Minimum Rotor Thickness and Brake Fluid capacity? - MY98 RS

glyphic · 07-19-2002, 06:47 PM

Hi,

I'm replacing my pads, turning the rotors, and flushing the fluid this weekend, but I don't have a service manual (it's on its way).

Can anyone tell me what the minimum rotor thickness is for a MY98 Impreza RS? I called a few dealerships, and they say 22 mm, but there's no way my rear rotors are 22 mm--they're not vented.

Also, how much brake fluid is required for a complete flush? I've got a liter of Super Blue, but now I'm wondering if I should have bought 2.

Thanks,
Phil

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rkkwan · 07-19-2002, 07:17 PM

The stock WRX rear discs say 8.5mm. Not sure if it's the same for the RS. My guess is that it is.

I replaced my fluids with Super Blue too, and took me just under a liter. If you're careful, and don't need to bleed brakes excessively afterwards, you should be fine with one.

-Ray

Fred Zaplitny · 07-19-2002, 10:39 PM

I believe the rotors will have the minimum tolerance stamped right on them. Look inside the hub. I know my fronts were like that. The fronts were 22mm. Not the rears. The rears aren't even 22mm to start with!

Fred

07-19-2002, 06:47 PM	#1
glyphic Scooby Newbie Member#: 21216 Join Date: Jul 2002 Location: Los Angeles Vehicle: 1998 Impreza RS Black	Minimum Rotor Thickness and Brake Fluid capacity? - MY98 RS Hi, I'm replacing my pads, turning the rotors, and flushing the fluid this weekend, but I don't have a service manual (it's on its way). Can anyone tell me what the minimum rotor thickness is for a MY98 Impreza RS? I called a few dealerships, and they say 22 mm, but there's no way my rear rotors are 22 mm--they're not vented. Also, how much brake fluid is required for a complete flush? I've got a liter of Super Blue, but now I'm wondering if I should have bought 2. Thanks, Phil * Registered users of the site do not see these ads.

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07-19-2002, 07:17 PM	#2
rkkwan Scooby Specialist Member#: 5596 Join Date: Apr 2001 Chapter/Region: TXIC Location: Houston, TX Vehicle: 2010 Honda Fit Sport Black	The stock WRX rear discs say 8.5mm. Not sure if it's the same for the RS. My guess is that it is. I replaced my fluids with Super Blue too, and took me just under a liter. If you're careful, and don't need to bleed brakes excessively afterwards, you should be fine with one. -Ray

07-19-2002, 10:39 PM	#3
Fred Zaplitny Gone... But not forgotten Member#: 92 Join Date: Jul 1999 Location: East Detroit, Michigan Vehicle: 1999 2.5RS Coupe Blueish Kind of	I believe the rotors will have the minimum tolerance stamped right on them. Look inside the hub. I know my fronts were like that. The fronts were 22mm. Not the rears. The rears aren't even 22mm to start with! Fred