Where to find 1/8" Hard Vacuum Tubing?

Where to find 1/8" Hard Vacuum Tubing?

Postby 98cirider [OP] » May 17th 2011, 3:31am

I've decided to replace all the vacuum tubing on my '90 Safari. The regular rubber hose is easy to find by the foot at the local auto store. What I cannot find is the hard tubing that is 1/8" OD. I did find a package at the auto store that was three feet long, but there are a couple runs that exceed six feet. Like the one from the front passenger side, across the firewall, inside the cabin, and over to the A/C controls.

I would like to use the OEM style tubing and not splice multiple pieces together. The product I found at the parts store is made by Dorman and sold under the brand name Vacu-Tite. It is just like the OEM, but only comes in three foot lengths. I wrote to Dorman and their response was that they only sell it in three foot lengths.

Does anyone know of a manufacturer that sells this type of tubing in long lengths? My next call is the dealer, oh goodie.

Thanks,
David
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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby Leeann_93Leeann_93 is online! » May 17th 2011, 3:53am

Other than getting the little white connectors to put together 2 lengths, I don't know of anyone that has longer lengths (at least, I haven't seen it).
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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby 98cirider [OP] » May 17th 2011, 6:57am

I think I found it at RockAuto. Here is the description:
GATES Part # 27041 7/64" x 50' (1/8" Nipple); Non-Reinforced - Priced Per Foot
It's $0.18 per foot.

On RockAuto's website, I started on the "Extras" tab, then did a search on "vacuum". From the results of the search, the path was Plumbing / Hose/Line / Vacuum Hose.

For 20 feet, the shipping cost twice as much as the tubing, but its better than not being able to buy it at all.

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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby throrope » May 17th 2011, 12:39pm

If yours has that vacuum accumulator behind the radiator, you may want to use annealed copperwith for the hose that runs past the exhaust manifold to a connection at the rear of the engine. I'm on the second plastic line and plan on copper for the next since the heat from the exhaust did in mine and many others here.
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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby 98cirider [OP] » May 17th 2011, 10:30pm

throrope wrote:If yours has that vacuum accumulator behind the radiator, you may want to use annealed copperwith for the hose that runs past the exhaust manifold to a connection at the rear of the engine. I'm on the second plastic line and plan on copper for the next since the heat from the exhaust did in mine and many others here.

Thanks for the advice. If the vacuum accumulator is the eight inch sphere, mine is closer to the right front wheel, not too close to the radiator or exhaust. So far, those lines all seem to be fine and I do not see any running too close to the exhaust manifold.
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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby Leeann_93Leeann_93 is online! » May 17th 2011, 10:53pm

Good to know - thanks for finding it!
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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby 98cirider [OP] » May 20th 2011, 10:03pm

98cirider wrote:I think I found it at RockAuto. Here is the description:
GATES Part # 27041 7/64" x 50' (1/8" Nipple); Non-Reinforced - Priced Per Foot
It's $0.18 per foot.

On RockAuto's website, I started on the "Extras" tab, then did a search on "vacuum". From the results of the search, the path was Plumbing / Hose/Line / Vacuum Hose.

For 20 feet, the shipping cost twice as much as the tubing, but its better than not being able to buy it at all.

David


Rats. Just received the order and not the correct tubing. The measurement of 7/64" is the internal diameter, NOT the external diameter. And the hose is soft rubber. It's a nice rubber vacuum hose, but it is not the hard vacuum tubing I was looking for. I guess I've also learned something, if its called hose, then its rubber. Tubing is the hard stuff.

It's hard to believe that someone does not sell this tubing in longer than three foot lengths.

Next stop is the dealer...

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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby Dirk » May 21st 2011, 12:11am

If I remember correctly there was a member here that had found the hard plastic tubing somewhere in the Dorman catalog.
Might be worth browsing through it.

