Brake bleeding

[gduke2010]

Quick question. What’s the best pressure bleeder for a 1985 911?

Any opinions or recommendations?

[Damon88]

Super happy with the Motive. Brake bleeding made simple and easy to use..


https://www.motiveproducts.com/products/power-bleeders-single-adapter-bleeder-kit-import-adapter-bleeder-kits-power-bleeders-single-adapter-bleeder-kit-domestic-adapter-bleeder-kits-power-bleeders-import-bleeder-kits?variant=6649612805&quiz-kit-id=8561&quiz-kit-api-call-url=https://api.quizkitapp.com/api/v1/quizzes/Io2i3AtmSl/add-to-cart

[gduke2010]

That's what looks best. Motive seems to have better reviews than Shwaben on Pelican Parts.

[John W.]

+1 for Motive. Don’t put brake fluid in it just use it for the pressure.

[isby]

Another vote for Motive. I agree with John’s suggestion above that it’s better to use it dry and not fill it with fluid. You just need to keep a close eye on the fluid level in the master cylinder.

[OldSpool87]

A hose to the over flow nipple on the reservoir or to an aftermarket cap (like the Motive one) attached to air compressor fitting works great. Set to about 10 psi. I tap calipers with a rawhide or plastic mallet as I bleed them.

[Mike80911]

I just changed the brake fluid on my 930 I used to cheap harbor freight vacuum bleeder and it worked great. First used it to vacuum out the fluid in the master cylinder refilled then on each bleeder. Pedal feels great and took no time at all. It is a little tricky because you will see air bubbles in the line to the reservoir when you are bleeing the caliper but just ignore that, that is not coming from the caliper it is in the drain line.

[83_Silberpfeil]

I just bought a Motive, and planning to replace the old fluid with fresh new. I'm curious about the recommendation to keep the Motive dry, not put any new fluid in it. Wondering what is the reasoning/benefit?

Thanks!

Originally Posted by isby

Another vote for Motive. I agree with John’s suggestion above that it’s better to use it dry and not fill it with fluid. You just need to keep a close eye on the fluid level in the master cylinder.

[isby]

I keep it dry mostly to avoid having to clean it afterwards, but also to avoid the risk (however small) that a failure will spew brake fluid all over the place.

[3literpwr]

I love my motive, had it for nearly 20 years. Always use it for fluid and lay it on it side when I want to move past fluid to pressure only (end of bleeding when you’re getting fluid to the right level in res).

[gduke2010]

Made a big purchase on pelican today. Bought the bleeder, stainless steel, brake lines, and the bleeder catch bottle. Also, but oil filters and crush washers. I need two filters because I have a 993 engine in my car.

Also, looking for a radio delete plate. Seems as if the radio delete plates for an 85. Don’t have the Carrera script on them like earlier models. So, I’ve been putting off removing the radio.

[gduke2010]

My spring projects.

[Quicksilver]

I use the Motive with no fluid in the tank and I added a ball shutoff valve in the line. (It really should have come with one.)
But . . .
If I was to do it again I would have just gotten a cheap adjustable pressure regulator, put a shutoff ball valve down stream, and then used a cap fitting like Motive uses. Repeatedly pumping up the tank is kind of silly when you just want a fixed pressure in the reservoir. I have a compressor so just regulating that would make it much simpler.

[Quicksilver]

Originally Posted by 83_Silberpfeil

I just bought a Motive, and planning to replace the old fluid with fresh new. I'm curious about the recommendation to keep the Motive dry, not put any new fluid in it. Wondering what is the reasoning/benefit?

Thanks!

- Pressurized brake fluid around paint that you care about is like juggling hand grenades. (Sure you can learn to do it but WHY?)
- Brake fluid can't be stored in the tank as it will quickly become contaminated with water.
- Cleaning out the tank so as to keep it clean is a pain and any that you miss will contaminate it the next time you use it.

----------------------
Get a shutoff valve and put it in the air line. Makes your life much easier.

[83_Silberpfeil]

Thank you both for addressing my Q. Makes sense to keep it clean/safe.
I completed my brake flush job yesterday. However, the Motive did not work for me. Instead, I had a helper at the brake pedal and did it the old way.

With the Motive, I was not able to get any pressure build up. Could not tell where I was loosing/leaking air. I think most likely it was the reservoir overflow line. I clamped it very tight using vice grips. But may be the overflow line was old/brittle it leaked air?

Looking to return the unit back.

Originally Posted by isby

I keep it dry mostly to avoid having to clean it afterwards, but also to avoid the risk (however small) that a failure will spew brake fluid all over the place.

Originally Posted by Quicksilver

- Pressurized brake fluid around paint that you care about is like juggling hand grenades. (Sure you can learn to do it but WHY?)
- Brake fluid can't be stored in the tank as it will quickly become contaminated with water.
- Cleaning out the tank so as to keep it clean is a pain and any that you miss will contaminate it the next time you use it.

----------------------
Get a shutoff valve and put it in the air line. Makes your life much easier.

[isby]

When I use the Motive, I always pull the overflow hose off the reservoir and attach a length of clear tubing. Then I tightly clamp the tubing. I’ve never had an issue with loss of pressure.

[berndtj]

I have a motive, but I don't really like it. It takes a lot of pumps to build up pressure and I manage to do air bubble free flushes/bleeds with a simple bottle (elevated) and tube on the bleeder and pumping the brakes and refiling the reservoir.