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Possibly Need to replace the Master Cylinder soon?
June 3rd, 2008, 11:49 AM
#1
CF Junior Member
Thread Starter
Possibly Need to replace the Master Cylinder soon?
About 2 months ago, the boot on the rear driver side brake cylinder boot popped off, got it back on but there was brake fluid all over the place and the parking brake light has been on constantly. I've tried to bleed the brakes twice and every so often, just before I drive, I'll short pump the brakes and the light will go off.
A couple of times that I've done that, I have heard a metallic click after taking my foot off the brake pedal. Now, this doesn't occur every time, just every so often for now. Could this be an indication I should replace my Master Cylinder soon? I know I could rebuild it, but at this time, I would rather replace it completely till I can replace the whole brake system with an SSBC replacement.
A couple of times that I've done that, I have heard a metallic click after taking my foot off the brake pedal. Now, this doesn't occur every time, just every so often for now. Could this be an indication I should replace my Master Cylinder soon? I know I could rebuild it, but at this time, I would rather replace it completely till I can replace the whole brake system with an SSBC replacement.
June 4th, 2008, 5:17 PM
#2
RE: Possibly Need to replace the Master Cylinder soon?
<\\;P>\\;here&rsquo;s my understanding of what happened:<\\;/P>\\;
<\\;P>\\;you have rear brake drums and dust boot came off a brake cylinder. you put it back on, and bled brakes twice. you still need to pump brakes some to make them work fine. you hear light metal clunck when releasing the brake pedal.<\\;/P>\\;
<\\;P>\\;correct?<\\;/P>\\;
<\\;P>\\;dust boot has little to do with brakes, just protection. i am safely assuming a piston seal ripped on the cylinder, and, actually, fluid pressure blew the dust boot off. you did not overhaul the brake cylinder and are driving on leaking seal.<\\;/P>\\;
<\\;P>\\;brakes light probably came because of the low fluid level in the master canister.<\\;/P>\\;
<\\;P>\\;i wouldn&rsquo;t be worried about light metal clunk, it&rsquo;s probably simply return teminal impact under the dashboard. it&rsquo;s just that ever since, you became sensitive to "\\;brake related noises"\\;. might have been there for long time.<\\;/P>\\;
<\\;P>\\;i&rsquo;d start with overhauling the brake cylinder, not the master. easy job. yes, you&rsquo;ll have to bleed the system again, sorry.<\\;/P>\\;
<\\;P>\\;you have rear brake drums and dust boot came off a brake cylinder. you put it back on, and bled brakes twice. you still need to pump brakes some to make them work fine. you hear light metal clunck when releasing the brake pedal.<\\;/P>\\;
<\\;P>\\;correct?<\\;/P>\\;
<\\;P>\\;dust boot has little to do with brakes, just protection. i am safely assuming a piston seal ripped on the cylinder, and, actually, fluid pressure blew the dust boot off. you did not overhaul the brake cylinder and are driving on leaking seal.<\\;/P>\\;
<\\;P>\\;brakes light probably came because of the low fluid level in the master canister.<\\;/P>\\;
<\\;P>\\;i wouldn&rsquo;t be worried about light metal clunk, it&rsquo;s probably simply return teminal impact under the dashboard. it&rsquo;s just that ever since, you became sensitive to "\\;brake related noises"\\;. might have been there for long time.<\\;/P>\\;
<\\;P>\\;i&rsquo;d start with overhauling the brake cylinder, not the master. easy job. yes, you&rsquo;ll have to bleed the system again, sorry.<\\;/P>\\;
June 10th, 2008, 2:02 PM
#3
CF Junior Member
Thread Starter
RE: Possibly Need to replace the Master Cylinder soon?
Could you re-reply? I couldn't read what you replied with.
