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MarkWard Samba Member
Joined: February 09, 2005 Posts: 17114 Location: Retired South Florida
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Posted: Fri Apr 16, 2021 7:23 am Post subject: Re: Hard brake line replacement: what size line and fittings? |
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Cheaper tubing will be seam welded, which is fine for your application. Better quality tubing would be drawn over mandrel or DOM. _________________ ☮️ |
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valvecovergasket Samba Member
Joined: October 10, 2018 Posts: 1491 Location: pnw
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Posted: Fri Apr 16, 2021 7:34 am Post subject: Re: Hard brake line replacement: what size line and fittings? |
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if youre looking to save a few bucks on the coolant plumbing, wonder how the cost would compare to running the whole length with some marine hose? _________________ MegaSquirt resource - SpitfireEFI.com
gone, but not forgotten: '83 tdi westy - swap thread |
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Jeffrey Lee Samba Member
Joined: February 04, 2014 Posts: 1488 Location: Wisconsin
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Posted: Fri Apr 16, 2021 7:46 am Post subject: Re: Hard brake line replacement: what size line and fittings? |
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valvecovergasket wrote: |
... running the whole length with some marine hose? |
Perhaps more significantly, hose would greatly simplify the larger challenge of matching all the intricate bends and angles required to ensure that Point A eventually connects to Point B.
As mentioned, replicating the custom bends on brake lines is challenging enough—I would not want to do so with 1.5" SS tubing unless I had the skills and tooling. _________________ Camp Westfalia
Camping Tips • Newsletter • Cool Campervan Apparel
www.CampWestfalia.com |
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MarkWard Samba Member
Joined: February 09, 2005 Posts: 17114 Location: Retired South Florida
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Posted: Fri Apr 16, 2021 7:50 am Post subject: Re: Hard brake line replacement: what size line and fittings? |
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We have the tools to bend and weld tubing, but I still got my tubes from Bus Depot. My experience is that when someone has done the development, the time savings is well worth it.
I know a few members have gone the marine hose route. The trick would be supporting it, since it would have a tendency to droop with it's own weight plus the weight of the coolant. _________________ ☮️ |
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4Gears4Tires Samba Member
Joined: October 08, 2018 Posts: 3019 Location: MD
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Posted: Fri Apr 16, 2021 7:52 am Post subject: Re: Hard brake line replacement: what size line and fittings? |
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https://www.overtons.com/shields-shieldsflex-ii-1-12-waterexhaust-hose-with-wire-25l-325534.html
At $200 for 25' I guess you can save $125. Temp rating looks perfect. I don't see anything about pressure rating for this product, but other wet/exhaust hose I found is rated for 42-87psi, so it's probably exceeding needed spec. I just measured and 22' is probably enough for the 2 runs so you'd have a bit left over for shorter connections. _________________ '87 Syncro
Ferric Oxyhydroxide Superleggera Edition |
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valvecovergasket Samba Member
Joined: October 10, 2018 Posts: 1491 Location: pnw
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Posted: Fri Apr 16, 2021 7:59 am Post subject: Re: Hard brake line replacement: what size line and fittings? |
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i would look for one without wire, that stuff is really really tough to work with when it has the support wire _________________ MegaSquirt resource - SpitfireEFI.com
gone, but not forgotten: '83 tdi westy - swap thread |
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4Gears4Tires Samba Member
Joined: October 08, 2018 Posts: 3019 Location: MD
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Posted: Fri Apr 16, 2021 8:00 am Post subject: Re: Hard brake line replacement: what size line and fittings? |
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But support wire really boosts the appeal of things. _________________ '87 Syncro
Ferric Oxyhydroxide Superleggera Edition |
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Thoragaverung Samba Member
Joined: September 15, 2018 Posts: 81 Location: Saint Paul
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Posted: Fri Apr 16, 2021 9:48 am Post subject: Re: Hard brake line replacement: what size line and fittings? |
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I thought about running hose the entire length but this is a cooling system, right? I was thinking metal tube would add some cooling capacity I'd like to have. Maybe throw some big heat sinks ofn there also. _________________ Happy to help, but my advice comes with no guarantees. Use at own risk. |
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MarkWard Samba Member
Joined: February 09, 2005 Posts: 17114 Location: Retired South Florida
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Posted: Fri Apr 16, 2021 9:54 am Post subject: Re: Hard brake line replacement: what size line and fittings? |
