need brake help

[shadetree]

88 jeep yj , dana 44 front 14 bolt rear , disc brakes all around, new master cyl new booster all new calipers new braided lines front new oem rubber on rears , NO PEDAL, u can brake torque it u can run it up to speed and slide the 4 tires in gravel but no pedal it is right at floor , I've tried two types of air power bleeders , a handheld vaccum pump bleeder , the ole have a Buddy pump and bleed . what else can i do ? about to loose my cool on this thing . everybodys out wheeling and I'm here BLEEDIN.

 

[1993toy]

What master cylinder are you running?

 

[Elliott]

Did you bench bleed the master cylinder before putting it on?

 

[shadetree]

oem replacement master cyl for the jeep , output specs should be fine for the application.
yes it was bench bled., thanks

 

[Humpy]

Make sure the rod from pedal to cyl is adjusted right... I have seen that cause weird **** b4

 

[krackem]

I've have 2 brake master cylinders and 1 clutch master cylinder be bad right out of the box man could be your problem been mine before

 

[TBItoy]

if you're still running the stock jeep master cylinder, then it's not moving enough fluid to give you much pedal (taking too much pedal travel to apply the brakes).

You need a bigger master cylinder if you want a firmer pedal.

 

[billstoy]

did you install residule valves for disk brake pressure, wilwoods i think its 2 lb for disks or 4 lb for drums install them close to the master to keep pistons from moving back in to far

 

[shadetree]

what master cyl do u recomend ? do residual valves installed just modified the oem proportion valve to brake at 50/50 rate instead of factory set 60/40.

 

[1993toy]

I know a lot Jeep guys use a Ford E350 master cylinder.

http://www.jeepaholics.com/support/Topic657042.aspx

 

[shadetree]

thanks ordered master cyl today will let u know , really appreciate all the help
after this i really miss wheelin in the lil cherokee on 32's , just skinny pedal and woo pow , happy happy happy

 

[crawler 129]

I run a 1 ton master cylinder and no proportion valve disk all the way around never had a problem.

 

[billstoy]

residule valves help keep light pressure on the pistons and lines, this will lessen pedal travel make for strong pedal up top . if you use a stock proporshing valve it should have resudiule valves built in ,, Sorry my spelling sucks.