ORIGINAL: ukrkoz
<\\;P>\\;here&rsquo;s my understanding of what happened:<\\;/P>\\;
<\\;P>\\;you have rear brake drums and dust boot came off a brake cylinder. you put it back on, and bled brakes twice. you still need to pump brakes some to make them work fine. you hear light metal clunck when releasing the brake pedal.<\\;/P>\\;
<\\;P>\\;correct?<\\;/P>\\;
<\\;P>\\;dust boot has little to do with brakes, just protection. i am safely assuming a piston seal ripped on the cylinder, and, actually, fluid pressure blew the dust boot off. you did not overhaul the brake cylinder and are driving on leaking seal.<\\;/P>\\;
<\\;P>\\;brakes light probably came because of the low fluid level in the master canister.<\\;/P>\\;
<\\;P>\\;i wouldn&rsquo;t be worried about light metal clunk, it&rsquo;s probably simply return teminal impact under the dashboard. it&rsquo;s just that ever since, you became sensitive to "\\;brake related noises"\\;. might have been there for long time.<\\;/P>\\;
<\\;P>\\;i&rsquo;d start with overhauling the brake cylinder, not the master. easy job. yes, you&rsquo;ll have to bleed the system again, sorry.<\\;/P>\\;
<\\;P>\\;here&rsquo;s my understanding of what happened:<\\;/P>\\;
<\\;P>\\;you have rear brake drums and dust boot came off a brake cylinder. you put it back on, and bled brakes twice. you still need to pump brakes some to make them work fine. you hear light metal clunck when releasing the brake pedal.<\\;/P>\\;
<\\;P>\\;correct?<\\;/P>\\;
<\\;P>\\;dust boot has little to do with brakes, just protection. i am safely assuming a piston seal ripped on the cylinder, and, actually, fluid pressure blew the dust boot off. you did not overhaul the brake cylinder and are driving on leaking seal.<\\;/P>\\;
<\\;P>\\;brakes light probably came because of the low fluid level in the master canister.<\\;/P>\\;
<\\;P>\\;i wouldn&rsquo;t be worried about light metal clunk, it&rsquo;s probably simply return teminal impact under the dashboard. it&rsquo;s just that ever since, you became sensitive to "\\;brake related noises"\\;. might have been there for long time.<\\;/P>\\;
<\\;P>\\;i&rsquo;d start with overhauling the brake cylinder, not the master. easy job. yes, you&rsquo;ll have to bleed the system again, sorry.<\\;/P>\\;
June 10th, 2008, 6:37 PM
#4
RE: Possibly Need to replace the Master Cylinder soon?
'd love to, it's the way forum posted it.
my understanding of what happened:
you have rear brake drums and dust boot came off a brake cylinder. you put it back on, and bled brakes twice. you still need to pump brakes some to make them work fine. you hear light metal clunck when releasing the brake pedal.
dust boot has little to do with brakes, just protection. i am safely assuming a piston seal ripped on the cylinder, and, actually, fluid pressure blew the dust boot off. you did not overhaul the brake cylinder and are driving on leaking seal.
brakes light probably came because of the low fluid level in the master canister.
i wouldn't be worried about light metal clunk, probably simply pedal return terminal impact under the dashboard, just that ever since, you became sensitive to brake related noises might have been there for long time.
I'd start with overhauling the brake cylinder, not the master. easy job. yes, you'll have to bleed the system again, sorry.
my understanding of what happened:
you have rear brake drums and dust boot came off a brake cylinder. you put it back on, and bled brakes twice. you still need to pump brakes some to make them work fine. you hear light metal clunck when releasing the brake pedal.
dust boot has little to do with brakes, just protection. i am safely assuming a piston seal ripped on the cylinder, and, actually, fluid pressure blew the dust boot off. you did not overhaul the brake cylinder and are driving on leaking seal.
brakes light probably came because of the low fluid level in the master canister.
i wouldn't be worried about light metal clunk, probably simply pedal return terminal impact under the dashboard, just that ever since, you became sensitive to brake related noises might have been there for long time.
I'd start with overhauling the brake cylinder, not the master. easy job. yes, you'll have to bleed the system again, sorry.
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