1999 v70 xc rear passenger hard brake line

Olivettibakebean · Post by **Olivettibakebean** » 02 Oct 2014, 00:57

So I got some braided hoses and was able to swap them all out other than the rear passenger one which is so rounded I didn't even bother trying to remove it.
Plan on replacing the line, I was told I have to drop the gas tank and rear diff to run a new line, is that true? From the look of this diagram
http://www.volvopartswebstore.com/showAssembly.aspx?ukey_product=1168759&ukey_assembly=241595
and what I've seen it looks like just the gas tank needs moving.
Anyone done this or know of a tutorial?
Any help would be really appreciated.

BTW I got a bubble flare tool and tried practicing on a scrap brake line from the same Volvo. The tool I got from ebay for $40 is junk, I'm guessing until you buy a hydraulic they all are. Hydraulic models I've seen won't fit in the gap I have

For any members wanting to risk the bubble flare tool here is a tutorial for front line repair.
https://www.matthewsvolvosite.com/forums ... p?p=328038

Olivettibakebean · Post by **Olivettibakebean** » 07 Oct 2014, 20:53

Guess I'm in this on my own.

Post by **scot850** » 07 Oct 2014, 23:18

Sorry no one has gotten back to you on this one. Sometimes no one is on who has suffered the problem before. I have not had to do any repairs to the lines on either of the AWD V70's I've owned, although one did have the rear line worked on prior to my ownership.

How much access room do you have? It's been a long time since I made up metal brake pipes, but we used basic pipe flare tools for the job. On a long pipe like this, we would cut the pipe if room was available and splice in a new length of pipe with a union piece to allow it to be made back to correct length. The secret we found was to take our time, and practice on a piece of scrap pipe first to narrow down the technique. If there is little pipe/access available, then the only option is to remove the rear axle and tank if I recall reading this in the past correctly. Perhaps on of the other guys may chip in who has done this before.

Sorry can't be more help.

Neil.

Post by **Ozark Lee** » 07 Oct 2014, 23:45

Volvo sells the lines but they come as a straight piece that is cut and flared with the new flare nuts. It has to be bent to shape and you need to use a bender to do it without kinking the line. I've only had to mess with them on my FWD cars so I'm not sure about having to take out the gas tank.

If you do need to remove the tank it might be a good time to preemptively replace the fuel pump.

...Lee

Olivettibakebean · Post by **Olivettibakebean** » 09 Oct 2014, 01:18

Thanks Scott, I planned on re-bubble flaring the pipe as there is a little room I hoped to use. I got an average priced tool $45, a piece of scrap pipe from the pick n pull and tried till the tool broke. Not once did I get close to screwing the head all the way down.
Ozark the pipes I've seen for sale are pre-bent but if a straight pipe was provided I maybe able to thread and bend it as I go.
Not had much time for further inspection but hope to have it up on jacks on Saturday, I get the feeling there is a way to do it without dropping the rear.

Post by **JimBee** » 09 Oct 2014, 19:05

I believe I've seen straight lengths of brake line tubing with ends flared and fittings at Carquest.

It was at Carquest that I learned the brake line fittings on the 850 (mine at least) are 7/16" SAE, not metric. I wanted to buy the partially open box wrench and was looking at the metric one when he clued me in.
Not sure if the threads are metric, but probably not.

Too bad Volvo didn't catch the robot that tightened in those rear passenger side fittings to get it off steroids.