Edit:

I did a quick search in the Dorman catalog and came up with:
part # 47417 it's stated as 1/8" tubing and comes in 3' length.
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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby Leeann_93Leeann_93 is online! » May 21st 2011, 12:49am

^ yup, we know about that stuff (in the local autoparts places). It's longer than 3' lengths he's looking for.
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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby 94 Van Guy » May 21st 2011, 3:45am

I'm not sure if this will do the job, but I googled 1/8" OD tubing and came up with this.

http://www.grainger.com/Grainger/LEGRIS-Tubing-2VDL5

I think there may be more places to find it.
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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby 98cirider [OP] » May 23rd 2011, 1:05am

94 Van Guy wrote:I'm not sure if this will do the job, but I googled 1/8" OD tubing and came up with this.

http://www.grainger.com/Grainger/LEGRIS-Tubing-2VDL5

I think there may be more places to find it.

I wonder if that tubing being nylon would be softer than the hard stuff installed by GM? If it is softer, it may not hold up when bundled with other cables and going through tight places. Thanks for the research.

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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby Dirk » May 23rd 2011, 8:45am

Looking at the specs I think it's tough as nails.
Looks like you can compare it to the hard black vacuum lines that run under the hood.
Just make sure you don't pinch it anywhere but that goes for softer tubes as well.
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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby 98cirider [OP] » May 23rd 2011, 4:47pm

Additional specs for that tubing say:

====================
Designed for long, leak-free service with little maintenance. Resists chemicals, humidity, and abrasion. Can be used in industrial applications, such as packaging, conveyors, automation machines, and robotics.
NFE 49.100 compliant.
- Temp. range: -4° to 175°F
- Hardness: Shore D60
====================

Is 175 degrees sufficient to be inside the engine compartment? I'm not sure how hot it gets around the engine.

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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby Dirk » May 23rd 2011, 5:03pm

175F is roughly about the same temperature as the coolant gets when the engine is warmed up.
But in the engine bay it will never get this hot because of airflow through it, you could always run the hoses across the engine bay via the upper radiator support.
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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby dadofanna » May 23rd 2011, 11:26pm

I've used drip irrigation tubing from home depot. The stuff I got was 1/4" but I just stepped it down with a connector. The stuff is dirt cheap and as far as I can tell the plastic is the same as the automotive type.
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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby 94 Van Guy » May 24th 2011, 2:22am

Dirk wrote:Looking at the specs I think it's tough as nails.
Looks like you can compare it to the hard black vacuum lines that run under the hood.
Just make sure you don't pinch it anywhere but that goes for softer tubes as well.

They also have the some 1/8" tubing in black.
http://www.grainger.com/Grainger/LEGRIS-Tubing-2VDK7
dadofanna wrote:
I've used drip irrigation tubing from home depot. The stuff I got was 1/4" but I just stepped it down with a connector. The stuff is dirt cheap and as far as I can tell the plastic is the same as the automotive type.

The irrigation tubing is polyethylene, and is not as tough as Nylon.
But at $8.82 for 50 ', for the black stuff, it's about as cheap as the irrigation tubing. You will have to pay for shiping from Grainger. If you have a Grainger store close to you, it may be in stock.

I think that either will work for the vacuum tubing you want to replace.

Hope this helps,

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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby 98cirider [OP] » May 24th 2011, 6:42pm

I ordered the tubing from Grainger. I'll report again when I receive it and if I think it will do the job.

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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby paulo57509 » May 25th 2011, 3:14pm

McMaster-Carr also carries all kinds of plastic tubing. Their catalog also has specs.

http://www.mcmaster.com/#
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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby 98cirider [OP] » May 25th 2011, 8:31pm

I received the order from Grainger today. The tubing feels just like the OEM stuff. However, it's just a tiny bit smaller OD than the GM tubing. I don't think it will be an issue. Perhaps one layer of some kind of tape around the end just before it goes into the soft rubber connector. If I was to order it again, I would get the next size up from the 1/8" OD.

I did order the black tubing.

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Re: Where to find 1/8" Hard Vacuum Tubing?

Postby 94 Van Guy » May 25th 2011, 11:24pm

That was fast, they must have had it in stock at your local Grainger store.

Just for others, the next size up that they sell is 5/32 inch. This may be the size the factory used, IDK if the 1/8 was what they used or was just what they called it. When replacing the hard plastic tubing, it is recommended to replace the rubber hose that connects to it.(if it's long enough, just snip off the end) The end of the soft rubber has a tendency to stretch.

FYI the next size up can be found here. http://www.grainger.com/Grainger/LEGRIS ... Pid=search

Good luck,
Keith
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