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 marty_08
A.k.a.: Martin McRae
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| posted on July 6th, 2009 at 09:08 PM |
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Brake Reservoire Hoses
G'day everyone,
Each weekend brings me a step closer to the finish of the buggy rebuild!!!!
Quick question:
Is it ok to use new fuel hose to connect between the brake fluid reservoire and the master-cylinder?????
(i'm pretty sure this would be ok but just wanting to make sure there's not some crazy ingredient in brake fluid that corrodes only fuel hoses!!!!!!
)
What have others used??? This is a buggy so i'm unaware if there is a factory-type tubing/hose available - sorry.
Cheers,
Marty
 Gotta love a Buggy!!! |
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Thinker
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| posted on July 6th, 2009 at 09:20 PM |
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i am pritty sure maybe 95% that there is a specific hose that has a nylon liner (white) and it looks like fuel line on the outside OR you can buy
nylon air/oil line in all different colours but again not 100% sure how it stands up to brake fluid.
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 matberry
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| posted on July 6th, 2009 at 10:13 PM |
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MUST use the correct hose for brake fluid. The VW hose looks similar to the cloth covered fuel hose but blue in colour. Pretty exxy but available at a
good dub shop I believe.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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68AutoBug
A.k.a.: Lee Noonan
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| posted on July 6th, 2009 at 10:17 PM |
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| Quote: | Originally
posted by marty_08
G'day everyone,
Each weekend brings me a step closer to the finish of the buggy rebuild!!!!
Quick question:
Is it ok to use new fuel hose to connect between the brake fluid reservoire and the master-cylinder?????
(i'm pretty sure this would be ok but just wanting to make sure there's not some crazy ingredient in brake fluid that corrodes only fuel hoses!!!!!!
)
What have others used??? This is a buggy so i'm unaware if there is a factory-type tubing/hose available - sorry.
Cheers,
Marty
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Brake fluid is an odd liquid and needs the correct hose..
I wouldn't use anything but the correct blue hose....
available at all VW Shops....
Fuel etc... no worries...
but Brake fluid..... NO
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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marty_08
A.k.a.: Martin McRae
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| posted on July 6th, 2009 at 10:31 PM |
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Geez, thanks guys lucky i asked the question. Was very close to just throwing on some fuel line!!!!!
Will suss it out!!!!!
Marty
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VWCOOL
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| posted on July 6th, 2009 at 10:51 PM |
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I've had fuel hose in one of mine since 1991. No problems yet... the dramas I've had have *always* been with the OE VW 'blue' hose (but always
original fit, old, brittle stuff). Brake fluid is designed to very kind to all sorts of rubber seals and hoses
Pay your debts, CxxT
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matberry
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| posted on July 7th, 2009 at 09:08 AM |
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| Quote: | Originally
posted by VWCOOL
I've had fuel hose in one of mine since 1991. No problems yet... the dramas I've had have *always* been with the OE VW 'blue' hose (but always
original fit, old, brittle stuff). Brake fluid is designed to very kind to all sorts of rubber seals and hoses
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Bollocks
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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VWCOOL
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| posted on July 7th, 2009 at 09:23 AM |
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Come and have a look... I will be replacing them soon as part of a rebuild. But - no problems so far. Have i simply been lucky?
Pay your debts, CxxT
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matberry
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| posted on July 7th, 2009 at 12:19 PM |
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IMO I'd say you have been very lucky, although I'm not a rubber specialist, I have been involved id some rubber product engineering and know that
there are different rubber compounds for different jobs, and brake fluid has a very different range of requirements than say for fuel or oil. Using
fuel hose you are very likely to see the rubber degrade that can cause small fragments to block the internal ports in the master cylinder which could
easily cause brake failure.....NOT GOOD. You may notice when working on brake systems that you're advised to only use brake fluid or rubber grease
for lube. That is because brake component rubbers and seals DO NOT with stand hydrocarbons (oil based products) .
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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VWCOOL
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| posted on July 7th, 2009 at 06:24 PM |
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Solvent/fuel in brakes hoses is bad mmm-kay but brake fluid in solvent hoses seems fine
Pay your debts, CxxT
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marty_08
A.k.a.: Martin McRae
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| posted on July 7th, 2009 at 08:59 PM |
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Hey guys,
Would transmission hose be ok for this application???
Marty
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grumble
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| posted on July 7th, 2009 at 09:19 PM |
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I agree with matberrry only the correct brake hose should be used,I have seen fuel and high quality multi purpose hose used and in each case the fluid
seeps through the casing. Use the right hose and save yourself the heartache and expense. cheers les
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matberry
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| posted on July 7th, 2009 at 09:23 PM |
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You could test it by immerse a piece of hose in some brake fluid for a few years and see if it swells or perishes.
Sorry if I'm a pia
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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VWCOOL
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| posted on July 7th, 2009 at 10:49 PM |
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...the inside of mine has been in brake fluid since March 1991 
But in general, I agree - use the right product for the right task.
Pay your debts, CxxT
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marty_08
A.k.a.: Martin McRae
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| posted on July 12th, 2009 at 12:34 PM |
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Another quick question in keeping with the brake fluid theme:
Which is ok and What is the best fluid to use, DOT 3 or DOT 4???? (in a new dual circuit master cylinder system)
Marty
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grumble
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| posted on July 12th, 2009 at 05:32 PM |
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Dot 4 supersedes dot 3 in most cases but toyota currently specify dot 3 for most of their vehicles.
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marty_08
A.k.a.: Martin McRae
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| posted on July 12th, 2009 at 06:33 PM |
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I guess what i'm really asking is DOT 4 ok in a new VW type 1 master cylinder brake system???? 
Marty
Gotta love a Buggy!!! |
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