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Old 11-24-2017, 08:08 PM   #1
ldollahan
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2005 L-Series 3.0L Sedan
2002 SL1
Default Rear brake line replacement 2002 SL1

So one of the lines rusted through & popped a hole the other day coming home from work when I had to slam on the brakes to avoid a collision, (which I did avoid!).
I got everything unhooked today, but haven't pulled out the lines yet, ran out of daylight.

I go two new rubber lines to go to the wheels, & a roll of Brake Tubing - Universal Steel Hydraulic 3/16" from Napa.
Also got the nuts & they loaned me a flare kit.
My questions are - is one roll of 25' enough for both rear lines to the MC,
and the lines that are on there at about a foot from the end where they attach to the rubber lines at the back, the steel lines have what looks like a spring/wire wrapped around the outside of the line. The new line I have does not have that?


I've seen some threads on here that recommend the Nicopp, I can get that from Autozone here although it's more $. Would I be better off with that? Easier to bend?

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Old 11-24-2017, 08:57 PM   #2
Waiex191
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1999 SL2
Default Re: Rear brake line replacement 2002 SL1

The nicopp is awesome. Very easy to bend and work. From my experience one 25' roll is not enough to run both rear lines. I'll never buy steel lines again.

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Old 11-25-2017, 01:22 PM   #3
ldollahan
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2002 SL1
Default Re: Rear brake line replacement 2002 SL1

Ok, thanks, I picked up 2 25' rolls. I see that the flare nut at the MC for the drivers rear is a different size than the passenger?
Also, I read that the flare for these is a bubble flare, is that correct?
Will a standard rental flaring kit do that or do I need a special kit?

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Old 11-25-2017, 01:39 PM   #4
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Default Re: Rear brake line replacement 2002 SL1

Should be 3x M10x1.00 and 1x M12x1.00 fittings. ABS may have larger fittings... 1x M14xsomething and 3x M12x1.00.

A bubble flare is basically an unfinished double flare. You do everything for the double flare, but don't crimp it down very far so there's a "bubble" left on the inside to do the sealing. Yes, if you can get the proper dies for doing the proper bubble flare do so, but for some reason just like Metric vs SAE bolts bubble flare tools are hard to find and more expensive.

If you have a buddy with a hydraulic flaring tool I highly recommend borrowing it, but there's nothing wrong with using the "normal" hand flaring tool.

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Old 11-25-2017, 02:23 PM   #5
Waiex191
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Default Re: Rear brake line replacement 2002 SL1

I bought this flaring tool:
https://www.amazon.com/gp/aw/d/B0015...f=yo_pop_mb_pd
Worked great. I think I am destined to own every flaring tool known to man.

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Rebuilt at 204,067 September 2017
Engine, subframe, diff pin mod, brake lines, headliner, alternator, and so on!

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Old 11-25-2017, 05:41 PM   #6
ldollahan
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2002 SL1
Default Re: Rear brake line replacement 2002 SL1

Ok, I went to two stores today & both said they only have the fittings already on pre-made lines, but doing a search online shows they have them?!?
Time to go to a different store.
I'll do some practice flaring on the old line, it's been years since I've done it, and that was on natural gas lines with regular inverted flares.

No ideas on the spring like wire around the back end of the lines? I'm assuming it's to prevent rubbing around the rear suspension?

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Old 11-25-2017, 05:59 PM   #7
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Default Re: Rear brake line replacement 2002 SL1

I practiced on an old line also. Good idea, though it is easy to get right. Mostly I reused my flare nuts but had to replace a couple. Advanced Auto Parts had them, but they sold me a short premade line as it was cheaper. I just cut the new line and slid them off.

...
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'99 SL2, owned since new
5 speed manual
Rebuilt at 204,067 September 2017
Engine, subframe, diff pin mod, brake lines, headliner, alternator, and so on!

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Old 11-26-2017, 03:29 PM   #8
ldollahan
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2002 SL1
Default Re: Rear brake line replacement 2002 SL1

Ok, I have everything run, the only thing I'm not 100% certain on is the MC connections. I found diagrams from another thread that labels the MC as the 2 lower ports labeled 2 & 3 for the rear.
#2 (front port) on mine takes the M13 & I'm pretty sure that's for the left rear (drivers side).
This chart lists 3@ as the M10 and #3 as the M13 where mine is reversed.

I guess I just want to make sure that I'm hooking them up to the correct port.
I'm fairly certain that the front #2 (larger M13) port was for the drivers side & #3 was for the passenger, but the diagrams are making me doubt myself.
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Old 11-28-2017, 09:17 AM   #9
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Default Re: Rear brake line replacement 2002 SL1

I know the lines are already run but, better late than never... maybe this will help someone else in the future -

Stainless Brake Line Protector (Gravel Guard Spring)

http://www.amazon.com/gp/product/B01IRQXJDS/

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Old 11-28-2017, 09:59 AM   #10
Waiex191
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Default Re: Rear brake line replacement 2002 SL1

That is cool - but I didn't bother. I bet it is ok without it.

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'99 SL2, owned since new
5 speed manual
Rebuilt at 204,067 September 2017
Engine, subframe, diff pin mod, brake lines, headliner, alternator, and so on!

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Old 11-28-2017, 10:44 AM   #11
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Default Re: Rear brake line replacement 2002 SL1

It's definitely OK without it.

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