SR POWER 89 S13 240SX BRAKE HARD PEDAL!

[9095240SXDUCK]

SR POWER 89 S13 240SX BRAKE HARD PEDAL! Ok tonight I went to test drive a 89 S13 240SX HB with sr20det red top. The only thing that is wrong is that. The brake is so hard that even if I put both of my feet and lift my A%$ up to put my weight on the pedal. The Pedal wont go down more than 2-3 inch!!! Also it does not stop or next to no brake!

Need Help ASAP so I know should I get the car or not.

Give me your best guess!

Thanks

[180fan]

master I'd guess. If it there were a cinch at the lines, you'd still have braking power at the other wheels...dunno could also be your booster but the inconsistant thing sounds like a master.

[xekushnr]

if its a good price, buy it and fix the problem. buy an fsm and get studying. i suggest you trailer the car home though.

[toptechracing]

My guess is vacuum booster, no vacuum to it. Or check valve installed backwards.... You say you have a hard pedal and no stop not a low pedal and crappy brakes right?

[9095240SXDUCK]

It feels like I am pushing a rock with both of my feet and still no stoping. And like i said before the pedal is so hard that it only go down max is 3 inch!

5-0mph 15-20 feet

How much do your think it would cost me to put a new master on?

thanks

[9095240SXDUCK]

ALSO DOES IT MATTER THAT HE IS USING THE STOCK 89 BRAKE MASTER AND NOT THE SR BRAKE MASTER

[toptechracing]

Nope........DO you have the vacuum line from the booster hooked up to a hard vacuum source(Hard=vacuum all the time)?

[9095240SXDUCK]

I am not sure. would you please give me a better detil so I know! its not my car yet!

[toptechracing]

Vacuum hose running from the side of power booster......about 8mm id hose needs to connect to engine vacuum source......otherwise no power brakes. push your *** off and the car wont stop or stop very well...Also may have a check valve in the same hose that is a oneway valve.....if backwards no vacuum to the booster.

[9095240SXDUCK]

Ok

I just Learn the Power Steering is not hook up and the A/C is not hook up!

Does any of the 2 matter?

[s13EastTN]

only if that matters to you, do you want A/c? Do you want PS? The brake booster hose is a vavuum line going from the big black, circulare(sp?) steering thing that is bolted onto your fire wall. It should go from the right side of the engine bay, connect to something else ont he fireway, then go to the left side of the engine and connect to a large inlet on the bottom of the intake manifold. It's pretty easy to find.

[9095240SXDUCK]

Oh ok

Because I have people that told me. I need P/S for the P/B to work.

But so far I got there is a possibity is either brake master, or Brake booster, or V- Line is not conneted right!

So nothing major problem!
Modified by 9095240SXDUCK at 8:19 PM 9/9/2004

[toptechracing]

PS has nothing to do with PB. It sound though like this a major project and if you are that unfamiliar with the mechanics of this car you should seek professional help.

[ariesoner]

why do you have two threads going on the same subject? Check your other thread I posted some pics for you.

[ariesoner]

http://nicoclub.com/zerothread?id=81972

[AZhitman]

Good work ariesoner!

Check out the newbie hooking up peeps!!!

[9095240SXDUCK]

Thanks for the pics

It is great help!

The Reason why I have 2 tread going on the same time is because some people does not vist SR form! but know about SR20DET!

[yellow_jacket]

If this guy couldn't even figure out he had no vacuum assist before he sold the car I would seriously question how well the install was done and what other gremlins are going to pop up in the future. Especially with the wiring.

[9095240SXDUCK]

He said he know it need a new brake master

[yellow_jacket]

A master cylinder will not cause an overly hard pedal. This is a brake booster or vacuum problem.

I refer back to my previous post.

[9095240SXDUCK]

Up DateI just brought the car for 3700 so now I am going to use everyones idea to fix this baby!

ALSO I WOULD LIKE TO THANK EVERYONE FOR THEIR INFO ON THIS.

if anyone have any more info please post it ASAP.

[9095240SXDUCK]

Ok

I just check the vacuum line. One of the one way valve was backwards. But after I put it back the right way. It still feel very hard but it alittle better then before!

[toptechracing]

One of the one way valve was backwards.

Should only be one check valve in the line..

[9095240SXDUCK]

You sure?

Because their is 2 one that is on a braket that is bolt onto the fire wall and another one from the line comming out of the engine!

[toptechracing]

You sure?

one that is on a braket that is bolt onto the fire wall

The only one way valve I remember is the one on the firewall.

[9095240SXDUCK]

Hmmmmm

I will look into this!