melting vac lines

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1995240sxSE
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I Had an issue 2 days ago with my wastegate not opening, I got a little scared. I went home and poped the hood and the vac line was melted. I robbed some from my mbc. So I gotta get some new vac hose to rehook the mbc back up. The question is is there a special high heat vac hose that can goto the wastegate near exhaust and turbo that aint gonna melt like the autozone special, buy by the foot vac hose?


scheffler
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hey I had the same problem I just rerouted my vac line and keep it away from direct heat. I dont think that ther is vac line that you are looking for, but you could wrap it in something like thermo wrap for your manifold or something like that.

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480sx
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Its all about how you run your vac line man. There is no such thing as a vacuum line that can withstand EGT's. I would suggest running your vacuum line from the left side of your engine all the way over to the right side, and tying it there, before you drop it to your wastegate.

gaehrings13
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I have some kind of Hayame silicone vac hose (its real thick) on mine and haven't had any problems with it melting. My hose goes from the front housing right down to the wastegate.

S13FX
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One thing you can also do is heat wrap your manifold and get your self a turbo blanket.

It will lower engine bay temperatures by a noticeable amount, and probable prevent from meltdowns ..

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1995240sxSE
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Well I have the wastegate line on there. I re routed it and after a week no melting! I am gonna get some more line and rekhook my mbc and I will be back at 15 psi again. 7 is just no fun!!!!

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WDRacing
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Aluminum foil works as a temp heat shield. Autozone sells heat wrap for wiring etc that will help. Routing is the best option though. Make sure you use quality vac line in that area.

WD

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1995240sxSE
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Car: 1991 jeep wrangelr and a 2004 ford taurus

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I think I found the problem. I used the vac lines that came with my mbc. They were are all cracked. I bought 10' of vac line from autozone and much better. only 10 psi but better that 7! I am happy with the car now! Drove 200 miles today and it was good!

Florida240sx
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I ran my wastegate line along firewall, around clutch master cylinder down to the wastegate. Never had any problems

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1995240sxSE
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Car: 1991 jeep wrangelr and a 2004 ford taurus

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Thats what I did with the new lines! I just tried to keep it as far away as possible from manifold and turbo and downpipe!


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