Go / No Go Gauge Size for Corner Seals

Revelc · 05-13-2011, 03:58 PM

Does anyone have a Mazda factory go / nogo gauge for checking corner seal bores that they could measure for me? I'm in the process of checking some used rotors that came out of my 20b, and I'd like to make sure they're good to use.

As far as I could find, the FSM only lists the corner seal outer diameter. If I were to turn a gauge myself, should I turn one end to be 10.990mm (This is the minimum size for a corner seal, any smaller and the the bore would be too small), and the other to be 11.014mm + ? (This is the max size for a corner seal +.0??mm)?

NoDOHC · 05-22-2011, 07:49 AM

To check this, you look at the pertrusion spec. You insert the corner seal (rotated the first time so that you can get it back out easily) on top of a new corner seal spring and press it down until flush with the housing - then you remove the pressure and verify that it comes up to the spec.

Revelc · 05-23-2011, 06:26 PM

I can measure the protrusion spec with my calipers. It's the bore diameter that I just wanted to double check. Neither source lists the specs of the bore gauge they are using.

It's this procedure:
http://www.turborx7.com/rereplacement.htm
Section 6.A

Or in the FSM, page C-55, procedure 5.

05-13-2011, 03:58 PM	#1
Revelc 20b Tinkerer Join Date: Jun 2010 Posts: 15 Rep Power: 0	Go / No Go Gauge Size for Corner Seals Does anyone have a Mazda factory go / nogo gauge for checking corner seal bores that they could measure for me? I'm in the process of checking some used rotors that came out of my 20b, and I'd like to make sure they're good to use. As far as I could find, the FSM only lists the corner seal outer diameter. If I were to turn a gauge myself, should I turn one end to be 10.990mm (This is the minimum size for a corner seal, any smaller and the the bore would be too small), and the other to be 11.014mm + ? (This is the max size for a corner seal +.0??mm)? Last edited by Revelc; 05-13-2011 at 04:11 PM.

05-22-2011, 07:49 AM	#2
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin Posts: 855 Rep Power: 17	To check this, you look at the pertrusion spec. You insert the corner seal (rotated the first time so that you can get it back out easily) on top of a new corner seal spring and press it down until flush with the housing - then you remove the pressure and verify that it comes up to the spec. __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)

05-23-2011, 06:26 PM	#3
Revelc 20b Tinkerer Join Date: Jun 2010 Posts: 15 Rep Power: 0	I can measure the protrusion spec with my calipers. It's the bore diameter that I just wanted to double check. Neither source lists the specs of the bore gauge they are using. It's this procedure: http://www.turborx7.com/rereplacement.htm Section 6.A Or in the FSM, page C-55, procedure 5.