Got my Z06 up on my new Quick jack to put on some new wheels and tires. Figured I would flush the brake fluid since it hasn't been done since I have owned it 2/2 and I don't know if and when it was done before that. .I found this on Amazon and was wondering what everyone thought. I found a video online on the flush but was wondering if anyone has any tips to make the job foolproof. How much Dot 3 should I buy? I remember someone had a thread using the Motive PB but you also have to buy some other parts. What's my best way to attack this?

 

No link to anything so can't say. I have used THIS with success.

As to how much fluid to buy, I use about 2 quarts. I suck out all the fluid in the reservoir, pour some back and suck it out. Not sure I want to mess around with pulling out the reservoir to get rid of any sediment at the bottom. I flush out all the fluid out of each line and then a bit more. Consider 8 bleeder screws so over a quart. Might as well buy 2. If you only use 1, return the other.

 

I use the same power bleeder but only use air to pressurize the system. I never put brake fluid in the Motive bleeder. Just think of the mess if it was to leak!

Please DON'T use the supplied RED Metal cap, it will destroy the locking lugs on your reservoir, ask me how I know.

Just write to Motive and they will send you a new cap, Black Plastic, and try that. I received one but of yet not tried it. Might have to modify it so it does not contact the locking lug on the reservoir.

Good luck.

 

Another vote for the Motiv. Used it on my previous c6 and last year on my c7z.

 

I don't think about the leak since it hasn't happened yet. Obviously, anything can, in the fullness of time, happen. If it does wouldn't water and soap clean off. The remaining fluid after you towel it off?

 

I use the Motive pressure bleeder. WAY better than suction bleeding. I have used it on a number of different cars. It works very well. I also don't put fluid in the big tank, but you have to be very careful NOT to run the reservoir dry.

 

That is what I bought the system for. So I don’t run dry. It'd be cheaper and just buy the cap and hook it to a pressure hand pump if I didn't dare to fill the tank. Just gentle hose on the reservoir, drive the car to a car wash and check it for leaks in a couple of days.

 

So if I get the Motive you also have to buy a bottle/container to hook up to the bleed valves; did you get that from Motive? TinkerTech warned about the red cap,has anyone called Motive and bought a plastic cap from them?
What do you guys/girls think of this?

 

No, the link I showed is complete. People choose to not fill the bottle so as to minimize the risk of spilled fluid. In which case, I would just get a new cap and put a nipple and pressurize it. Cheaper than buying the kit if you are not going to use the main benefit.

It looks like the similar one to your Orion kit. Can't say about the fit. Like said, use the plastic cap. Wipe any drips and wash anything left with soap and water. Bring it to a car wash that does underside wash and be happy.

 

It's a copy of the Motive, just get the Motive. I just use a tube and a bottle at the bleeder, anything will work.

 

It's half the price to be "affordable", aka cheap. My guess is that if you want to get that, don't forget the 3 year protection plan for that Chinese made crap

 

A lot depends on all the different fittings that are available.

 

Does anyone have a list of parts they used on their C7 using the Motive bleeder? I guess i will have to call Motive to get a cap that is plastic as opposed to the metal one supplied with the bleeder, correct? Does anyone have that part number so I can order it? Has anyone had trouble with the black metal cap that comes with it and why do you think Motive has not rectified it?

 

0118 is metal cap kit and 0108 is the plastic cap kit.

 

I really don't know if Motive has rectified the issue with the Red metal cap or not. After I destroyed the brake reservoir using the Red metal cap I just added an extra rubber gasket to it and did not fully tighten it down. I then contacted motive about this issue and they sent me a Black plastic cap which I have yet to try out.

I would think you could maybe modify an old stock cap to work as well, not really sure.

For the bottle I first just used an old Pedialite bottle with a hole in the center of the cap for the bleed tube and a very small hole off to one side to relieve the pressure. Since then I purchased a bottle from Motive and it was just the same as the one I made!

 

That is the one I have been using for the last 6 years. I do not put any fluid in the pressure tank as a loose seal or a sudden depressurization of the tool due to removing the cap from the MC before the pressure is relieved can cause a massive discharge of the fluid in the pressure tank.

How I use the tool is to suck all of the old fluid from the MC reservoir, fill with new fluid, install the Motive and pressurize the system. Then I go to the right rear and connect a clear vinyl hose (I think 3/16 is the size and at least long enough that I can set my drain bottle on the floor while turning the bleeder screw) and bleed the inner half of the caliper, I then bleed the outer half. Since I bleed my brakes several times per track season, there is little to no change in fluid color from old to new, so I watch the bubbles passing through the drain tube and estimate their speed to judge how long it would take for new fluid to flow from the MC to the brake caliper. I follow this by bleeding the left front, left rear and finally the right front calipers. That sequence is set by the Corvette's dual diagonal brake system, where the left front and right rear are on the same half of the brake system and the right front and left rear are on the other half of the brake system.

One thing to check when using the Motive Plastic Cap is how well it will seal on your MC. Motive provides two gaskets in this kit and I found I had to use the thicker gasket. This made it very hard to turn the cap onto the MC., Once I get it started, I use a pair of Channelock pliars to turn it the rest of the way.

I usually use 2 500 ml containers of brake fluid, although if I run into difficulty with something, it may take 3. Given that AP Racing Radical R4 Brake Fluid (644 F deg dry boiling point) runs close to $50 per container with tax, I try to not waste it.

Bill

 

Another thing to consider. You only need to pump up the Motive to about 5 to 10 PSI. That low of PSI, you don't have to worry that much about the cap being that tight. The amount of fluid from the reservoir to each wheel is very small, you don't have to use much fluid.
Good idea to suck the old fluid out of the reservoir, not pushing old fluid into the system.

 

At 100 psi, I might worry about that. At 10-15 psi, I really don't think we are talking about a massive discharge. Is a leak possible? Absolutely. I can't say it has happened as of yet. Is there going to be a few drops that fall on the reservoir when you take the cap off? Sure. Again, paper towels to mop up, soap and water to flush away if there is a huge leak. IF you are getting sudden depressurization, YOU did something wrong and not the tool. You depressurize it by loosening the plastic cap from the tank. Put the tank on the floor and open the cap on the master cylinder. IF gravity works, it pulls the fluid back into the tank.

I just take off the wheel. Place the drain pan under the wheel. Loosen the bleeder screw and let it go under control. When I feel it has had enough, tighten the bleeder screw. Move to the inner half. Move on to the next wheel. If you are lazy, leave the wheel on and hose it down immediately after the bleeding is done. After the job, I take the car to the car wash for an underbody wash and everything is cleaned. Move on to the next car and the next.

 

Never 'wipe' off any spilled brake fluid always rinse it off with water and maybe add a little Dawn dish soap. I always use a hose end sprayer.

Wiping it off will damage the finish, and don't wait too long or you'll have the same discoloration of your paint.

 

If there is are drops of brake fluid, you want to start washing first? I don't like it because I am spreading it further. I prefer to get rid of as much as possible with a paper towel and rinse off whatever is left next or what are you suggesting?