Lost my brakes this last week and over the weekend I took to finding out where the break is. Hard line going to the rear LSPV. I'm hoping one of you yota guru's can tell me the size of the Brake Line for a stock 94 4Runner. I'm just going to go to Advanced Auto Parts and buy some bulk line and re-Route them from behind the Gas Tank. So if anybody could throw me a bone here and let me know what the diameter of the brake line is and what size fittings I need, that way I can stop on the way home from work to pick up the supplies I need versus going home pulling the brake line and taking it in....thanks in advance for the help....

 

3/16th x 10 mm double inverted flare

 

The OEM hard lines are pretty durn cheap...

 

if only they sold them cheap here in Belize. i have to replace my brake lines to the rear beause the rust made them rotten. so i replace them with copper because that is all they have that wont rust

 

X2, plus they come with all the bends around the little nooks and the fittings are already on.

 

I hear ya on the price, but the actual install is the PITA that i'm trying to avoid. I was under there on Saturday, and moved the gas tank to see where the break is. I was just thinking it would be easier to re-route the brake lines to an easier place.

 

Oh man! You broke the main hard line coming back? that sucks! Is it the return or pressure line? If it is the return line it would probably be easier to remove it and swap in a brake proportion valve, eliminating the LPSV and return brake line completely.

 

I'm not sure which line is the pressure and which is the return. Of the two lines going back it is the one mounted lowest. any idea?

 

Yeah gotcha, I had the engine, tranny and the driveshafts out of the way when I did mine.

BTW a tranny jack works good for moving a gas tank over:

 

You might want to replace both rear lines at the same time. If one is rotten the other may not be far behind.

 

Already gonna happen.....I don't want to worry about this again....

 

Like I said...you might wanna look into doing that brake prop valve install....

Could be around the same price as that return line (which you wouldnt need anymore...I have not priced them out from toyota in a while)

 

Yeah braking is more important going... LOL. Especially on some trails:

 

Hey guys I got a question, I have the opportunity to get a SS braided hose made at a vendor of mine for a signifigantly reduced price. I was wondering if you think 10 feet would be enough to make it from the front distribution block (passenger side frame) to the LSPV in the rear. I think 10 feet would be plenty but just want to make sure you yotaguru's agree.....thanks for all the help guys.....

 

Sure but remember that a braided hose will not offer the same braking pressure as a hard line. I wouldnt do it. SS lines have Teflon hose on the inside that expands under braking pressure. This is fine for short distances. The SS braid helps with expansion but will not offer the same pressure as a hard line. I would expect a spongy feel to the brakes and decreased response time in braking (possible safety issue)

 

Yeah I started to go that route too. Even went so far as to buy the hose and fittings. As I was reading all the warnings about not being DOT approved and fitting install instructions looked far from fool proof...and the fact that I like to wheel on the edge of 1000ft cliffs, I got 2nd thoughts and decided to go with the OEM hard lines.

Here's some info I found on going that way at the time:
http://board.marlincrawler.com/index.php?topic=23361.0

 

Well I hear what you are saying, but the lines i'm gonna get are going to be pre-made at a local hose shop, they are DOT approved AND will have swivel ends on them.....i think i'm gonna give it a run.....

 

Yeah, that sounds better than the way I was looking at doing it.

 

Did you read this?

 

Sure did, and when I talked to my hose guy I asked him and he said that since the diameter is so small (3/16) the amount of flex is negligable and that is how they run the lines on a lot of the trucks they see in the shop...last longer and is way easier to run....and they use 1/4 hose.

And to be perfectly honest, i'm not a big off roader. This is my daily driver rig. I"m a big guy so the lift was more of a convenience thing.

I really appreciate your input cuz these are the things I like to hear about before I run into a problem later on down the line.

Any knowledge is good knowledge.....