Questions tagged [master-cylinder]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
0 answers
23 views

Unable to add clutch fluid in my 1991 chevy S-10

When i go to add clutch fluid to my 91 chevy S-10 the rubber diaphram inside the cap forces the fluid right back out, most diaphrams ive seen can be collapsed with finger prior to screwing on cap but ...
sideshowbob's user avatar
0 votes
0 answers
44 views

Can I rule out a bad master cylinder if the pedal is firm with the engine off?

I am diagnosing excessive brake pedal travel (2 inches) and would like to rule out the master cylinder. I remember one youtube video that said if the pedal has minimal travel with the engine off, one ...
redbeard1's user avatar
5 votes
1 answer
426 views

How does the brake fluid return to reservoir in Disc Brakes after brake pedal is released?

In drum brakes i think there is a spring that returns the shoes of the drum to their original location which pushes fluid back into reservoir. However for example in the video at timestamp https://...
Timothy Scherer's user avatar
3 votes
2 answers
63 views

How is lost fluid replaced when bleeding brakes?

(Embarrassing question. I had a vague sense of how the master cylinder (M/C) works; but, when I look at the pictures, I don't see it.) When bleeding (per schematic below): Push on the pedal. The ...
George's user avatar
  • 1,113
2 votes
0 answers
111 views

Flute like sound when depressing the brake pedal, engine off

I have a Vw Polo 6n2 from 2000 without ABS. A while back I replaced rear drum brake cylinders and shoes and then I bled them. Concerned with the brake fluid level in the reservoir which went below ...
neortic's user avatar
  • 41
1 vote
3 answers
179 views

Front passenger brake keeps sticking at random

I have a 2007 Kia Sorento. 3 weeks ago the front right caliper or brake started sticking. So much so that there was an extreme amount of heat coming from the wheel area. So far we have replaced the ...
Tiffany Dearmon's user avatar
0 votes
1 answer
598 views

Does a diameter of a brake line affect braking pressure

I am currently building a brake system for a vehicle ground up and I know that the diameter of the master cylinder would affect the braking force proportionally to the area of the master cylinder. But ...
John Rawls's user avatar
1 vote
0 answers
69 views

Intermittent Clutch Bite - 2018 Chevy Cruze LT RS Manual Trans

Background: As included in the title, I've recently acquired a 2018 chevy cruze LT RS with a manual trans. It's got 42k miles on it. Problem: On normal operation, the clutch will start to grab about 1/...
ClicheCoffeeMug's user avatar
0 votes
1 answer
133 views

Why is my pedal vibrating and making a noise when I start to brake?

need some advice here. I have just gotten 2007 Mitsubishi Galant from relative with some braking problems. When I go to brake the PEDAL vibrates and make a loud noise. I have taken it too the shop a ...
Samantha Bostic's user avatar
1 vote
1 answer
71 views

Stuck Clutch 1995 Alfa Romeo 916 S 2.0 l TS

I bought a Alfa Romeo 916 and knew I would have to do some work on it, including replacing the clutch. I bought a LuK clutch and replaced the clutch plate, pressure plate, and throwout bearing (...
RufusV's user avatar
  • 121
0 votes
0 answers
92 views

06 Toyota Corolla No Brakes

I have a 2006 Toyota Corolla with 132k miles. Just replaced the front brakes rotors and pads yesterday. Afterward, I manually pumped them up before starting the vehicle; however, upon starting my ...
Jared Minns's user avatar
0 votes
0 answers
74 views

Replacing rear brake lines, is one enough or should I add two?

I am in the process of restoring a Mitsubishi GTO, who's brake lines have rusted. I'll be using NiCoper lines, replacing the Master Cylinder, removing the ABS modulator (also rusted and can't find a ...
Ælex's user avatar
  • 183
3 votes
2 answers
2k views

Brakes are still soft. Do I need a new ABS Pump? 07 Mazda 3

I posted a while back about my brakes being spongy. I've tried a lot of different solutions to no avail. I bought my 07 Mazda 3 around 7 months ago. They told me about the spongy breaks, and said ...
Jonathon's user avatar
  • 181
1 vote
1 answer
3k views

How to drain a brake booster

I improperly installed a master cylinder. This punctured a hole in the cylinder. I didn't realize this until I pumped a gallon of brake fluid into my booster. How do I get it out? 2014 jeep wrangler ...
Josh C.'s user avatar
  • 133
0 votes
3 answers
9k views

Brake master cylinder rubber seals - replaceable or not?

This is probably a completely newbie question, but it's my first car and I'm yet just learning. So my master cylinder is defective, the brake pedal sinks and even though I can live with it, it has ...
Dennis Novac's user avatar
2 votes
2 answers
176 views

Unable to bleed brakes 87 nissan 300zx

I am currently restoring a 1987 Nissan 300zx I replaced the master cylinder and when bleeding the brakes the pedal would hold for a few seconds and then slowly fall I ran about 2 liters of fluid ...
Wazy's user avatar
  • 131
1 vote
1 answer
918 views

After changing brake lines the brakes are extremely soft. Bleeding doesnt help and theres no leak. No abs

I put new brake lines in the car, put the fluid into tank and started bleeding the system. The problem is the pedal goes hard after a few pumps but gradually loses pressure and its not getting any ...
Martin's user avatar
  • 11
1 vote
2 answers
2k views

