Would it help preserve the (new) valley hoses if I put heat shielding on them? Seems to me they would last longer if they had some plastic heat shielding on them, or some type of sheathing cover?????

 

Would be very interested in your replies, I am just about to change these hoses plus the octopus hoses!

 

I would think I would have had many replies by now. Simple question, even in the title to get attn to the subject matter. I don't see the help here that I got back in 2010 or so when I had my first Jag.

 

Being that they are in an enclosed space with no real airflow around them, the hoses will eventually come to the local environmental temperature whether they are insulated or not.

I didn't bother when I replaced the hoses under the supercharger.

 

I can't help with your question but most folks don't log on everyday, give it a couple days and anyone with an opinion will chime in.

Never seen this question before so there may not be a lot of knowledge on the subject.

 

+1 on this, there's no benefit to be had. And... they're containing coolant at the not-so-cool temperature of around 200F, they'll heat up pretty darn quickly.

Steve

 

+1 nice idea but won't work, sadly.

 

It will not work, as the heat shielding will actually make the hose warmer and not cool down as fast.

What will work, is silicone hose, they outlast the vehicle.

 

Hoses on my mustang lasted 42 years.

 

pardon my lack of knowledge on these hoses i have yet to have an issue with them
but has no one come up with a sturdier after market alternative like
metal or a higher grade of hose?

 

Suspect it is not a daily driver???????

 

I was a professional mechanic 42 years ago and without exceptional, extenuating circumstances (read: massive luck, divine intervention, parts sourced from another galaxy) no automotive hose would be reliable at that age, at that time. It has only been the past 15-20 years that auto/hose makers realized the conductance of the cooling system was detrimental to hose life and made the corrections to allow near lifetime hoses.

Realize that in another ten years you'll probably need to remove the intake for some other reason and you can replace them then, provided you'll have the car that long. You could also replace them now with silicone hoses which can handle the heat better. Ask Tony how his are holding up.

 

While I agree that the Valley Hoses would not benefit from heat shielding, I will be adding shielding (similar to what's already on the fuel line in one location) to any hoses and plastic fittings that are above and near the catalytic converters and exhaust. Most of those fittings are rated for 125 deg C continuous, and I would be surprised if the "oven" above each converter does not exceed that.