Going to change my brake master cylinder today.
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From: Nevada
Going to change my brake master cylinder today.
Going to change the MBC in my 92 Accord LX (no ABS) today. I ordered a replacement from Beck/Arnley. I know I need to bench bleed the MBC before I install it and I will need to bleed the brakes. What order do I bleed in? I keep seeing different orders. Any other tips or information I should know before I begin? This is my first time doing a MBC. Thanks.
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Re: Going to change my brake master cylinder today.
From Autozone, 1990-1995: Right rear, left front, left rear, right front.
Someone from another forum said the order changed in 1998, so that's why people may give different responses.
There is a kit sold at auto parts stores that help bench bleed the MC. Basically it has plastic bleeder fittings that connect to clear hoses so as you bleed the MC, it returns fluid back into it.
I think really the most important thing is that when bleeding the brakes, make sure you have a block under the brake pedal because, with no resistance due to the system being open, it is really easy to press the pedal and travel too far. This in turn can damage the seal in the MC causing it to leak.
Oh, and made sure you use a bleeder wrench so you don't round off the bleeder screws. People often like to use the plastic water bottle with some brake fluid in it and aquarium tubing for bleeding brakes rather than the store kits.
Someone from another forum said the order changed in 1998, so that's why people may give different responses.
There is a kit sold at auto parts stores that help bench bleed the MC. Basically it has plastic bleeder fittings that connect to clear hoses so as you bleed the MC, it returns fluid back into it.
I think really the most important thing is that when bleeding the brakes, make sure you have a block under the brake pedal because, with no resistance due to the system being open, it is really easy to press the pedal and travel too far. This in turn can damage the seal in the MC causing it to leak.
Oh, and made sure you use a bleeder wrench so you don't round off the bleeder screws. People often like to use the plastic water bottle with some brake fluid in it and aquarium tubing for bleeding brakes rather than the store kits.
Thread Starter
Honda-Tech Member
Joined: Jun 2016
Posts: 71
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From: Nevada
Re: Going to change my brake master cylinder today.
From Autozone, 1990-1995: Right rear, left front, left rear, right front.
Someone from another forum said the order changed in 1998, so that's why people may give different responses.
There is a kit sold at auto parts stores that help bench bleed the MC. Basically it has plastic bleeder fittings that connect to clear hoses so as you bleed the MC, it returns fluid back into it.
I think really the most important thing is that when bleeding the brakes, make sure you have a block under the brake pedal because, with no resistance due to the system being open, it is really easy to press the pedal and travel too far. This in turn can damage the seal in the MC causing it to leak.
Oh, and made sure you use a bleeder wrench so you don't round off the bleeder screws. People often like to use the plastic water bottle with some brake fluid in it and aquarium tubing for bleeding brakes rather than the store kits.
Someone from another forum said the order changed in 1998, so that's why people may give different responses.
There is a kit sold at auto parts stores that help bench bleed the MC. Basically it has plastic bleeder fittings that connect to clear hoses so as you bleed the MC, it returns fluid back into it.
I think really the most important thing is that when bleeding the brakes, make sure you have a block under the brake pedal because, with no resistance due to the system being open, it is really easy to press the pedal and travel too far. This in turn can damage the seal in the MC causing it to leak.
Oh, and made sure you use a bleeder wrench so you don't round off the bleeder screws. People often like to use the plastic water bottle with some brake fluid in it and aquarium tubing for bleeding brakes rather than the store kits.
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Joined: Jun 2015
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Re: Going to change my brake master cylinder today.
Other tips..make sure you have plenty of rags to catch whatever brake fluid spills as it can eat away paint.
I like to change out the fluid..bleed the line until you no longer see old, discolored fluid. Gravity bleeding can make this job a little easier (let brake fluid flow out the bleeders and then finish each individually with a helper or one-man bleeder kit)...just keep an eye on the brake fluid level. If it runs out, you'll have to bleed the MC again. You do have to make sure all the air is out, not most of the air.
But also, it is pretty straightforward, so you don't need to worry too much about it. Feel the brake pedal after you are done. It will feel spongy if you still have air. And if you put a block (I think I used a 2x4..can't remember it being any thicker) under the pedal, you aren't likely to damage the MC either.
You'll do fine!
I like to change out the fluid..bleed the line until you no longer see old, discolored fluid. Gravity bleeding can make this job a little easier (let brake fluid flow out the bleeders and then finish each individually with a helper or one-man bleeder kit)...just keep an eye on the brake fluid level. If it runs out, you'll have to bleed the MC again. You do have to make sure all the air is out, not most of the air.
But also, it is pretty straightforward, so you don't need to worry too much about it. Feel the brake pedal after you are done. It will feel spongy if you still have air. And if you put a block (I think I used a 2x4..can't remember it being any thicker) under the pedal, you aren't likely to damage the MC either.
You'll do fine!
Thread Starter
Honda-Tech Member
Joined: Jun 2016
Posts: 71
Likes: 1
From: Nevada
Re: Going to change my brake master cylinder today.
Other tips..make sure you have plenty of rags to catch whatever brake fluid spills as it can eat away paint.
I like to change out the fluid..bleed the line until you no longer see old, discolored fluid. Gravity bleeding can make this job a little easier (let brake fluid flow out the bleeders and then finish each individually with a helper or one-man bleeder kit)...just keep an eye on the brake fluid level. If it runs out, you'll have to bleed the MC again. You do have to make sure all the air is out, not most of the air.
But also, it is pretty straightforward, so you don't need to worry too much about it. Feel the brake pedal after you are done. It will feel spongy if you still have air. And if you put a block (I think I used a 2x4..can't remember it being any thicker) under the pedal, you aren't likely to damage the MC either.
You'll do fine!
I like to change out the fluid..bleed the line until you no longer see old, discolored fluid. Gravity bleeding can make this job a little easier (let brake fluid flow out the bleeders and then finish each individually with a helper or one-man bleeder kit)...just keep an eye on the brake fluid level. If it runs out, you'll have to bleed the MC again. You do have to make sure all the air is out, not most of the air.
But also, it is pretty straightforward, so you don't need to worry too much about it. Feel the brake pedal after you are done. It will feel spongy if you still have air. And if you put a block (I think I used a 2x4..can't remember it being any thicker) under the pedal, you aren't likely to damage the MC either.
You'll do fine!
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