Vacuum Hose
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Senior User
Joined: Nov 2014
Posts: 172
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From: Otis,MA
Vacuum Hose
Greetings!
In my F6 I replaced the vacuum hose that goes to the brake booster with 1/2"ID emissions hose. That's what the local NAPA store said would work.
I have noticed that this hose collapses under vacuum. Is there another choice? Something more rigid? I really don't want to try and run tubing unless as a last resort.
This hose also collapses in short runs too, anything over 6".
Thanks!
In my F6 I replaced the vacuum hose that goes to the brake booster with 1/2"ID emissions hose. That's what the local NAPA store said would work.
I have noticed that this hose collapses under vacuum. Is there another choice? Something more rigid? I really don't want to try and run tubing unless as a last resort.
This hose also collapses in short runs too, anything over 6".
Thanks!
Fleet Owner
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From: NM
Logistics Pro
Joined: Sep 2014
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From: Bothell & Silverdale, WA
NAPA sells hose specifically for vacuum: https://www.napaonline.com/en/p/GAT27211
Logistics Pro
Joined: Sep 2014
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From: Bothell & Silverdale, WA
I always have that problem. They think "If it ain't in the computer, it doesn't exist". But the one that gets under my skin is that they don't understand that not every component is proprietary. There are an awful lot of parts used that are common to just about all vehicles. Only a definitive cross reference has that knowledge and it's usually stored inside an over 60 gearhead's mind.
Logistics Pro
Joined: Sep 2014
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From: Bothell & Silverdale, WA
Bob, the problem seems to be that Gates only sells it in 50ft rolls, I found some on eBay.
I seem to recall that PB hose is actually 15/32 ID? If so, this Gates hose would work: https://www.amazon.com/Gates-27233-P..._&dpSrc=detail
I seem to recall that PB hose is actually 15/32 ID? If so, this Gates hose would work: https://www.amazon.com/Gates-27233-P..._&dpSrc=detail
I thought about that other hose too. But when I looked at it, it was only one ply and pretty squishy. Don't understand how it's rated for vacuum.
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Lead Driver
Joined: Aug 2006
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From: Brentwood, TN
I am using silicone hose for my vacuum runs. My pump pulls between 22 and 24 inches of vacuum and so far no collapse of the hose. Silicone is very durable and impervious to temperature extremes and chemicals. I chose blue to match my paint but there are other colors available.
Logistics Pro
Joined: Sep 2014
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From: Bothell & Silverdale, WA
All class 8 trucks nowadays use FMVSS-121 certified nylon tubing. Don't think there is any rubber hose used anymore.
Last edited by Mixer man; Mar 6, 2018 at 03:24 PM. Reason: Correct FMVSS121
Thread Starter
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Senior User
Joined: Nov 2014
Posts: 172
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From: Otis,MA
I am using silicone hose for my vacuum runs. My pump pulls between 22 and 24 inches of vacuum and so far no collapse of the hose. Silicone is very durable and impervious to temperature extremes and chemicals. I chose blue to match my paint but there are other colors available.
