more brake questions

[skyshark186]

My brakes have been sloppy since i bought my truck. I put a new booster on, tightened the brakes, checked for visible leaks, and bled the crap out of it. I noticed yesterday that a red light with the inscripition brakes underneath(couldnt tell if its oem or not) about an inch and a half to two inches from the mounting screw on the guage display lights up every time i hit the brakes after i start it, goes away after a few minutes then lights up when im stopped if i hit the brakes hard. But it goes away if i relieve a small amount of pressure. Any ideas? Ive got all weekend but would like to get em fixed right.

 

[Pighead]

I don't know what year or model LandCruiser you have, but...
Rumor has it that if your brake light comes on when you hit the brake pedal, you're going to crash.
There are two senders on the bottom of my brake master cylinder, I hear that they are low brake fluid senders.
I'd try a master cylinder re-build kit if I had all weekend.

Greg Dyche
Mixed pair of '74s

 

[skyshark186]

The PO said he rebuilt it just before he sold it to me. It has aisin caps and ive heard nothing but bad things about aisin. Anyone recommend a good new master?

 

[skyshark186]

Sorry its a 73 FJ40

 

[fytattoo]

the guy you bought it from probably didnt bench bleed the master before installing it

id try bleeding at the master before taking it all out and rebuilding it...it might go away...i always forget that step when im doing it....then i remeber the first time i cant get it to bleed right...you can sit there for ours and pump fluid out of the brakes but the air is stuck in the master

 

[skyshark186]

this aint your normal old car pumping. Its like three full strokes in the morning when the fluid is thicker, and four to six when it warms up. its something like arobics. Kinda scarry really. Anyone run a napa master? Spose i could rebuild mine but my napa guy just showed me a "rebuilt" aisin for 46 bucks. Hell if i know, you guys are smarter than me.

 

[zetasig]

Asians are the OEM toyota parts, They dont get much better than that... I would NOT rebuild the master. Your brakes are too important. CCOT sells a remanufactured one that I have not heard any bad things about.

I agree with bench bleeding it before turning any major wrenches on it.

You can bench bleed it attached to the booster. Just get two shorter brake lines and bleed it that way.