Need Help From Experienced People...

[thepremier]

Hello,

I am in the middle of installing my vacuum brake setup.

At this point, I am stuck on this particular part of the instructions, the instructions read as follows:

Next, you need to bench bleed the MC. Place it in a vice just tight enough to hold it in place. Use those cutoff lines I included. Use a tuging cutter to make open ends. Fit a hose tightly over each of the lines and run the other end of the hoses into the resevoir. Fill with clean brake fluid and then use a rod to push on the plunger of the MC. This will pump the air and old fluid into the reservoir. Keep pumpint it until all air is removed. Dump dirty fluid and add clean fluid and repeat until clean brake fluid is observed in the reservoir.

I don't completely understand the instructions that are in red writing. Can somebody please explain exactly what I should be doing. This is my first time doing this, so I would appreciate it if instructions were detailed.

Thank You

 

[PaCemkr86]

tuging = means tubing cutter

pump the fluid out of the lines and back into the reservior " leave the lid off"

this is called bench bleeding

 

[BlackMetal]

Quick drawing might help...

Fit rubber hose over the hard brake lines and loop the lines back into the reservoir and submerge them so that no air will enter the lines but any air already in the lines or in the master cylinder will be purged out and will bubble out of the fluid. Just push the master cylinder rod to force fluid through the lines.

 

[turbofabricator]

Click this link for a picture: 0509sc Bench 02 Z Photo
After you make your master cylinder look like this, take a phillips head screwdriver and push it into the piston, and keep slowly pushing the piston until it bottoms out and keep pumping it slowly until no more bubbles appear. Then go head and install it. If you are going to install a used master cylinder, I woould HIGHLY recommend that you take it to your local parts store and use it for a core on a rebuilt unit. They are usually only $40 or so. Maybe the used one caused the crash on the car that it was pulled from in the bone yard.

 

[thepremier]

One More Question...

Okay, I got all of that out of the way and completed.

One last question, I am going to have to connect through the PCV hose in order to get adequate vacuum.

It says to use a 3/8" Vacuum Tee, and cut into the PCV hose and install the Tee in the PCV Hose. The Tee that I have is T-Shaped with openings at each end. I know I am supposed to run 3/8" Fuel Hose from the PCV connection all the way to the Check Valve on the booster.

What I am confused on is the fact that there is the 3rd opening on the Tee that is not used for anything, unless I am doing something wrong.

Won't the opening on the Tee cause the setup no to function correctly?

Maybe I have the wrong Tee, if so, what type of Tee am I supposed to be using. I would appreciate all help.

Thank You

 

[kh440]

You can do that, but you're better off getting a new vacuum block that has the extra fitting for the vacuum brakes. I think Kirban's has them or Gbodyparts.

 

[BlackMetal]

All three ports of the T will be used. You're cutting open the PCV hose and installing the T into that line that you just cut open, so there goes 2 ports, and the third port is going to the check valve.

But as kh440 said you could also avoid that mess and purchase a vacuum block with the extra port for brakes.

 

[thepremier]

All three ports of the T will be used. You're cutting open the PCV hose and installing the T into that line that you just cut open, so there goes 2 ports, and the third port is going to the check valve.

But as kh440 said you could also avoid that mess and purchase a vacuum block with the extra port for brakes.

Thanks for the photo guide Turbo6Chicago, now it all makes perfect sense. I think I agree with the post above regarding purchasing the TTA Vacuum Block that has the extra spot to connect the vacuum hose. I actually just ordered it tonight from Kirban's. I appreciate your followup info, it cleared up everything

 

[novaderrik]

teeing into the PCV line with a 50 cent tee fitting will get the job done just as well as a new junction block will, and takes less time to install.