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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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Rusty brake-line (hard line)Views : 4772 Replies : 28Users Viewing This Thread : |
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Apr 19th, 2016, 15:02 | #1 |
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Rusty brake-line (hard line)
Morning gang,
Well all this time I've been thinking that my hard brake lines are in great shape. I've assumed this to be the case because the lines under the car look fantastic. However, yesterday I popped off the access panel where the fuel filter is located (so that I could replace my handbrake cable) and I found some pretty advanced rust on the outer-most rear brake line. I was not able to scrape any of it off for further inspection but it doesn't look great. Below are two pics that give you a good appreciation for what I was seeing. Question #1: What's the "common" practice around replacing these? Replace the whole thing, cut a new piece in? Do I really need to go with a ?double-flare? connection or can I slam a compression piece in at both ends of the piece I'm cutting out? I of course want to do things safely but not "dealership safe," if you know what I mean. Question #2: What are the two other lines next to the two brake lines? They are slightly thicker and have some corrosion on them but not a ton. Cheers
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2003 V40 1.9T B4204T4, 197,000miles (sold but alive!), 2004 S60 2.5T, 160,000miles, 2010 V70 3.2, 125,000miles, 2002 V70XC 2.4, 175,000miles Click here for my x40 and V70 P3 repair guides |
Apr 19th, 2016, 15:59 | #2 |
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I would splice a new length in. I have successfully done it by using a male and female union with one double flair and one single. I have also used a connecting piece with 2 female threads and 2 male connectors with double flares on the pipe.
This was the reason I baught a draper hand flareing tool so that I could flare pipes in situe on the cars. Paul. |
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Apr 19th, 2016, 17:32 | #3 |
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Umm! Looks like a spot or two of Iron Oxide alright!
If you are a long term player, use Copper pipes and replace the lot without joins, but if that is too much work or expense, then do a cut and splice job using steel lines: https://www.youtube.com/watch?v=fL7BQKPhV2k
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2003 V40 1.9TD Mods: Scratches, bent bumpers, raised REAR mats & internal mud guards. SHELL ULTRA 5/40 & LIQUI MOLY CERATEC. Everyone should DYOR (Do Your Own Research) Last edited by skyship007; Apr 19th, 2016 at 17:39. |
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Apr 19th, 2016, 20:58 | #4 |
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The two larger diameter pipes are fuel lines. You have found the hidden spot where the rear brake pipes always corrode.
I replaced mine last year with Kunifer pipes from the front bulkhead all the way to the rear - single lengths. I dropped the tank and found corrosion on the underside of the rear seat pan - above the tank - so treated that as well. Attachment shows new pipes fitted before replacing fuel tank. |
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Apr 20th, 2016, 13:35 | #5 | |
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Quote:
When you say "from the front bulkhead" did you splice in at that point or do you mean that you replaced the whole line?
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2003 V40 1.9T B4204T4, 197,000miles (sold but alive!), 2004 S60 2.5T, 160,000miles, 2010 V70 3.2, 125,000miles, 2002 V70XC 2.4, 175,000miles Click here for my x40 and V70 P3 repair guides |
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Apr 20th, 2016, 16:13 | #6 | |
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Quote:
On the bulk head - nearside - is a union where the pipes come down from the master cylinder and then the rear pipes join. I undid the rear pipes at that union and replaced them in one length. To be honest the pipes had not corroded where they run along underneath the body, so the pipes could have been cut off by the tank and just the rear sections replaced. however, with the tank removed they might just as well be replaced from the front. I used the old pipes as a pattern and formed the new ones to fit and then tweeked them once on the car. piccie attached. Yes, I do have a four post lift so working under the car is easy. |
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