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  1. #1
    Join Date
    Jun 2012
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    greenville sc
    Posts
    10

    Default Stuck Transmission line at Radiator. HELP

    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?
    Follower of the Peahuffs.
    Lover of Southern Muscle

  2. #2

    Default Re: Stuck Transmission line at Radiator. HELP

    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.
    --Bill--

    1966 Buick Skylark 4-dr Hardtop 340-2, ST300, 2.78s

    1967 Buick Skylark 4-dr Post-sedan- Parted out, gone but not forgotten
    Lots of parts left still
    http://www.v8buick.com/showthread.ph...oor-Post-Sedan

    1997 Dodge Ram 1500 SLT Laramie, 318, AT, 3.55s "The Parts Hauler"

  3. #3
    Join Date
    Jun 2012
    Location
    greenville sc
    Posts
    10

    Default Re: Stuck Transmission line at Radiator. HELP

    Quote Originally Posted by urbancowboy0307 View Post
    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.

    I tried this earlier but ill give it another go
    Follower of the Peahuffs.
    Lover of Southern Muscle

  4. #4

    Default Re: Stuck Transmission line at Radiator. HELP

    Quote Originally Posted by ecifro View Post
    I tried this earlier but ill give it another go

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

    1966 Buick Skylark 4-dr Hardtop 340-2, ST300, 2.78s

    1967 Buick Skylark 4-dr Post-sedan- Parted out, gone but not forgotten
    Lots of parts left still
    http://www.v8buick.com/showthread.ph...oor-Post-Sedan

    1997 Dodge Ram 1500 SLT Laramie, 318, AT, 3.55s "The Parts Hauler"

  5. #5
    Join Date
    Sep 2004
    Location
    Michigan, USA
    Posts
    15,040

    Default Re: Stuck Transmission line at Radiator. HELP

    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
    Fuel & Brake Systems Engineer
    "I can live with doubt and uncertainty and not knowing. I think it's much more interesting to live not knowing than to have answers which might be wrong." - Feynman
    "Good data is precious. The problem I have is when some damned fool fails to use it properly." - Slingerland

  6. #6
    Join Date
    May 2009
    Location
    Oakland Maine
    Posts
    186

    Default Re: Stuck Transmission line at Radiator. HELP

    Try tapping the tube nut with a small hammer gently.
    Rob H

  7. #7
    Join Date
    Jun 2012
    Location
    greenville sc
    Posts
    10

    Default Re: Stuck Transmission line at Radiator. HELP

    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.
    Follower of the Peahuffs.
    Lover of Southern Muscle

  8. #8
    Join Date
    Feb 2010
    Location
    Framingham, Ma
    Posts
    2,811

    Default Re: Stuck Transmission line at Radiator. HELP

    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.
    "To achieve great things, two things are needed: a plan, and not quite enough time."
    --Leonard Bernstein

  9. #9
    Join Date
    Mar 2004
    Location
    The ATX
    Posts
    5,890

    Default Re: Stuck Transmission line at Radiator. HELP

    Quote Originally Posted by DaWildcat View Post
    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
    Absolutely. Heat is your friend. Just try to heat the nut (the female threaded part) not the male part.


    Frank Brooks, Austin, TX USA
    1969 Riviera
    WOT Charter Member
    2014 GMC Sierra SLT 4WD CC


  10. #10
    Join Date
    Feb 2002
    Location
    NY
    Posts
    13,631

    Default Re: Stuck Transmission line at Radiator. HELP

    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
    Alan W

    BPG # 1048 - Charter Member
    NE GS/GN Club - 17 Year Member
    68/69 Buick StepChild Nation - 29 Year Member

    What is a Buick StepChild ?
    Quote Originally Posted by 442w30 View Post
    ... They have awkward proportions from certain angles, and they look dumpy compared to their GM brethren
    ....'68 SportWagon400 "Sportn'Wood"..............'69 GS400 Convert "BigRed"..........

  11. #11
    Join Date
    Nov 2009
    Location
    SE PA
    Posts
    892

    Default Re: Stuck Transmission line at Radiator. HELP

    Quote Originally Posted by ecifro View Post
    I tried this earlier but ill give it another go
    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.
    LOU

    70 GSX STAGE 1 QQ #554
    73 RIVIERA

  12. #12
    Join Date
    Nov 2010
    Location
    Simi Valley, CA
    Posts
    2,954

    Default Re: Stuck Transmission line at Radiator. HELP

    Quote Originally Posted by 69GS400s View Post
    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
    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 ----------

    Quote Originally Posted by gsx455-4ever View Post
    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.
    Now that there is some pretty good advice!
    '68 Buick Skylark California GS
    '00 Chevy Astro Van
    '70 Chevy 3/4 Ton Longhorn Custom Camper, numbers matching

  13. #13
    Join Date
    Feb 2002
    Location
    LI,NY
    Posts
    16,526

    Default Re: Stuck Transmission line at Radiator. HELP

    I would of used a compression fitting and a replacement piece of steel line and a new nut. It would be a perfect repair
    Jason Cook
    BPG #1675
    "Expert in obsolete technology"

    1968 Riviera GS- some assembly required
    1969 Riviera GS- my first car
    1970 Stage 1 4 speed Aquamist
    1971 GS 455 11.93@113.36
    1987 Grand National
    1970 Stellar Industries vintage go kart

    When tyranny becomes law, rebellion becomes duty

  14. #14
    Join Date
    Jun 2014
    Location
    Stafford, VA
    Posts
    32

    Default Re: Stuck Transmission line at Radiator. HELP

    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
    Semper Fi,

    Gunny G
    1965 Skylark 300 V8 4.9 L

  15. #15
    Join Date
    Feb 2002
    Location
    LI,NY
    Posts
    16,526

    Default Re: Stuck Transmission line at Radiator. HELP

    Normally, the steel lines going to the trans are 5/16"
    Jason Cook
    BPG #1675
    "Expert in obsolete technology"

    1968 Riviera GS- some assembly required
    1969 Riviera GS- my first car
    1970 Stage 1 4 speed Aquamist
    1971 GS 455 11.93@113.36
    1987 Grand National
    1970 Stellar Industries vintage go kart

    When tyranny becomes law, rebellion becomes duty

  16. #16
    Join Date
    Jun 2014
    Location
    Stafford, VA
    Posts
    32

    Default Re: Stuck Transmission line at Radiator. HELP

    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.
    Semper Fi,

    Gunny G
    1965 Skylark 300 V8 4.9 L

  17. #17
    Join Date
    Feb 2002
    Location
    LI,NY
    Posts
    16,526

    Default Re: Stuck Transmission line at Radiator. HELP

    Should be regular steel line with a flare nut. You need 5 sided flare nut wrenches
    Jason Cook
    BPG #1675
    "Expert in obsolete technology"

    1968 Riviera GS- some assembly required
    1969 Riviera GS- my first car
    1970 Stage 1 4 speed Aquamist
    1971 GS 455 11.93@113.36
    1987 Grand National
    1970 Stellar Industries vintage go kart

    When tyranny becomes law, rebellion becomes duty

  18. #18
    Join Date
    Jan 2013
    Location
    Columbia, SC
    Posts
    22

    Default Re: Stuck Transmission line at Radiator. HELP

    Quote Originally Posted by bammax View Post
    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.
    I'll second this recommendation!

 

 

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