My brake fluid needs changed pretty bad. I've never done this to an rx7. How much new fluid do I need? Does anyone have the speedbleeders and are they worth picking up for the job?



thanks, chris

Speedbleeders are a must. You will need a full can of brake fluid. (8oz)



Hint - go to your local Ford Dealership and ask for heavy duty dot 4 fluid. It is for ford trucks and is really good stuff. It costs $10 for 8 oz. I would buy 2. Its wet boiling point is like 365° that is over 80° more than anything you will find in your autoparts store. I use it for racing and I can get away with not bleading my brakes after every AutoX with this stuff.

A mighty vac will work well to!

Just a tip -

Suck out almost all the fluid out of the Master Cylinder (Mitey Vac, Turkey Baster, whatever) along with all the dirt that is in there. Then refill with fresh fluid and then bleed the brakes.



This will get all the dirt out of the resovior, and you will be pumping fresh fluid into the lines when you start to bleed at each wheel.

Good point!, I also wipe out the layer of crud after I remove the fluid

start at the rear right brake when starting the bleeding process too, since it is furthest from the master cylinder. It will make it easier.

Just curious, why wont any DOT 4 or even DOT 5 fluid work? They are both higher temp fluids and heavier duty.

The 'norm' fluid is DOT 3.

Just curious, why wont any DOT 4 or even DOT 5 fluid work? They are both higher temp fluids and heavier duty.

The 'norm' fluid is DOT 3.[/quote]

i think dot 5 is silicone (dd?), its good if you have a show car, but the silicon is compressable so its kinda bad for a car you actually drive. dot 5 also wont eat you paint if you spill.

as far as the others, its all the same to me....



mike

Just curious, why wont any DOT 4 or even DOT 5 fluid work? They are both higher temp fluids and heavier duty.

The 'norm' fluid is DOT 3.[/quote]

i think dot 5 is silicone (dd?), its good if you have a show car, but the silicon is compressable so its kinda bad for a car you actually drive. dot 5 also wont eat you paint if you spill.

as far as the others, its all the same to me....



mike[/quote]

Right you are about the 5 being silicone.

Im with you, as long as its DOT 3,4, or 5- its all the same no matter the brands.

Just curious, why wont any DOT 4 or even DOT 5 fluid work? They are both higher temp fluids and heavier duty.

The 'norm' fluid is DOT 3.[/quote]

i think dot 5 is silicone (dd?), its good if you have a show car, but the silicon is compressable so its kinda bad for a car you actually drive. dot 5 also wont eat you paint if you spill.

as far as the others, its all the same to me....



mike[/quote]

Right you are about the 5 being silicone.

Im with you, as long as its DOT 3,4, or 5- its all the same no matter the brands.[/quote]

DOT 3 and DOT 4 can be mixed, but I don't think they can be mixed with DOT 5.