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The stock vanagon cooling system is more than adequate. I don't think you need to get carried away improving on it. _________________ ☮️ |
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valvecovergasket Samba Member
Joined: October 10, 2018 Posts: 1491 Location: pnw
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Posted: Fri Apr 16, 2021 10:09 am Post subject: Re: Hard brake line replacement: what size line and fittings? |
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Thoragaverung wrote: |
I was thinking metal tube would add some cooling capacity I'd like to have. Maybe throw some big heat sinks ofn there also. |
100% not necessary _________________ MegaSquirt resource - SpitfireEFI.com
gone, but not forgotten: '83 tdi westy - swap thread |
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4Gears4Tires Samba Member
Joined: October 08, 2018 Posts: 3019 Location: MD
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Posted: Fri Apr 16, 2021 11:33 am Post subject: Re: Hard brake line replacement: what size line and fittings? |
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Thoragaverung wrote: |
I was thinking metal tube would add some cooling capacity I'd like to have. |
It definitely does add cooling capacity and it is definitely not needed. My radiator stays cool to the touch most of the time. 85F. That is not an overtaxed cooling system. The cooling issues the vanagon has are not related to the size of the radiator/cooling capacity. _________________ '87 Syncro
Ferric Oxyhydroxide Superleggera Edition |
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Thoragaverung Samba Member
Joined: September 15, 2018 Posts: 81 Location: Saint Paul
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Posted: Fri Apr 16, 2021 12:15 pm Post subject: Re: Hard brake line replacement: what size line and fittings? |
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Important point: Putting a Subaru engine in there next summer (assumes I buy this blessed car this summer). this is the summer I rehab and prepare the chassis.
Additional cooling capacity: needed. _________________ Happy to help, but my advice comes with no guarantees. Use at own risk. |
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MarkWard Samba Member
Joined: February 09, 2005 Posts: 17114 Location: Retired South Florida
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Posted: Fri Apr 16, 2021 12:25 pm Post subject: Re: Hard brake line replacement: what size line and fittings? |
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You’d actually need to calculate BTUs to determine the cooling requirements, but there are 6 cylinder Subaru and turbo 1.8s happy behind the stock cooling system. Colder is also not always better. _________________ ☮️ |
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valvecovergasket Samba Member
Joined: October 10, 2018 Posts: 1491 Location: pnw
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Posted: Fri Apr 16, 2021 12:34 pm Post subject: Re: Hard brake line replacement: what size line and fittings? |
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Thoragaverung wrote: |
Additional cooling capacity: needed. |
youd definitely be the first! _________________ MegaSquirt resource - SpitfireEFI.com
gone, but not forgotten: '83 tdi westy - swap thread |
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Thoragaverung Samba Member
Joined: September 15, 2018 Posts: 81 Location: Saint Paul
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Posted: Fri Apr 16, 2021 12:40 pm Post subject: Re: Hard brake line replacement: what size line and fittings? |
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VW 80 HP engine - 3392 BTUs/minute
Subaru 170 HP engine 7208 BTUs/minute _________________ Happy to help, but my advice comes with no guarantees. Use at own risk. |
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MarkWard Samba Member
Joined: February 09, 2005 Posts: 17114 Location: Retired South Florida
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Posted: Fri Apr 16, 2021 1:29 pm Post subject: Re: Hard brake line replacement: what size line and fittings? |
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Your probably right. 4 gallons of circulating coolant likely won’t be enough for that 170 HP. _________________ ☮️ |
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Thoragaverung Samba Member
Joined: September 15, 2018 Posts: 81 Location: Saint Paul
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Posted: Fri Apr 16, 2021 2:35 pm Post subject: Re: Hard brake line replacement: what size line and fittings? |
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LOL _________________ Happy to help, but my advice comes with no guarantees. Use at own risk. |
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revolution337 Samba Member
Joined: May 23, 2009 Posts: 372 Location: Pennsylvania
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Posted: Tue Apr 20, 2021 11:46 am Post subject: Re: Hard brake line replacement: what size line and fittings? |
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In regards to using marine rubber hose in lieu of the stainless pipes, this is the product I used for my aircooled to watercooled swap. Was about $200 shipped to my door for a 50 foot section. Easy to work with, nice quality, I am very happy with the results.
Gates Green Stripe Heater Hose, product # 28445
https://www.gates.com/us/en/fluid-power/engine-hos...04411.html _________________ 1982 Westfalia AEB 1.8t
2017 VW Golf Sportwagen
2001 Audi A4 4.2 V8 swapped
2000 BMW Z3 roadster
-Mark |
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