Help with 727

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    Author Topic: Help with 727  (Read 3028 times)

    Offline thedodgeboys

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    Help with 727
    « on: May 24, 2009 - 03:03:09 PM »
    Lost reverse in my 727 at first I thought I broke the band but it is acting odd.
    The car wants to move forward in park and neutral and it’s not sure what it wants to do in reverse.
    Any thoughts  :clueless: do I have to pull it or can I just drop the pan and adjust something?
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    Offline Bullitt-

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    Re: Help with 727
    « Reply #1 on: May 24, 2009 - 03:32:55 PM »
    Quick thought.... is shifter linkage out of adjustment?
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    Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
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    Offline thedodgeboys

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    Re: Help with 727
    « Reply #2 on: May 24, 2009 - 04:21:31 PM »
    Quote from: Bullitt- on May 24, 2009 - 03:32:55 PM
    Quick thought.... is shifter linkage out of adjustment?

    No
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    Offline Moparal

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    Re: Help with 727
    « Reply #3 on: May 24, 2009 - 04:27:18 PM »
    I had a 727 do that once. I had to take the valve body off and a cup under it, it had tipped sideways. It also hurt a rubber seal. It tried to roll in park n neutral and also bind up like yer saying. Not sure if its the same problem tho. It does sound the same. I was told to never go into reverse from park on a new rebuild. Go from neutral to forward. Something has to fill up to make the cup and seal do right or it kicks sideways sometimes
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    Offline tactransman

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    Re: Help with 727
    « Reply #4 on: May 24, 2009 - 08:12:47 PM »
    The forward clutches are burnt up and welded together.
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    Terry-tactransman 
    Torqueflite/Automatic Transmission Specialist
    Union, Mo.
    Give a man a fish and he eats for a day,teach him to fish and he eats for a lifetime.

    Offline thedodgeboys

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    Re: Help with 727
    « Reply #5 on: May 24, 2009 - 09:40:39 PM »
    Quote from: tactransman on May 24, 2009 - 08:12:47 PM
    The forward clutches are burnt up and welded together.

    Rats

    Thanks
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    Offline Bullitt-

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    Re: Help with 727
    « Reply #6 on: May 24, 2009 - 10:11:34 PM »
    dodgeboy....at least your closer to Terry's shop than most... He's in Union City, MO
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    Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
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    Offline ntstlgl1970

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    Re: Help with 727
    « Reply #7 on: May 25, 2009 - 02:30:54 AM »
    Is reverse the only problem gear? Does it still have 3rd?

    Just wondering if it popped the low/reverse servo link or flipped the low reverse piston

    That sucks if the forward clutches are toast.
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    70 Cuda, 7.0L Gen-III Hemi, Viper T56 w/9310 gearset, 3.91's, Megasquirt MS3x v3.57, Innovate wideband, Firm Feel upper arms, torsion bars, springs and strut rods, QA1 DA shocks. I did everything on this car except the fancy paint stuff and I drive it...and I can't seem to stop messing with it....

    Offline thedodgeboys

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    Re: Help with 727
    « Reply #8 on: May 25, 2009 - 07:36:45 AM »
    Quote from: Bullitt- on May 24, 2009 - 10:11:34 PM
    dodgeboy....at least your closer to Terry's shop than most... He's in Union City, MO

    Yep I thought of that but; if the trans has to come out I should just start putting the 6 speed in.  :working:
    So much for making it through the summer with the auto  :burnout: broke it on the first drive.

    Quote from: ntstlgl1970 on May 25, 2009 - 02:30:54 AM
    Is reverse the only problem gear? Does it still have 3rd?

    Just wondering if it popped the low/reverse servo link or flipped the low reverse piston

    That sucks if the forward clutches are toast.

    Ya  :pullinghair: I will pull the pan and look but I don’t know much about the inside of an auto so anything that falls out must be broken…  :22yikes:


    When it broke, I just finished a small burnout in the driveway, the motor died and I had some odd smoke roll up from under the hood, no obvious fluid leeks so Terry's forward clutch diagnosis sounds plausible.

    So much for showing off…   :smilielol:
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