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Vacuum Line Hard or Rubber?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Kyle89K5, Jun 7, 2004.

  1. Kyle89K5

    Kyle89K5 1/2 ton status

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    My hard lines are failing at a REALLY scarey rate on my 89. I need to get the vacuum hoses replaced about 3 days ago. Should I go back to the hard line? All the boots are trashed. Would it really hurt much to go with rubber lines throughout?

    Thoughts? Reasons? You're a dumbass quotes? Anything?
     
  2. dyeager535

    dyeager535 1 ton status Premium Member

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    I thought hard lines would be better, but to be honest, I think rubber is the way to go.

    The "nylon" ones seem to get brittle and don't bend very well...vibration probably doesn't help matters.
     
  3. Kyle89K5

    Kyle89K5 1/2 ton status

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    My hard lines are dry and cracking and the boots are splitting. I'm figuring that rubber would do the same, and be a LOT easier to replace over and over and over and....

    I'm thinking I'll pick up a bunch of hose and get to work in the next night or two. I know that is part of my vacuum leak problems. The MAP sensor is my other big PITA right now...

    KP
     
  4. Kyle89K5

    Kyle89K5 1/2 ton status

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    TTT

    Anyone? Is there such a thing as *extreme duty* vacuum lines? Hi-perf. vac lines?

    Help a brother out here?
     
  5. Resurrection_Joe

    Resurrection_Joe 1 ton status

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    [ QUOTE ]
    You're a dumbass quotes?

    [/ QUOTE ]

    I am NOT a dumbass quotes!
     
  6. Kyle89K5

    Kyle89K5 1/2 ton status

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    [ QUOTE ]
    [ QUOTE ]
    You're a dumbass quotes?

    [/ QUOTE ]

    I am NOT a dumbass quotes!

    [/ QUOTE ]

    Have you checked?





















































    /forums/images/graemlins/histerical.gif
     
  7. SkulzNBonz

    SkulzNBonz 1/2 ton status

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    Hey Kyle, I retubed ALL my vacuum lines late last year with hose. Heat, time, and UV are the enemy, especially w/ hard lines. They have a limited service life. Picked up the replacement line at Autozone. I figure I'll get a good five years out of the hoses before I'll even have to think about them. I suspect you could get some ss braided lines, but the cost would outweigh the usefullness. My 2 pennies.

    John
     
  8. dyeager535

    dyeager535 1 ton status Premium Member

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    Just to add to this, I couldn't find any of that hard stuff locally either. I got some from the wrecking yard, but since many of the factory lines are "formed", used ones don't work very well. I tried forming them with heat, but that just weakens them anymore.

    I would imagine, if you can get it, that rubber fuel line, especially high pressure stuff, would last longer than vacuum line.
     
  9. fortcollinsram

    fortcollinsram 1/2 ton status

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    At Napa we sell, these red silicon vacuum hoses. They cost about twice as much, but that is not saying much b/c they are still pretty cheap. They seem thicker and don't get as soft after I have been romping ont he BBC for a wile when they are nice and hot. Thus far, I ahve replaced about 1/2 of my vacuum hoses with thise silicon stuff..

    I also put wire loom over the stuff that lays on the engine (like my VRFPR line, charcoal cansiter, etc.)

    Chris
     
  10. jarheadk5

    jarheadk5 1/2 ton status

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    A friend of mine re-did his entire vacuum system with the silicone hose that the ricers love so much. Not only does it look good (I know, that's not important...), it cured a hesitation/stumble problem he had been chasing for months.
     
  11. Kyle89K5

    Kyle89K5 1/2 ton status

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    I'm gonna see about picking that stuff up this evening and doing it. I knew there had to be something that was a step above just rubber or hard.

    Thanks guys.

    KP
     

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