How to protect transmission hoses from exhaust heat ?

Discussion in 'Engine & Drivetrain' started by NoReverseYukon, May 25, 2019.

  1. NoReverseYukon

    NoReverseYukon TYF Newbie

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    OK, I upgraded those c-clip retainer type transmission-to radiator/cooler lines with a direct-thread kit. Unfortunately, the new kit uses rubber-type hose for the entire length.

    I currently have the hoses wrapped with exhaust wrap to prevent them from being damaged by the exhaust manifold and downtube, but want to use something more foolproof, like a heatshield.

    For those of you who have done this upgrade, what did you do ?

    Thanks.
     
  2. Rocket Man

    Rocket Man Sometimes A Dumbass

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    That doesn’t sound like an upgrade to me. AN fittings and braided stainless steel lines are an upgrade. Not rubber hoses. No way would I take a chance on those personally. Lose your trans fluid and you lose your trans.
     
    zraffz, ivin74 and swathdiver like this.
  3. NoReverseYukon

    NoReverseYukon TYF Newbie

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    How much exhaust heat can these braided lines tolerate ? There is rubber underneath that stainless, after all.
     
  4. Rocket Man

    Rocket Man Sometimes A Dumbass

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  5. NoReverseYukon

    NoReverseYukon TYF Newbie

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    Thanks, Rocket Man. I looked at your link ( and others ), and I noticed that none of the kits supply the correct fitting for the connection to the radiator. That requires a 3/8" male inverted flare fitting.
     
  6. Rocket Man

    Rocket Man Sometimes A Dumbass

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    Most guys just order the hose and AN fittings and make their own. They sell the fittings that are easy to put together without any special tools. I made my own fuel line to attach to the rails on my blower. Simple, just screw them together and tighten.
     
  7. alpinecrick

    alpinecrick Member

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    Lose the rubber hoses.

    Hard line is best (flows better and is the most heat resistant) and they can be fitted with flares. Braided line otherwise.
     
  8. NoReverseYukon

    NoReverseYukon TYF Newbie

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    The new kit with braided hose arrives today, but I can't find a 3/8 male inverted flare x 6AN fitting anywhere.

    I would have liked to keep the hardline, but was leery about that clip being up to the job. I thought I had the line fully seated and clipped, only to have it pop out while rehanging the exhaust. This was my first transmission rebuild and I should have attached these before lifting it up into position-not enough room to work otherwise.
     
  9. Rocket Man

    Rocket Man Sometimes A Dumbass

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    I just unscrew the fittings from the trans, it’s easier, and also do that right after putting in a couple bolts in the bellhousing while the trans is still angled down.
     

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