Pressure Bleeding System

[rallyace]

I am about to place an order for a Motive Power pressure bleeder with the adapter that they assure me will fit our master cylinders. I am looking for opinions on this. Should I go for it or spend an equal amount of money on the Speedi bleeders?

 

Mike

[D35 Torpedo]

A vacuum bleeder works fine. 

[rallyace]

16 minutes ago, D35 Torpedo said:

A vacuum bleeder works fine. 

I have had two mityvacs over the years, neither could generate enough vacuum to justify the time needed to do the work.

[Sniper]

I have the motive setup, you do not need speedy bleeders.

 

Hands down it beats any other DIY method I have ever used or heard of.  YOu fill up the tank with your flavor of brake fluid, screw on the adapter to the M/C, hook it to the tank, pump it up and then you go to your bleeders, put on a clear tube into a drain container and open the bleeder, let it run till it's clear and bubble free, close the bleeder, go to the net one.  Check the tank pressure after bleed #2, probably still good, and move to #3, then do #4, done.

 

 

 

[kencombs]

20 hours ago, Sniper said:

I have the motive setup, you do not need speedy bleeders.

 

Hands down it beats any other DIY method I have ever used or heard of.  YOu fill up the tank with your flavor of brake fluid, screw on the adapter to the M/C, hook it to the tank, pump it up and then you go to your bleeders, put on a clear tube into a drain container and open the bleeder, let it run till it's clear and bubble free, close the bleeder, go to the net one.  Check the tank pressure after bleed #2, probably still good, and move to #3, then do #4, done.

 

 

 

Does your Motive bleeder have something separating the air from the fluid in the little tank?   Years ago I had an old system that worked similar but the tank was in two halves, upper and lower, with a diaphragm separating the two.   So if one failed to top off the fluid no air could enter the system while bleeding.

 

 

[Sam Buchanan]

9 hours ago, kencombs said:

Does your Motive bleeder have something separating the air from the fluid in the little tank? 

 

It does not, just make sure you don't run the tank dry.

Edited September 24, 2023 by Sam Buchanan

[rallyace]

7 hours ago, kencombs said:

Does your Motive bleeder have something separating the air from the fluid in the little tank?   Years ago I had an old system that worked similar but the tank was in two halves, upper and lower, with a diaphragm separating the two.   So if one failed to top off the fluid no air could enter the system while bleeding.

 

 

From what I understand, put an ample amount of fluid in the tank, do a corner, check the tank and add more brake fluid if needed. Go to the next corner and bleed. Repeat as needed. If you got to get up and move your butt and your tools it is not that hard to check the level of the fluid tank at the same time. If you go through a quart of fluid on one corner you may have other issues that need to be addressed

 

[kencombs]

Yep, I was afraid of that.   I've been doing that with a homemade system.  Just a small pump up sprayer, some hose and a fabricated adapter.   The adapter is just an old master cap with welded on fittings.   Not hard, just a pain to release the reservoir pressure, fill, pump, repeat.   The one I once had was intended for shop use and held a lot of fluid so didn't need attention often.    I've always worked on a creeper when bleeding and don't get up.  Roll, bleed, roll, etc, etc.   Sure wish I hadn't sold my good one in a move. 

[Sam Buchanan]

18 minutes ago, kencombs said:

Yep, I was afraid of that.   I've been doing that with a homemade system.  Just a small pump up sprayer, some hose and a fabricated adapter.   The adapter is just an old master cap with welded on fittings.   Not hard, just a pain to release the reservoir pressure, fill, pump, repeat.   The one I once had was intended for shop use and held a lot of fluid so didn't need attention often.    I've always worked on a creeper when bleeding and don't get up.  Roll, bleed, roll, etc, etc.   Sure wish I hadn't sold my good one in a move. 

Good grief…..the Motive bleeder holds two and a half quarts, how much fluid do you need??

[Sniper]

That's a good question sam. When I first used that motive bleeder I had two empty calipers in the front and who knows how long it had been since the last time it was bled. 1 quart of brake fluid was sufficient to do all four quarters for me. And the old brake fluid actually looked really good

[kencombs]

9 hours ago, Sam Buchanan said:

Good grief…..the Motive bleeder holds two and a half quarts, how much fluid do you need??

Currently, a qt or so is enough.  I didn't realize the Motive held that much, looks much smaller.  In a past life brakes were a common, almost daily thing so the big unit was good for a week or so between refills. 

I think my cobbled together system will work for now.