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Couple things...

Discussion in 'The Garage' started by Confedneck79K30, Jan 12, 2007.

  1. Confedneck79K30

    Confedneck79K30 3/4 ton status

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    so im looking to get my cab swapped on this weekend and tapering my fenders wide enough to fit my rad and electric fans between, and i wondered if anyone had done it, and THEN installed headers... also did anyone do a taper and use an 03 style grille??




    and...
    when my truck was running (before i yanked it apart), when it ran at idle, it would pop, randomly from the exhaust... could that have been from no crossover and one muffler on the left and none on the right?
     
  2. bbck5on37s

    bbck5on37s 1/2 ton status

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    sounds to me like you may have burnt a valve......no back pressure....
     
  3. Confedneck79K30

    Confedneck79K30 3/4 ton status

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    what causes a burnt valve?? too much fire in the valve cover? lol....
     
  4. 1977k5

    1977k5 3/4 ton status Vendor

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    If it is popping in the exhaust it is probably just raw fuel burning in the pipes. Do you have cats?
     
  5. Confedneck79K30

    Confedneck79K30 3/4 ton status

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    no cats, and only a muffler on one side (was well taken care of before i got it)...
     
  6. goldwing2000

    goldwing2000 Guest

    Not enough back-pressure, generally. Also leaking manifolds (intake or exhaust).

    A compression test and/or cylinder leakdown test will diagnose a burned valve.
     
  7. Confedneck79K30

    Confedneck79K30 3/4 ton status

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    gotcha... a machine shop i service quoted me 1200 for a long block valve covers to oil pan with my core... think ill go that route later...
     

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