Bench Bleeding Your Master Cylinder

CPP shows you step by step instructions on the quickest and most effective way to bench bleed your new master cylinder. Using the supplied bench bleeding hose kit CPP-BK that comes with every CPP master cylinder and our CP0105 brake bleeding syringe, you are guaranteed to remove all the air in matter of minutes without a mess. For more helpful tips and instructions, check out our online instruction sheet at www.classicperf...
Items you will need:
Bleeding syringe - CP0105
Bleeder kit - CPP-BK
Brake Fluid
Bench Top Vise
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[@jljones2270]

Thanks for sharing I learned about the syringe for the 1st time

[@CPPmaster]

We're glad it was helpful!

[@crisestrada9964]

This is the best method I have seen and makes sense,I will try it with my new CPP master cylinder I just purchased

[@CPPmaster]

Awesome! Glad it helps.

[@kikomutante]

Thanks for the tip! Just tried it on my MB w123, so far so good!

[@bigalforsyth]

what keeps your bench bleeding from leaking out when you remove the test lines? Wouldn't you have to start over once installed w/ hard lines on car?

[@TheBoobadaba]

^

[@thewhiteelephant]

You still have to bleed the entire system after you install the MC. Bench bleeding “primes” the system, so to speak.

[@ToxicMonkeyMovies]

As long as you don't pump the cylinder with the lines disconnected, air shouldn't re-enter the system.

[@scofozo]

@@ToxicMonkeyMovies so when i remove the bench bleeding lines i gotta quickly swap in the new lines so brake fluid doesn't pour everywhere?

[@mpmattson]

@@scofozo The brake fluid is held in by vacuum.

[@tmjmccormack]

Technically, if I have time, can I gravity bleed a master cylinder by pouring fluid in and letting it drip out of the unit using gravity if I don’t ever let it go fully empty?

[@johnmilner7603]

tmjmccormack Yes you can, but it’s slow. Set a water bottle with old fluid in it about 1” so your clear plastic hose is submerged under the fluid, then connect the other end of the hose to the bleeder then crack open all 4 bleeder screws. Let this go for about 1 hr then bleed all the wheels starting with the furthest away with a helper at the brake pedal. Bleed until there are no air bubbles before going to the next wheel. I’ll assume you know how to do the 2 person bleed method.

[@victorroff7003]

Hello
my car is 1993 Ford Taurus V6 3L and my master cylinder
have 4 ports (4 brake lines)
do I do the same things you did with the plastic hose,,but in my case i need to put 4 hoses instate of 2 like you?
thank you

[@jerrinmathew3340]

Does the syringe need to be submerged in the fluid at all times when doing this especially when pushing fluid out ? Couldnt tell in the video because of the camera angle.

[@mitchtalmadge]

You would definitely want to keep it submerged the whole time so you don't suck in air and push air into the cylinders.

[@debracallender2550]

Thank for the lesson.

[@KJeffrey007]

Thanks for the Tip!

[@djkujo007]

Great video 👍

[@CPPmaster]

thank you!

[@merlin3921]

Great video.

[@CPPmaster]

Thank you!

[@creepycrawler4690]

I'm trying to order your master cylinder bleed kit, but it won't download.

[@ronmurphy2069]

nice job brother

[@onelastgood1]

This kit should come with ur master cylinder

[@mpmattson]

Sounds like it does from the description.

[@onelastgood1]

@@mpmattson nope

[@dirkfrazier4086]

I've never messed with brakes before. My master cylinder went out when some moron- idiot... Another story, sorry. Long to short, this explained the missing link of why you bench bleed a master cylinder on the bench, not on your ride. Thank you good advice from NAPA Sumner, Wa. I was looking for the easiest, less painfull way out(mechanic engineer- paid from my pocket), and the guy selling the part asked if I knew utube. Yes, I'm a fan, I repied and mentioned a name, not a fan was his reply. So, intrigued, I went back to see the difference of on the car vs on the bench. My eyes were opened, I spent so much time finding a superior part over the one that broke, learning more about brakes I ever thought I would, why should I cheat my labor? Not only was my problem of replacing an inferior part with the same OEM design (larger bore), this video explained the proper installation procedure, over the quick & easy video's I was sold on. You tube is awesome, but don't gravitate to the easiest fix. I'm lazy, and so are you if you are unwilling to admit it. The guy behind the counter- not a-zone, oh-reely, or a number of others selling OEM, broke part, replacement seller- it broke because it is inferior to what the manufacturer originally designed, in my case, a superior 30 year old truck(Toyota), with an inferior part. It broke. I value my time and money, and if you don`t you are an idiot, my time was wasted explaining it to you and you're not my audience. NAPA knows parts, maybe, because they race cars & work on them? Go figure. This guy works on cars and knows why proper is superior over the lazy- bidon way out. Sorry Joe. I may be sitting on my ass learning, but when I work in something, once and done, is the way. Look at Joe, fifty years of leading us down the wrong path. Now, he's in position to make the last 50 final. Good luck. And the easiest does not make it best. Again, sorry Joe.