2nd Generation Specific 1986-1992 Discussion

Changing brake fluid

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Old 10-21-2002, 06:37 PM
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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
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Old 10-21-2002, 08:12 PM
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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.
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Old 10-22-2002, 07:34 AM
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A mighty vac will work well to!
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Old 10-22-2002, 08:16 AM
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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.
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Old 10-22-2002, 08:42 AM
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Good point!, I also wipe out the layer of crud after I remove the fluid
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Old 10-22-2002, 09:35 AM
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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.
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Old 10-22-2002, 12:12 PM
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Originally Posted by Jims5543' date='Oct 21 2002, 08:12 PM
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.
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.
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Old 10-22-2002, 12:49 PM
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Originally Posted by Rob x-7' date='Oct 22 2002, 09:12 AM
[quote name='Jims5543' date='Oct 21 2002, 08:12 PM']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.
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
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Old 10-22-2002, 01:28 PM
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Originally Posted by j9fd3s' date='Oct 22 2002, 12:49 PM
[quote name='Rob x-7' date='Oct 22 2002, 09:12 AM'][quote name='Jims5543' date='Oct 21 2002, 08:12 PM']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.
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.
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Old 10-22-2002, 03:51 PM
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Originally Posted by Rob x-7' date='Oct 22 2002, 10:28 AM
[quote name='j9fd3s' date='Oct 22 2002, 12:49 PM'][quote name='Rob x-7' date='Oct 22 2002, 09:12 AM'][quote name='Jims5543' date='Oct 21 2002, 08:12 PM']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.
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.
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