Torque Specs needed-Cylinder Head

Discussion in 'Technical' started by MacMaverick, Oct 15, 2004.

  1. MacMaverick

    MacMaverick 1974 Ford Maverick 302

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    Guys,

    I'm no mechanic, but had a friend-mechanic take off the cylinder head of
    my Maverick because the machine shop put in all hardened valve seats. My
    car is a 1973 Maverick with a 200.

    The question is: What are the torque specifications for the cylinder head
    bolts? In other words, he said that if the finish torque was 75 ft lbs, then the
    specs may call for tightening the bolts to first 50 lb fts, then 65 and finally
    75 (like I mentioned, I'm no mechanic).

    If anyone knows this, please reply to this thread, or e-mail me directly at
    mac@net-magic.net. Thank you!

    Mac Daniel
    MacMaverick
    www.floundergigging.com
     
  2. MapleMav

    MapleMav Member

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    You're very close with those figures. According to Chilton, it's 55, then 65, and finally 75.
     
  3. Old Guy

    Old Guy Member

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    I think he meant that the shop was going to install the hardened seats. Don't understand why on a 200 though. Course there is a lot in this world I don't understand anymore!!! By the way Jerry, your are absolutely correct,
    Gettin old, Is not for sissies. Great quote for us that know.
     
  4. MacMaverick

    MacMaverick 1974 Ford Maverick 302

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    MapleMav,

    Thanks a bunch for the head numbers. The mechanic could only guess as to the
    specs until I gave him those, so I really appreciate it.

    By the way, the reason I had the machine shop put in hardened seats is because
    one of the valves got stuck. Even though the motor is only a 200, the whole car
    (including the motor, tranny, etc) only has 8,500 total miles on it, is very original so
    its worth it in my opinion.

    The head is back from the machine shop today, and after a head paint job with
    "old ford blue" we'll be putting it back on. I'm hoping for the best. Thanks, again,
    MapleMav. Good mavericking.

    MacMaverick
    www.floundergigging.com
     
  5. stockhatch

    stockhatch Re Member

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    The torque will depend on the fasteners used. I definitely wouldnt reuse stock bolts(not sure if you planed to, Im just saying that I wouldnt). If you do decide to use new fasteners, they should come with their own torque specs based on their specific elasticity, tensile strength etc... The torque spec may also change according to the type of lube used on the threads.

    AC
     
  6. MacMaverick

    MacMaverick 1974 Ford Maverick 302

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