Quantcast
Jump to content

Brake Bleeding Nightmare, any advice??


Recommended Posts

So I just spent 10 hours working on the brakes for my new mystery buggy, and still can’t get pressure. Never in my life have I had such a difficult time trying to bleed a brake system and i’m  a fairly competent mechanic. I’ve come to the conclusion that I need to try new master cylinders becuase these simply are not working... anyone have any tips for bleeding these wretches?

Link to comment
Share on other sites

Do be offended if I state something you already know.  I'm just covering all bases.  This is how I bleed my brakes on my van and car.  My Renegade has three master cylinders (one for the clutch and two for the brakes - I believe that's how they're configured).

If you're doing it solo,

1.  Place a small glass jar at the wheel furthest from the master cylinders (usually the right rear). and fill the jar with about 1" brake fluid

2.  Connect a hose from the bleeder valve to the jar.  Make sure the end of the hose is submerged and fits snugly over the bleeder valve.  This will be your airlock.

3.  Fill the master cylinders with brake fluid.

4. Open the bleeder valve at the wheel furthest from the master cylinder (usually the right rear)

5.  Pump the brake pedal slowly about 3 times.  Important:  Make sure the hoses stay submerged in brake fluid at each wheel and you don't let the fluid level in the master cylinder drop to the point of pumping air into the brake lines.  You may find you can pump it more times before you have to refill the master cylinders.

6.  Refill the master cylinders and/or the jar as needed.

7.  Repeat steps 5 & 6 until you feel you've bled all the air out of that line.  If you have a helper, they can watch for air bubbles in the jar to cease.

8.  Close the bleeder valve at that wheel.

7.  Move to the next wheel (left rear) and repeat steps 3-7.  Then repeat for the right front, then the left front.

There are several websites that tell you how to bleed brakes.  I would suggest you take a look at them for pointers.  They can be of help.  You may have to bleed the master cylinders before you do the wheels.

  • Thanks 1
Link to comment
Share on other sites

  • 2 weeks later...

So if you have not tried a vacuum pump do so before replacing your master cylinders ,  I have found over the last few years with the new brake systems this simple machine is a lifesend. The one I have is made by mightyvac and was about 50$ at my local auto parts store, as long as your master cylinder is full it will pull out all the air in a few minutes.

image.jpg

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

  • Similar Topics

    • By Ric Silveira
      Got me a New Coleman Outfitter 2021 400
      and joining here to hopefully learn lots about it.
      I understand it's not top of the line but couldn't offord other. I'll be using it for riding around the neighborhood and light off reading here in Southwest Florida and not planing on beating it just some fun with my wife
    • By res2fr
      Hello All,
       
       I am trying to find a Scanner that is works for a 2016 MSU500. I found the Tiny Scan TS301 that looks like a decent Scanner but so far have not been able to get confirmation that this works on and older model. It has been stated that it works on the 2019 and newer but not sure about older models. It appears that the ECM/ECU/EFI modules are likely interchangeable between a 2016 and the newer 2019 and on but not sure of the Scanner. I am waiting for feedback from Hisun on this issue right now.
       If this unit is not usable for my model year has anyone found and a Diagnostic Scanner for the older machines, one that works and is Affordable?
      Thanks for reading my post and any information that you may have to share,
      Robert
    • By John Chauvin
      My 800 sx with 75 hours is under warranty and began rough idle and unburned fuel coming out exhaust. I am located in eastern Arizona 5.5 hour drive from selling dealer (Bass Pro) in Mesa, Az. Called Tracker factory and they tell me there are dealers in Prescott and in Lake Havasu Az in far west Arizona. Tracker needs to find and appoint a dealer in Show Low Az if they want to compete with Polaris in the White Mountains. Show low is only 90 miles from me and I could live with that.
    • By Kflan99
      Hi ya all,
      My Joyner Diff is busted. Any leads on a mechanic who can rebuild it ...or replace it?  I can seem to find anyone. Thanks!!!!!
      JNSZ650UV

    • eManualOnline
    • By Susana
      I changed the rectifier regulator in my 2019 massimo Tboss 410 which was burnt out and still nothing. Battery is charged. The screen is dead no noise. Could the starter relay need to be changed as well? Please help me

×
×
  • Create New...