I had bought a 87 Fiero GT that Someone had replaced the brake LINE from the master cylinder To the Brass junktion Block at the right rear wheel .. they cobbled togethter about 5 pieces of line with connectore AND at the master cylinder, ther are 4 different ADAPTERS , And at the distribution block at the rear there are 2 ill fitting adapters. also, they used 3/16 line instead of 1/4" line. What I need to kno is : what size are the threaded fittings on the ends of the lines supposed to be ??? it appears to be 2 different thread sizes from the factory. I'd like to be able to go into napa & just ask for 12 FT of 1/4" brake line with the correct ends. But WHAT IS The CORRECT SIZE ? ? Thanks

sorry, not from the master cyl, FROM THE PROPORTIONING VALVE to the rear "T" fitting at the RR wheel. What size fittings ?? Thanks

The rear fitting on my '88 at the combination valve is 14mm X 1.5mm.
I'm not certain but I believe the rear line is 6mm.

bump

I also need this info.

NOW.... HAS ANYONE got A LINE FROM THE PROP VALVE tO THE REAR "T" TO SELL ?? ?
I've tried every source in town for NEW, now USED. Please help ! Thanks

lol, does anyone have 2 of them?

You're best bet is to go to the parts store and buy a roll of brake line, they come in like 20' rolls. Much safer than splicing and pieceing. You'll need the fittings and a flaring tool too.

THATS THE PROBLEM, no one HAS the fittings!

The Fiero Store sells the line you are looking for.

Id just about guarentee the local advance does, if they dont, buy a short piece of line with the right fittings and just cut them off. You only need two, so just a 12" piece would have the ones you need. Now, if its bubble flare, you might be better off just cutting the 12" piece, putting a standard flare on the end, and coupling that to the line, it would be two more fittings, but easier.

I've spent about 4 hours in 2 different advance stores, 2 auto zones, 1 NAPA. no ones got them & can't get them. I don't see ANY steel lines in the fierostore, only steel braided hoses.

quote Originally posted by Lou6t4gto: I've spent about 4 hours in 2 different advance stores, 2 auto zones, 1 NAPA. no ones got them & can't get them. I don't see ANY steel lines in the fierostore, only steel braided hoses.

http://www.fierostore.com/P...rowse.aspx?d=378&p=1 Part #56002

Call them and see if they will sell you just the line you need.

Our combination metric/SAE, double flare/bubble flare brake lines are a pain in the ass. They are what is stopping me from easily doing what I want with my brake system.

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Lou64gto, since I'm replacing the same line, I will also be on the hunt for the same fittings as you. If i'm lucky and find them, do you want me to pick up a couple extra and mail them out?

The first thing I do when I buy another Fiero is to order the Stainless Steel brake line kit from the Fiero Store. The brake lines are not difficult to change, a car as old as a Fiero is due for brakes lines anyway, the Stainless Steel lines will outlast the car and I then have the secure feeling that I will not rupture a brake line if I have to stomp the brakes.

Don't complain about the cost - it's the best money you can spend on your Fiero!

I also put S/S braided hoses on as well, but that's been a controversial subject on PFF, so I'll limit my comments to the S/S brake lines.

DO IT!

Let ya know tomorrow. I MAY have located one. (maybe not) Is it MANDATORY that it has the "BUBBLE FLARE" or is a reg flare workable ? Thanks

you will need the bubble flare for the fitting going into the prop valve. it's not hard to make, the first step to a double flare makes the bubble flare.

quote Originally posted by Lou6t4gto: Let ya know tomorrow. I MAY have located one. (maybe not) Is it MANDATORY that it has the "BUBBLE FLARE" or is a reg flare workable ? Thanks

It is "mandatory" that your flare match your fitting and your fittings mate to each other correctly.

Here are some how to pages:
http://www.classictrucks.co...ne_basics/index.html
http://www.stu-offroad.com/...n/flaretool/ft-1.htm
more search results

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Page 7 of new catalogue at the bottom of "Brake Hose" header for the different model years.

84 - 56008
85 - 87 56002
88 56009

They are well worth the money.

found the fittings on ebay...

http://cgi.ebay.com/ebaymot...6QQitemZ370072917147

the stock line is actually 6mm and not 1/4" but you can just drill the center of the fitting out a bit to fit the 1/4" line you already have.

I had the same problem on the 88.... I just ordered that line from Inline Tube. It was worth it. I then used off the shelf line for the smaller lines, they had the correct ends.

