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Author Topic:   STIFF BRAKE PEDAL
DirtDogg
Dirt Full Roller

Total posts: 38
posted January 19, 2005 10:41 PM  
I PUT MY NEW CAR TOGETHER WITH DUAL MASTER CYLINDER 7/8 AND 1 INCH RAN 3/16 BRAKES LINES STEAL AND THE BRAKE PEDAL IS REALLY FIRM ALMOST NO MOVEMENT AND THE BRAKES STINK WILL HARDLY SLOW THE CAR ANY TRICKS OR PROBLEMS YOU GUYS RAN ACROSS. THE BRAKE LINES GO STRAIGHT TO THE CALIPERS WITH A T IN THE FRONT AND TO THE DRUMS IN THE REAR.

DirtDogg
Dirt Full Roller

Total posts: 38
posted January 19, 2005 10:43 PM  
I FORGOT TO SAY IT IS A METRIC MONTE.
STOCK BRAKE PARTS

Gene
Dirt Freak

Total posts: 396
posted January 20, 2005 02:41 AM  
1)You gotta have some flex lines somewhere.
2) there must be some free play between the pedal and M/C piston

BREEZE44
Dirt Roller

Total posts: 10
posted January 20, 2005 08:14 AM  
do you run gages?

iowatoolman
Dirt Freak

Total posts: 369
posted January 20, 2005 03:32 PM  
i had that problem once when i first put it together it was air in the line. bleed the ***** out of it. that was what i did and it fixed the problem

drive hard or drive home

DirtDogg
Dirt Full Roller

Total posts: 38
posted January 20, 2005 09:13 PM  
No we dont run gauges and the only flex line is the rubber line to the caliper, we have bled the s>>> out of it , i was wondering if the hose or caliper could have a blockage in there some where

racin78p
Dirt Freak

Total posts: 333
posted January 21, 2005 12:07 AM  
Just a thought. I had sort of the same problem and it was air in the lines. Found out that one of the rear lines (where we had a looping upward bend) was retaining an air bubble or two. Make sure you are starting with the line that is the farthest from the masters, then the next farthest and so on. You WILL trap air if you bleed the lines out of order. Just a thought.

------------------
racin78p
if it ain't fun, then don't run

iowatoolman
Dirt Freak

Total posts: 369
posted January 21, 2005 09:32 AM  
i opened all the lines to gravity bleed since the master is higher than the brakes then slowly pushed down on the pedal and kept the master full of fluid jsut keep doing that to get the air bubbles out but you need 3-5 ppl to help so you don't get more air in than you push out LOL

drive hard or drive home

Hoosier1919
Dirt Roller

Total posts: 14
posted January 21, 2005 05:44 PM  
Why would someone want to run SS braided lines too the calipers then the stock rubber hoses. Is some advantage running the S.S braided lines

[This message has been edited by Hoosier1919 (edited January 21, 2005).]

iowatoolman
Dirt Freak

Total posts: 369
posted January 21, 2005 10:29 PM  
ss don't get cut or anything happen to them as easy as the rubber as well as some guys say that the ss improves brake pedal feel

drive hard or drive home

CHRIS ELLIS
Dirt Roller

Total posts: 18
posted January 22, 2005 09:27 PM  
i run into the same problem with the same setup and it did not have the right pedal ratio if you are using stock pedals remove them and drill a new hole for the push rod pin about 1" higer and if that dosent fix it your master cyl size is to large smaller bore =softer pedal or you can use large bore cheater calipers seen a few sets on e-bay last week. cant remember what under?

akadirtracer7
Dirt Freak

Total posts: 217
posted January 23, 2005 07:06 AM  
take your stock rubbber hoses and have somebody push the brake pedal and feel the hose expand slightly thats one reason you don't want stock, and colapsing inside which might be your problem,and durability.Air in the system should make a soft pedal.They also won't feel like power brakes if thats what your expecting. I ran dual 1" and had good brakes with no valves on it.If you have the original or old rubber i'd get rid of it.If thats not the problem you can change the leverage on yuor pedal as someone else said.Have seen a few chevy trucks that had to small of a hole in brass fittings on the hoses which can reduce braking ability.

[This message has been edited by akadirtracer7 (edited January 23, 2005).]

    

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