Motive Pressure Bleeder adapter for Hondas

[slo town]

Interesting hypothesis. But my experience doesn't validate that enough moisture is pushed into the brake fluid to make any measurable difference.

I've been using a Motive for many years now, and have done a number of brake fluid flushes with it. I also use a brake fluid moisture gauge to measure the % moisture in the brake fluid. The gauge has a range of 0-4% moisture with 1% resolution. I have never measured any moisture in brake fluid that has been added to my brake system by using the Motive method, until the brake fluid is 2 - 3 years old. It takes that long before I measure even 1% moisture. It is recommended to change brake fluid at 3% or greater moisture. My OCD means I change it much sooner than that. I've never measured 2%.

Your experience may be different, depending on the climate you live in, how humid of a day when you do a brake fluid job, and how long you leave the jug lid off, when filling it. It is a relatively dry climate where I live, with RH usually around 20-40% in the summer and 50-75% in the winter.

And I would agree with you. It probably doesn't make any difference. However, in theory there is a difference, however slight.

Let me add, I own and have used a Motive pressure bleeder. Once. I was surprised how much pressure was required to move any significant amount of brake fluid. Not only was it slow compared to brake pedal bleeding, I was uncomfortable with pressurizing the fluid reservoir. I kept having thoughts of the reservoir popping off the master cylinder, the reservoir splitting open, or the cap popping off and spraying brake fluid everywhere. No question its primary benefit is that you can bleed brakes single handidly, but my wife Sue is more than willing to help with that.

Like I said, it probably doesn't make any difference, it's just one of those tools I didn't like using.

Scott

 

[Snagglefoot]

These posts are some of the best ones I’ve seen on how to update your Motive Pressure jug.

 

[JeffKeryk]

The Motive Bleeder was the only way I could get a brake pedal in my '68 Vette with the early calipers. And make sure you have manifold vacuum for the booster!!!

 

[Snagglefoot]

Right now I have some quick connecters so I can separate the hose to the Motive bleed jug, from the hose to the Motive cap at the master cylinder and rig up a quick connecter
If I was to use a CTA Tools cap I would need a Nitto female quick connecter at the end of the cap, a piece of hose and another quick connector to join the lines.