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Flushing Brake System???

2K views 8 replies 3 participants last post by  woodcarver 
#1 ·
I just installed a Brake Proportioning Valve (courtesy of Tim Justice...Thanx) on my 1988 Zuk.
Before installing, the old brake fluid was drained off. However, after filling with fresh fluid,
bleeding the system and driving for a few days, the brand new fluid has turned dirty...
(not as dirty as the original fluid, but definitely very dirty.)

How do I "flush" my braking system so that my brake fluid stays reasonably clean??
(Brake fluid is cheap so I don't mind using as much as possible!)
Thanx,
Lee

LeeClark
1988 Suzuki Samurai
 
#2 ·
The only way I know of is to bleed them like crazy.

All Good Medicine,
Crow

Creator, everything we do leaves a track. May our tracks be ones we would want you to see and others to follow......

 
G
#3 ·
on the subjects of brakes, i just noticed that my brakes work better on the SECOND press... this is weird cuz ive never heard of it. Its too dark right now to check fluid lvl and all that, but im doin that first thing tomorrow.

what is causing this?

 
#4 ·
goot, is it a new thing, or been comin on slowly over time? i think if it were me, id check my front pads n rear shoes first thing.
BiLLy bOb


Do unto others as you want done to you!
If you pack it in, pack it out!
 
#6 ·
To the guy whose brakes are better on the second push, that means that there is AIR in your system! If you're planning to replace
pads and/or shoes, wait until that's done before bleeding... Otherwise, bleed away...
To the others... Thanx for the info on flushing my system...
Lee

LeeClark
1988 Suzuki Samurai
 
G
#7 ·
Your dirty brake fluid is always going to be there. There is a ton of detergent in brake fluid (hydraulic oil) and it is there to keep the system clean and functioning properly. You can bleed it till it runs clean but it is going to get dirty again. Brakes are a poorly sealed close loop hydraulic system and dirt just get in there.

As for goot. Your pads are bad. If you push the brake and they are spongy then you have air in the line. I don't know about everyone else but I go through real brakes like they are going out of style. I think it is because of the 33's.

"Where the land and my Zook meet, my spirit soars, my soul is alive, and my life has true meaning."
http://www.geocities.com/zuk_tonka/zuk.html
 
G
#8 ·
Your dirty brake fluid is always going to be there. There is a ton of detergent in brake fluid (hydraulic oil) and it is there to keep the system clean and functioning properly. You can bleed it till it runs clean but it is going to get dirty again. Brakes are a poorly sealed close loop hydraulic system and dirt just get in there.

As for goot. Your pads are bad. If you push the brake and they are spongy then you have air in the line. I don't know about everyone else but I go through real brakes like they are going out of style. I think it is because of the 33's.

"Where the land and my Zook meet, my spirit soars, my soul is alive, and my life has true meaning."
http://www.geocities.com/zuk_tonka/zuk.html
 
G
#9 ·
My Sami brakes were crap when I first bought it (it had sat undriven for about 3 years). A friend recommended flushing the system with rubbing alcohol then flushing that out with regular brake fluid. I did that and haven't had any problems...new pads/shoes and regrind didn't hurt neither. Good luck,
Mac

 
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