New Brake Master Cylinder
04-18-19, 08:37 AM
#1
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New Brake Master Cylinder
Hi, I was wondering if anyone has any info or used a Raybestos MC391317 before. I believe my master cylinder is bad, my brakes are spongy, have to push them all the way down, and I have bled my brakes.
04-18-19, 12:55 PM
#2
How did you bleed them? What was your process? You might want to inspect the rubber hoses too!
The typical method uses two people, one to press the pedal, one to open the bleeder until the pedal nears the floor and seal the bleeder BEFORE the pedal is lifted from the floor. Repeat until fluid is clear. Go to the next wheel and repeat.
Order is RR, LR, RF, LF.
Communication is key as you don't want to run the MC out of fluid or have a bleeder open when the pedal is rising from the floor.
The typical method uses two people, one to press the pedal, one to open the bleeder until the pedal nears the floor and seal the bleeder BEFORE the pedal is lifted from the floor. Repeat until fluid is clear. Go to the next wheel and repeat.
Order is RR, LR, RF, LF.
Communication is key as you don't want to run the MC out of fluid or have a bleeder open when the pedal is rising from the floor.
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