Brake pedal still soft

I have a 2007 Mazda 3. When I purchased it, it came with a soft brake pedal. I thought that the brakes needed bleeding, but after taking it in to get it bled, there was no difference and apparently it ...
Jonathon's user avatar
  • 181
1 vote
1 answer
2k views

Container holding brake fluid is bubbling

The brake fluid container of my 2010 Honda has started to bubble (clear reservoir).
Carlos Gutierrez's user avatar
1 vote
2 answers
3k views

Motorcycle Brake Lever - Soft Feel & Long Pull

I have a 2008 Kawasaki ER6 / Ninja 650R race bike. Within my class I must use OEM calipers & a OEM master cylinder. These components are also not allowed to be modified. As the title says, the ...
Willem's user avatar
  • 249
0 votes
1 answer
8k views

Why would my brake pedal go halfway to the floor before the brakes engage?

I've got a 2008 Mazda 3i with 120k miles on it, manual transmission. The brake pedal started going halfway to the floor before the brakes engage, although braking action seems normal after that, maybe ...
mmathis's user avatar
  • 167
2 votes
2 answers
10k views

Gasket between master cylinder and brake booster?

So I replaced my master cylinder on my 1995 Acura legend and there a hissing sound coming from the brake booster area. Upon more thorough inspection, I found that placing my finger on the bottom side ...
sjfklsdafjks's user avatar
0 votes
1 answer
1k views

How do I bleed the master cylinder and check the booster for fluid?

We bled the brakes after replacing the 4 brake hoses that run to the calipers since a hose burst the other day. We bled them, and the brakes still feel spongy and the fluid is decreasing ever so ...
sjfklsdafjks's user avatar
2 votes
1 answer
217 views

What vehicle does this master cylinder and booster go too

This is a pic of my old master and booster off my 1966 chevy c10. It is not correct to vehicle. I'm trying to figure out what make and model vehicle this is for. Any help would be much appreciated. ...
Jason's user avatar
  • 21
0 votes
1 answer
620 views

How do I check the brake fluid in master cylinder of my car?

I want to check the brake fluid level of my car, its my first time so I dont know how to check it.
PARTS AVATAR-CANADA's user avatar
1 vote
1 answer
3k views

Clutch problems

I have a Seat Leon 1.9TDI with about 53k miles on it. While driving one day I started noticing that when I press the clutch pedal down and then release it, it starts to get stuck on the way back up. ...
px06's user avatar
  • 111
1 vote
2 answers
525 views

Clutch Peddle Pops Down When Barely Touched and Doesn't Return

My friend has a manual transmission 2000 Honda 1.6L iSR whose clutch peddle pops down at the slightest touch and doesn't return to the up position unless you pull it up. The clutch system is ...
Robert S. Barnes's user avatar
1 vote
1 answer
94 views

Emptying motorbike master cylinder

I had to drill out the rear brake reservoir screws on my '98 Suzuki GS500E as they'd rotted but in doing so I managed to snap the drill bit. Carelessly, the top of the reservoir was off by this point ...
tobyd's user avatar
  • 143
2 votes
1 answer
6k views

Pass-through hydraulic hand brake cylinder

I'm designing a custom hydraulic hand brake I want to build next. It will be a pass-through or "in-line" system, which is to be installed between the master cylinder and the rear brakes by "...
Aram Alvarez's user avatar
  • 3,336
2 votes
2 answers
962 views

Stripped Thread: Motorcycle Brake Lever Master Cylinder

I was busy re-positioning the brake lever (left-to-right on the handlebar) by loosening the bolts that clamp the brake lever master cylinder onto the handlebar. When I tightened the bolts I noticed ...
Willem's user avatar
  • 249
2 votes
1 answer
770 views

Is it okay for master cylinder to be crooked (leaning to left) on aftermarket power brake booster?

I am replacing the power brake booster on my 2005 Ford Escape V6 3.0 XLT. When I go the new booster in and put the master cylinder on the bolts, the master cylinder was leaning to the left, so it is ...
ScottK's user avatar
  • 121
1 vote
0 answers
2k views

Did I ruin my master cylinder by putting vacuum pressure on the reservoir?

99 Saturn SC2 I was bleeding my brakes and accidentally let some air into the master cylinder because I didn't refill the reservoir. I was going to take the master cylinder out and bench bleed it but ...
ShaneBird's user avatar
  • 479
1 vote
2 answers
163 views

Work involved in changing master cylinder and brake booster on 1972 Mustang

How much work is involved to change out the master cylinder and power brake booster on a 1972 Mustang?
al tommaso's user avatar
1 vote
2 answers
19k views

brakes wont bleed after replacing lines from mc back 98 gmc jimmy

98 gmc jimmy 4.3 liter. brake pedal to floor after ok previous day. eventually stops me although don't stop on dime. hubby replaced lines from mc back (rubber and metal) part of line. Tried to bleed ...
soroko's user avatar
  • 11
2 votes
4 answers
1k views

Brakes don't work

I have a 98 Chevy Blazer 4.3 liter I was driving down the road coming home when I went to apply the brakes the pedal went to the floor but I did not slow down nor stop I had to use a hill in order to ...
Victoria 's user avatar