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Do steel lines have to be flared?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Can Can, Mar 24, 2001.

  1. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    I'm looking to upgrade my aux tranny cooler a size or two and while scoping out the setup, I realized that when I installed my first cooler, I never bothered to flare the steel lines when I hooked them up to the rubber ones. Basically I just slid the rubber lines over the steel lines and tightened them up with a hose clamp. I've never had any leaks, but I'm curious- Is flaring the steel tubing a better way to go?

    If so, how does a guy go about flaring an end?




    <font color=red>PHOTO ALBUM-</font color=red> <A target="_blank" HREF=http://albums.photopoint.com/j/AlbumList?u=1289798>http://albums.photopoint.com/j/AlbumList?u=1289798</A>.......<font color=blue>TRUCK & HIKING PICS</font color=blue>
     
  2. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    in this situation you dont need to but it would give you a stop if the rubber hose started to slide of the flare would catch the hose clamp

    77blazer see it at<A target="_blank" HREF=http://community.webshots.com/user/ssmith6333>http://community.webshots.com/user/ssmith6333</A>[​IMG]
     
  3. BobK

    BobK 1/2 ton status

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    I didn't have the lines to my cooler flared when I tightend up the clamps in the summer,well the weather got cooler, the rubber tubes shrank and proceeded to blow off on the highway.That wasn't the bad part as I had extra tranny fluid in the truck and tools to tighten the clamps up.The bad part was I was driveing my wife to work at the time.I felt guilty for making her late for work.It seems the truck only breaks down with her in it.She doesn't like my Blazer too much.

    [​IMG]<font color=green>BobK<font color=green>
     
  4. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    So what do I have to do to flare the ends? Is there a special tool I can buy, or does it have to be professionally done?



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  5. fr8train

    fr8train 1/2 ton status

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    Yeah you get a tubing flarer from autozone, J.C. Whitney, Home Depot, etc... Shouldnt cost more than $20.

    [​IMG]
     

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