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Thread: Cracked head ?

  1. #1
    Join Date
    Feb 2001
    Location
    Tampa Fla
    Posts
    430

    Default Cracked head ?

    I run a ford 2.3 in ITB and was wondering what are the signs of a cracked head? Lately the number 3 plug is very wet with oil. There is now compression loss or overheating but there is some blue smoke that comes out of the exhaust from time to time. Could it be valve seal?

  2. #2
    Join Date
    Sep 2012
    Posts
    107

    Default

    could easily be oil control rings or valve seals I'd say

  3. #3
    Join Date
    Nov 2007
    Location
    South of Chicago, near Indiana.
    Posts
    248

    Default

    I agree on the valve seals or rings. Most cracked heads are found on the turbo models as they run hotter and on engines that have been overheated due to lack of maintainence.
    1988 ITA Scriocco 16V #80
    MCSCC member since 1988

  4. #4
    Join Date
    Feb 2001
    Location
    Tampa Fla
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    430

    Default

    Thanks guys. I'll check and replace the seals as that can be done without removing the head.

  5. #5
    Join Date
    Sep 2008
    Location
    Weare, NH
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    483

    Default

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  6. #6
    Join Date
    Dec 2005
    Location
    Western New York
    Posts
    159

    Default Cracked head....not usually.

    Manny,

    Best guess problem area is the stem seals, if you have them. Some Ford 2.3 did not use stem seals, just the stem/guide clearance (being cast iron, it works for a while).

    Best procedure is to remove the head, and knurl the guides for proper clearance, check the seats for cracks (while it's off), and regrind seats and valves for best sealing.

    Cure the leak, and improve performance for a more trouble free season!! What a deal.

    Or run a hotter plug to deal with the oil.

    Good racing,

    Bill
    Bill Frieder
    MGP Racing
    Buffalo, New York

  7. #7
    Join Date
    Sep 2012
    Posts
    107

    Default

    Quote Originally Posted by lawtonglenn View Post
    I see what you did there ............haha

  8. #8
    Join Date
    Feb 2001
    Location
    Tampa Fla
    Posts
    430

    Default

    thank you Bill. I can allways count on you

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