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01-25-2017
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#1 |
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Join Date: Aug 2014
Location: Kansas City, MO
Posts: 835
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Vacuum Tubing
Instead of dealing with dry rotted hoses and proprietary fittings I have decided it might be better to use Silicone tubing. Does anyone know what the common size the vacuum hosing is under the plenum?
https://www.amazon.com/High-Performa...009PYDTAK?th=1 |
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01-25-2017
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#2 |
 
Join Date: Mar 2014
Location: Warrington PA
Posts: 1,914
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Re: Vacuum Tubing
I guess you can make anything work, but I would suggest using the stock replacement vacuum hoses and connectors from Jerrys. When we did my plenum pull this past weekend, I had all new hoses ready to go. Even when told some of the old ones looked, we replaced anyway. And the check valve connection was very loose. And then there was the split in the PCV hose. Yes it was an expense to replace the hoses, but well worth it for me. My vacuum is 100% tight, pump is plugged in and comes on for 2 sec when starting and shuts off. And I have my secondaries.......JMO
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Tom 1994 ZR-1 #009 "captured test fleet car" 1974 LS4 454 Vert 1974 L-82 355 Vert. 1982 L83 CFI...now a retired "dd"....Sold WAZOO Member |
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01-26-2017
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#3 |
 Join Date: Aug 2006
Location: McLean, VA
Posts: 3,728
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Re: Vacuum Tubing
Silicone hoses are far better. Under plenum vacuum hoses, I think, can be replaced with 1/8" silicone hose. I would just replace the tips.
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01-26-2017
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#4 |
 Join Date: Jan 2015
Location: Marietta, GA USA
Posts: 1,148
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Re: Vacuum Tubing
A guess: 4mm is a pretty popular size. Lots of it available on eBay.
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01-26-2017
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#5 |
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Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,786
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Re: Vacuum Tubing
I actually like the hard plastic tubes to couple longer sections of line, rather than having a long rubber line. GM used a lot of it in the 90's so I have a small collection of it. As far as rubber hose, I would recommend getting European style metric hose with the braided cover.
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01-26-2017
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#6 |
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,466
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Re: Vacuum Tubing
Vacuum lines?...VACUUM LINES??? WE DOAN NEED NO STEENKING VACUUM LINES!!!
 https://www.youtube.com/watch?v=VqomZQMZQCQ 
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01-26-2017
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#7 | |
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Join Date: Aug 2006
Location: McLean, VA
Posts: 3,728
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Re: Vacuum Tubing
Quote:
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Hybrid Mode
