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Heat Wrap for Fuel Lines?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Blazer_Boy, Aug 4, 2002.

  1. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    Crawling under the shortbox tonight and noticed that my fuel line by the frame rail is only about 1/2" from my exhaust setup. Would getting some of that reflective heat wrap help? I suppose even doing the fuel line going from the pump to the carb wouldn't hurt. Would insulating the lines help or hurt?
     
  2. dyeager535

    dyeager535 1 ton status Premium Member

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    A plain stamped steel heat shield would work better IMO. Insulation is a two edged sword,(what heat penetrates, stays) a shield shoul dbe more effective in that situation.
     
  3. TopOff

    TopOff 1/2 ton status

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    I used Aluminum foil on mine. /forums/images/icons/laugh.gif

    I left it so there is enough room for some kind of air circulation between the foil and the line. I get about a 10 - 20 degree drop between the hot side of the foil and the fuel line, using a temp probe.

    My fuel lines are still kinda' hot at ~100 degrees...
     

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