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Thread: Brakes 91 CRX SI

  1. 05-19-2006, 08:13 PM #1
    azkkr
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    Default Brakes 91 CRX SI

    I CHANGED THE MASTER CYLINDER AND BLEED THE BRAKES ON THE CAR. THE BRAKES FELT PERFECT UNTIL I CHANGED THE BOOSTER CHECK VALVE,NOW THE BRAKE PEDAL GOES SLOWLY TO THE FLOOR. DO I NEED TO BLEED THE SYSTEM AGAIN?
    THERE IS NO LEAKS ON THE LINES. WHAT ELSE CAN BE WRONG?
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  2. 05-19-2006, 08:22 PM #2
    aaronfelipe
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    All I can think of is air. Please do not type all caps.

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  3. 05-19-2006, 10:30 PM #3
    3kgtdrvr
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    if u slowly put pressure on the pedal does it sink slowly but if u slam the pedal does it hold?
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  4. 05-20-2006, 12:40 PM #4
    azkkr
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    Default brake

    Quote Originally Posted by 3kgtdrvr
    if u slowly put pressure on the pedal does it sink slowly but if u slam the pedal does it hold?
    that's what it's doing!!
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  5. 05-20-2006, 12:50 PM #5
    azkkr
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    Default brake

    Quote Originally Posted by 3kgtdrvr
    if u slowly put pressure on the pedal does it sink slowly but if u slam the pedal does it hold?
    That's whats happening
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  6. 05-20-2006, 12:57 PM #6
    3kgtdrvr
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    internal leak in the master cylinder
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  7. 05-20-2006, 01:01 PM #7
    3kgtdrvr
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    u get the master cylinder new or used bc its shot. u didnt happen to get any petroleum products in the brake fluid when u were bleeding it and all did u? like engine oil of wd40 or anything?
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  8. 05-20-2006, 01:25 PM #8
    aaronfelipe
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    Quote Originally Posted by 3kgtdrvr
    internal leak in the master cylinder
    That sucks.

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  9. 05-20-2006, 01:34 PM #9
    3kgtdrvr
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    if u got any petroleum based product inside the resevior and into the fluid then ur whole brake system is pretty much fucked. petroleum makes the seals swell and get all gummy and so all the seals in the master cylinder, calipers, and wheel cylinders are shot. u have to flush the whole brake system really well and replace all the seals in everything pretty much. even one drop of engine oil or wd40 or anything like that is extremely detrimental to ur braking system
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  10. 05-20-2006, 01:35 PM #10
    aaronfelipe
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    Quote Originally Posted by 3kgtdrvr
    if u got any petroleum based product inside the resevior and into the fluid then ur whole brake system is pretty much fucked. petroleum makes the seals swell and get all gummy and so all the seals in the master cylinder, calipers, and wheel cylinders are shot. u have to flush the whole brake system really well and replace all the seals in everything pretty much. even one drop of engine oil or wd40 or anything like that is extremely detrimental to ur braking system
    word, good to know this.

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  11. 05-20-2006, 01:39 PM #11
    3kgtdrvr
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    yeah sometimes people will like try to make stuff pretty and spray wd40 on all that stuff to clean it up and make it look good and they just ended up messing up their brakes
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