J.

quote Originally posted by olejoedad: The first thing I do when I buy another Fiero is to order the Stainless Steel brake line kit from the Fiero Store. The brake lines are not difficult to change, a car as old as a Fiero is due for brakes lines anyway, the Stainless Steel lines will outlast the car and I then have the secure feeling that I will not rupture a brake line if I have to stomp the brakes. Don't complain about the cost - it's the best money you can spend on your Fiero! I also put S/S braided hoses on as well, but that's been a controversial subject on PFF, so I'll limit my comments to the S/S brake lines. DO IT!

I agree with this statement whole-heartedly, but when you're in a pinch and need the repair done right away, it doesn't quite work to your favor. I plan on a set for my 87 F355 kitted car, but as for my 86 notch, it's getting the quickest and cheapest route.

well, how about one of you guys thats DID spend $175 on stainless lines send me your old ones ! I'm not going to drop $175 for brakelines on a $400 car.

OK, went to the wrecking yard, GOT A PERFECT RUST FREE ORIGINAL FOR $3. !! Took all the metal lines & prop valve for $5.

i had the same problem, no one around here had the metric fittings i needed for my fiero. so i went with a standard t-block, 1/4in. inlet and the oulets are 3/16in. the new block took a regular flare instead of double. it works fine

SO YOU USED A "t" WITH 3/16 OUTLETS & 1/4" INLLET. what did you do to hook up the 1/4" line to the proportioning valve? & to hook the non metric 3/16 line to the calipers ?

i had a hole in the line a couple inches behing the stock t, i destroyed the 14 mm inlet fitting getting it out. i cut the inlet and two outlets right behind the stock fittings. then i put a 1/4in. fitting on the inlet line and two 3/16in. fittings on the outlet lines, got a t for the standard fittings and its done. the only things i changed were the fittings on the inlet and oulet of the t, and got a standard t. yea it might sound rigged but i made it work nicely

quote Originally posted by Genopsyde: found the fittings on ebay... http://cgi.ebay.com/ebaymot...6QQitemZ370072917147 the stock line is actually 6mm and not 1/4" but you can just drill the center of the fitting out a bit to fit the 1/4" line you already have.

The ones on ebay look right but may be standard metric tube nuts (invert flare). The Fiero tube nuts are bubble flare:



6 mm brake line is sold by NAPA and others. 3/16” line is considered to be the same as 4.75 mm.

[This message has been edited by spark1 (edited 10-29-2008).]

NAPA here has neither 6 mm line OR ANY METRIC fittings !

edit: The line nuts on the above (12 - 1) are the wrong size for the Fiero (14 - 1.5).
Parts America has the same lines and also some made by Carlson. Bulk hose too.



Fiero was again ahead of it’s time. GM is using European (DIN/ISO) brake lines on new cars and trucks.

[This message has been edited by spark1 (edited 10-30-2008).]

quote Originally posted by fordmuddin27: i had the same problem, no one around here had the metric fittings i needed for my fiero. so i went with a standard t-block, 1/4in. inlet and the oulets are 3/16in. the new block took a regular flare instead of double. it works fine

The single flare is a serious potential failure point, unless you are talking about the 37* AN flare & AN fitting.

Here is an O.K. Brake Line/Fitting FAQ: http://www.fedhillusa.com/?page=tech2#6
Here is a good how to for making the double flare: http://www.pharmacy.arizona...TCS/DoubleFlare.html

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Is this combo valve diagram (88) accurate? Corrections please.

On my '88 these are the measurements. The changes are in red:


edit:
BTW where did you find such a good picture of the combo valve?

[This message has been edited by Primaris (edited 11-03-2008).]

I have never done brakes before i had a caliper boot tear at work so i pulled the caliper flattened the line for about 6 inches secured it and drove to the parts store to get the stuff i needed. fixed it and then waited for all my new brake parts to arrive. I ordered them two days before the piston boot tore. now i have new brakes all the way around with new lines. btw way three wheel brakes are kinda scary.

you went through all that for a TORN BOOT ?! the BOOT is a DUST boot, it does not affect how the piston seals or how the brakes work. it only keep the dirt out. well, at least your brakes are new now.

quote Originally posted by Primaris: edit: BTW where did you find such a good picture of the combo valve?

The picture started life like this:




Found at: http://aplsweb.com/Topics/Brakes.htm

I just chopped it up and moved things around in Paint.

edit: Thanks for the corrections!

[This message has been edited by spark1 (edited 11-03-2008).]