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Headgaskets, Which ones? Smoking?

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  • Headgaskets, Which ones? Smoking?

    So it looks as if i may be doing HG's on the MC finally. What has everyone had the best luck with, OEM, Felpro, other ?

    Another questions, when idling for example in drive threw if its a long wait (2 min) it will start smoking out the exhaust like 007 James bond style smoke screen... HG's or you think it may be something deeper? the car did sit for like 2 years without startup so i need to figure out if its HG's, Rings or Valve seals or what. Everyone says its the turbo but i don't think it is, doesnt smoke much under hard boost and when i power braked it once the WG opened and smoke was pouring out the Wastegate dump.. so that tells me pre-turbo. the HG's have some crust under them if you look up from under the lift and there is oil dripping down the whole front of the motor and some coolant along with it. I don't wanna put HG's on if the rings are toast if you know what i mean

    what are your thoughts?

    S
    Shane "RedZMonte"
    2004 Corvette Z06 Commemorative Edition -VIRGIN
    1995 Monte Carlo Z34 14.38@101mph, 331hp/355tq
    -Turbonetics T04E Super 60 Turbo, 2.5" Borla Catback, OBDII, 42.5# Injectors
    2004 Subaru WRX STI -Lightly Modded (SOLD)
    1994 Lumina Z34 -VIRGIN (SOLD)
    1992 Lumina Z34-VIRGIN (RIP)
    1992 L67 Lumina Z34 (SOLD)
    1990 Turbo Grand Prix (SOLD)

  • #2
    Run a compression test, then dump some oil down the cylinders, then compression test again. If compression goes up a really good amount with the oil, it's rings.
    -60v6's 2nd Jon M.
    91 Black Lumina Z34-5 speed
    92 Black Lumina Z34 5 speed (getting there, slowly... follow the progress here)
    94 Red Ford Ranger 2WD-5 speed
    Originally posted by Jay Leno
    Tires are cheap clutches...

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    • #3
      When the turbo seals went out on my TGP it would smoke like a diesel on decel....
      2004 Pontiac GTP 3.8 SC
      1997 Pontiac GTP 3.8 SC
      1996 Pontiac GTP 3.4 DOHC
      1990 Pontiac TSTE (x2) 3.1 Turbo
      1990 Pontiac TGP 5Speed

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