Stuck Transmission line at Radiator. HELP

Discussion in 'Wrenchin' Secrets' started by ecifro, Jun 27, 2012.

  1. ecifro

    ecifro Member

    Im trying to replaced my bad radiator and the bottom transmission line is seized in the fitting so everytime I try to turn the fitting to remove it from the radiator, the whole line wants to twist. I've PB blasted it and tried loosening and tightening. Is there anything else i can try?
     
  2. urbancowboy0307

    urbancowboy0307 Silver Level contributor

    two weekends ago when I did the engine swap from my 67 to my 66 pretty much everyline was frozen like you describe.

    I'd spray it with some PB blaster or your favorite penetrating oil let it sit.

    Then very very carefully and I cannot stress the carefully part. use a pair of vice grips to clamp the line part and use a line wrench to turn the nut. Watch the line to see if it continues to turn with the nut or if it breaks free.

    if you clamp it too hard you'll squash the line and if you twist too hard before it loosens you'll twist the line. I'd say use that as a last resort.
     
  3. ecifro

    ecifro Member


    I tried this earlier but ill give it another go
     
  4. urbancowboy0307

    urbancowboy0307 Silver Level contributor


    I'll add I wasnt as concerned about saving some of the lines, and I did break some of them.
     
  5. DaWildcat

    DaWildcat Platinum Level Contributor

    Use a propane torch to heat the tube nut a bit, not as far as red hot. Quench the nut with cold water, attempt to loosen the nut normally. Repeat if necessary and lubricate again when it's in the cold state. If you heat while the lubricant is still present, avoid breathing fumes.

    Devon
     
  6. Goodwrench04963

    Goodwrench04963 Well-Known Member

    Try tapping the tube nut with a small hammer gently.:TU:
     
  7. ecifro

    ecifro Member

    nothing worked... haha i ended up hacksawing the line clamping a hose to the cut line and then to a new line and fitting :) working as intended... at least for now haha.
     
  8. bammax

    bammax Well-Known Member

    You can run a barb fitting or just bend up some new hard line and put a bubble on it to work as a barb. I've done this on plenty of cars. Not factory correct, but it works great and makes it easier to do radiator repairs in the future.
     
  9. austingta

    austingta Well-Known Member

    Absolutely. Heat is your friend. Just try to heat the nut (the female threaded part) not the male part.
     
  10. 69GS400s

    69GS400s ...my own amusement ride!

    A hose and clamp over the cut line with no flare or other means to "stop" the hose from coming off will come off and make quite a mess when the tranny fluid sprays under hood ...

    ... ask me how I know
     
  11. GSX 554

    GSX 554 Gold Level Contributor

    Something to try in the future is to hold the tube with the flaring tool yoke and try to turn the nut with a line wrench. Use lots of rust spray. Its saved my A&& many times.
     
  12. SteeveeDee

    SteeveeDee Orange Acres

    A line popped off my transmission cooler (Hayden, in front of the radiator) in my '56 Chevy wagon on the freeway many moons ago. I put the clamp back on with a dime as a screwdriver and coasted slowly backwards about a mile on the freeway shoulder to the onramp, walked to a gas station, got 6 quarts of ATF (deep pan), refilled it, and was on my way. I rode that brake down the hill the whole way, at a ridiculously slow speed. Ended up with a crick in my neck from looking back. I'm willing to bet the underside of that wagon is still not rusted.

    ---------- Post added at 06:27 PM ---------- Previous post was at 06:26 PM ----------

    Now that there is some pretty good advice!
     
  13. CJay

    CJay Supercar owner Staff Member

    I would of used a compression fitting and a replacement piece of steel line and a new nut. It would be a perfect repair
     
  14. maseusmc

    maseusmc Gunny G

    my Transmission line is not stuck it actually came off pretty easy. but my question.... I'm trying to figure out which lines will connect to the current a/t lines? my new radiator has the a/t holes on the right vice the bottom. I'm being told that i just need to flare the new lines and connect them to the radiator but the problem is... i dont know what size to buy. Could someone help me out so that I can start working on the brakes so that i can drive this car.

    Semper Fi,
    Gunny G

    maseusmc@gmail.com
     
  15. CJay

    CJay Supercar owner Staff Member

    Normally, the steel lines going to the trans are 5/16"
     
  16. maseusmc

    maseusmc Gunny G

    Thanks for the help.. come to figure out.... I need a special tool to take the transmission line off... Where do I buy disconnect tool for a 1965 Buick Skylark V8 300 4.9l transmission cooler line? I bought a 4 back of tools from Auto ZOne but either they are the wrong size or I'm not doing something right. Please help.
     
  17. CJay

    CJay Supercar owner Staff Member

    Should be regular steel line with a flare nut. You need 5 sided flare nut wrenches
     
  18. chrisg

    chrisg Silver Level contributor

    I'll second this recommendation! :TU:
     

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