Brake line degradation - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

so26 · 05-14-2013, 07:56 PM

I was under my FR-S today and notice that a portion of the rear brake line has degradation and a couple of the fittings have cracks in them. Has anyone else noticed this? I guess this means a trip to the dealer

BTW the car has 16kmi on it.

Sargy · 05-14-2013, 08:04 PM

hmmm...

jshadeck · 05-14-2013, 08:08 PM

Looks like something got on them and ate away the outside? Not sure

OrbitalEllipses · 05-14-2013, 08:09 PM

Is that an e-brake cable? That doesn't look like a hydraulic brake line; I replaced all four this past weekend.

so26 · 05-14-2013, 08:12 PM

Quote:

Originally Posted by OrbitalEllipses

Is that an e-brake cable? That doesn't look like a hydraulic brake line; I replaced all four this past weekend.

Not sure, they do seem to be hydraulic lines though ... maybe someone else knows

Carlitoz3 · 05-14-2013, 08:15 PM

Doesn't look pretty. Is this where the under panels would come handy?

Draco-REX · 05-14-2013, 08:55 PM

Picture one is not brake lines. Those are fuel lines. The fittings pictured are quick-disconnects which aren't used in brake lines for safety reasons. Additionally, except for the lengths between the body and knuckles, brake lines are metal.

The diameters of the lines in the second pictures are too large for brake lines as well.

There's a good amount of undercoating under the car. I think the overspray cracked on the flexible lines and let water get underneath. See if you can remove some of the overspray around the damaged areas with a fingernail or something that won't damage the fuel lines to see if the damage your're seeing is really in the lines.

so26 · 05-14-2013, 09:29 PM

Quote:

Originally Posted by Draco-REX

Picture one is not brake lines. Those are fuel lines. ...

Hmmm ... I thought there was only one fuel line coming from the pump?

Draco-REX · 05-14-2013, 09:47 PM

Quote:

Originally Posted by so26

Hmmm ... I thought there was only one fuel line coming from the pump?

There's some system to move fuel from one side of the saddle to the other. And I would say there was a return line, but I think I've read that this is a return-less system. (Not sure how the FPR bleeds off excess pump pressure...) There is also the Evaporative Emissions system which will have its own lines.

Those connectors are only used for fuel and coolant, and there's no coolant at the back end of this car.

05-14-2013, 07:56 PM	#1
so26 Senior Member Join Date: Aug 2012 Drives: Raven FR-S 6MT Location: Garden state Posts: 181 Thanks: 70 Thanked 54 Times in 22 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Brake line degradation I was under my FR-S today and notice that a portion of the rear brake line has degradation and a couple of the fittings have cracks in them. Has anyone else noticed this? I guess this means a trip to the dealer BTW the car has 16kmi on it.

05-14-2013, 08:04 PM	#2
Sargy Long Distance Driver Join Date: Aug 2012 Drives: 2013 Scion FR-S Location: Northern VA Posts: 779 Thanks: 565 Thanked 312 Times in 207 Posts Mentioned: 43 Post(s) Tagged: 3 Thread(s)	hmmm... __________________ My TRD transformation build: http://www.ft86club.com/forums/showthread.php?t=38648

05-14-2013, 08:08 PM	#3
jshadeck Senior Member Join Date: Nov 2012 Drives: 2013 Scion FR-S Whiteout 6MT Location: carlisle, pa Posts: 773 Thanks: 3 Thanked 221 Times in 163 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	Looks like something got on them and ate away the outside? Not sure __________________

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05-14-2013, 08:09 PM	#4
OrbitalEllipses Banned Join Date: Jan 2012 Drives: Attitude Location: MD Posts: 10,046 Thanks: 884 Thanked 4,890 Times in 2,903 Posts Mentioned: 123 Post(s) Tagged: 4 Thread(s)	Is that an e-brake cable? That doesn't look like a hydraulic brake line; I replaced all four this past weekend.

05-14-2013, 08:15 PM	#6
Carlitoz3 Senior Member Join Date: Apr 2013 Drives: 2013 MT Asphalt FRS Location: Baldwin Park, CA Posts: 1,051 Thanks: 237 Thanked 235 Times in 157 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Doesn't look pretty. Is this where the under panels would come handy?

05-14-2013, 08:55 PM	#7
Draco-REX Corner Junkie Join Date: Feb 2012 Drives: 13 BRZ, 11 STI, 99 RS Location: Ohio Posts: 2,908 Thanks: 129 Thanked 1,521 Times in 702 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	Picture one is not brake lines. Those are fuel lines. The fittings pictured are quick-disconnects which aren't used in brake lines for safety reasons. Additionally, except for the lengths between the body and knuckles, brake lines are metal. The diameters of the lines in the second pictures are too large for brake lines as well. There's a good amount of undercoating under the car. I think the overspray cracked on the flexible lines and let water get underneath. See if you can remove some of the overspray around the damaged areas with a fingernail or something that won't damage the fuel lines to see if the damage your're seeing is really in the lines.

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