2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Brake Cyl. bore size?

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Old Feb 20, 2004 | 01:25 AM
  #1  
Wankel7's Avatar
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From: Indiana
Brake Cyl. bore size?

This is on a 91 TII.

What is the bore size of the front calipers?

What is the bore size of the rear calipers?

What is the bore size of the master cyl (ABS)?

I am looking to buy hones before I rebuild the brakes.

Here is a website that I found that has a tone of hones.
http://www.cartools.com/Merchant2/me...tegory_Code=BH
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Old Feb 20, 2004 | 01:54 AM
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From: Indiana
Re: Brake Cyl. bore size?

Originally posted by Wankel7
This is on a 91 TII.

What is the bore size of the front calipers?
36.12 MM (1.42 IN)

What is the bore size of the rear calipers?
34.93MM (1.375 IN)

What is the bore size of the master cyl (ABS)?
23.81MM (.937 IN)

I am looking to buy hones before I rebuild the brakes.

Here is a website that I found that has a tone of hones.
http://www.cartools.com/Merchant2/me...tegory_Code=BH
Go Fig it is in the FSM

Weird how the bore of the front brakes is larger than the bore of the rear brakes. I thought the rear would have had a larger bore.

James
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Old Feb 20, 2004 | 11:24 AM
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From: new jersey
Nope - Front brakes do most of the work, so they have the larger bore. When you step on the brakes, the car's weight is shifted forward, onto the front wheels, so you need the extra stopping power up front.
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Old Feb 20, 2004 | 12:45 PM
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I wouldn't use a hone on the piston bores. If they are too pitted to be cleaned up by crous cloth, I'd replace them.
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Old Feb 20, 2004 | 02:11 PM
  #5  
Wankel7's Avatar
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From: Indiana
I was guessing with four pistons doing the work they would be a little smaller than the single piston in the back. At leaat we have good brakes stock

Yeah, I dont know what they will look like. I don't want to get to agressive with the hone. Just enough to clean it up. I also wanted it for the master cyl. Since I wont be able to see in the bore clearly.

James
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