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Brake bleeder size?

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97gsxturbo97

10+ Year Contributor
87
1
Jun 19, 2008
Woburn, Massachusetts
This is getting very frustrating. Does anyone know the size of the brake bleeder screw on a 97 eclipse gsx. I am trying to buy speedbleeders but I dont know the size. I searched but I found that it is either 10.0X1.00 or 7.0X1.00. I went to autozone and they said its 7.0X1.00. Summit racing says 7.0X1.00. The problem that Im having is that the nut size to open the bleeder is 8mm. Does that mean I need an 8.0X1.00 or is that not how the sizes work. A 7mm socket is too small. Please let me know the correct size. Thanks for your help.
 
SB1010 (M10 x 1.0) is used for the front dual piston calipers as well as the slave cylinder. SB7100 (M7 x 1.0) is used for the front single piston calipers (GST) and all rear calipers.

The SB7100 will use an 8mm wrench I believe and the SB1010 will use an 11mm wrench. The wrench size does not coordinate with the metric size of the bleeder valve.
 
The size is a measure of the actual bolt thickness and the thread pitch. You can find the same measurement bolts with all kinds of different size and types of heads. If you're stuck and want to be sure go to the hard ware store and buy plain bolts in the sizes listed above and screw them in. Then you will be absolutely sure.

Also, I recommend just using a vacuum pump. I personally trust it more than a little check valve system and it's cheaper.
 
The size is a measure of the actual bolt thickness and the thread pitch. You can find the same measurement bolts with all kinds of different size and types of heads. If you're stuck and want to be sure go to the hard ware store and buy plain bolts in the sizes listed above and screw them in. Then you will be absolutely sure.

Also, I recommend just using a vacuum pump. I personally trust it more than a little check valve system and it's cheaper.

I was going to buy one of those cheap vacuum pump kits or the one man bleeder kits from autozone but I didnt know if I should trust those. I am still going to have two people when I bleed my brakes but I figured if I got the speedbleeder then I would ensure that I would have absolutely no air in the system. Let me know what you think otherwise I will just do it the old fashion way.

Also Ive been searching the forums all day and so far have found two ways to bleed the brakes. The first way is RR, LR, FR, LF. The other way I found and someone said it is specific to the 2G is with the engine running RR, LF, LR, RF. Im assuming the second way is the correct way and that the engine is running to allow the abs to be on while im bleeding the system. Please let me know if Im correct on this. Thanks for your help.
 
If you get one of the vacuum pumps that has a solid hand pump with gauge and reservoir it should work well. I had to add some electrical tape around the threads of the reservoir to keep a perfect seal. That way if you have to do it alone you can create and maintain a good vacuum and be assured no leaks. I guess I just trust a constant vacuum reading more than a check valve. It seems like the auto bleeder setups are more for convenience than assurance. That's just an opinion though. Someone else may know more about their record on quality and functionality.

Sorry, 1G with no more ABS. Don't know if there is a better way to do that car. I've always started from close to the Master cylinder and worked my way out, which would be FR, FL, RR, RL. I suppose that's opposite of what most people recommend, but I just pump lots of fluid though. Never been a problem for me. Of course, with ABS line distance from the master to each caliper might be more complicated than which wheel is farthest.
 
Old post. BUT.......

Just went to put my new M10x1.0 brake bleeder screws in my 97 TSi AWD. The front dual piston calipers on my car look like they take the M7x1.0 cause these bleeder screws are way too big.

8mm wrench to remove the bleeder.

Banjo fitting for the brake line.

Did I get like some OEM frankencaliper from Mitsu with car?

I just checked on my car.

Slave cylinder is M10x1.0.
Rear bleeder screw fits into the front caliper, so I suspect M7x1.0 was used for front and rear calipers on some cars.
 
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From what I found on my DSM as well as a buddies 2g AWD Talon...

Slave cylinder uses a M10x1.0 bleeder screw
AWD 2-piston front caliper uses a M7x1.0 bleeder screw (the M10's were HUGE)
Single piston rear caliper uses a M7x1.0 bleeder screw

Evo Brembo's, front and rear, use the M10x1.0 bleeder screw
 
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