valves?

  #1  
Old 09-18-2006, 03:27 PM
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Default Yellow stuff on Valves?

Just getting ready to do a mini me, and on some of the valves on the head I bought, there is no carbon, just a ruff yellow substance. What is this? How did it get there? Is it anything to worry about?
 
  #2  
Old 09-18-2006, 07:35 PM
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Default RE: Yellow stuff on Valves?

crusty yellow stuff built up on valves can never really be a good sign, i just dont know what that sign is
 
  #3  
Old 09-19-2006, 07:25 AM
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Default RE: Yellow stuff on Valves?

Thanks for the comment.....but that doesn't help me much!
 
  #4  
Old 09-19-2006, 01:08 PM
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Default RE: Yellow stuff on Valves?

Anyone out there that can help???
 
  #5  
Old 09-19-2006, 01:33 PM
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Default RE: Yellow stuff on Valves?

picture? you shure its not just carbon build up? under certaint conditions carbon can become yellowish usually on the exhuast valves
 
  #6  
Old 09-19-2006, 02:14 PM
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Default RE: Yellow stuff on Valves?

Its just baked on carbon.
 
  #7  
Old 09-19-2006, 02:49 PM
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Default RE: Yellow stuff on Valves?

Might be carbon.....It is only on the valves marked A8. Any way to get it off without damaging the valves??
 
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