Protege 2WD & 323

WARNING: This page is about a different car, the 1991 Mazda Navajo. However, it is still accessible from the selected car via links, so may be relevant.

Support engine. Raise and support vehicle. Remove drain plug, and drain transaxle. Remove engine mounting member. Remove oil pan, gasket and control valve body. Remove snap ring and 2-4 band servo assembly. See Fig 1.

Install servo piston onto adapter. See 2-4 BAND ADJUSTMENT ADAPTER (PROTEGE 2WD & 323) TABLE. Remove "O" ring from servo retainer. Coat "O" ring with ATF, and install ring onto adapter. Install 2-4 band servo assembly into transaxle case, and secure using snap ring. Position dial indicator against piston stem. See Fig 1.

2-4 BAND ADJUSTMENT ADAPTER (PROTEGE 2WD & 323)

Application		Adapter No.
Protege 2WD
1.8L DOHC		49 B019 005
1.8L SOHC		49 B019 004
323		49 B019 004

Fig 1: Adjusting 2-4 Brake Band (Protege 2WD & 323)

Courtesy of MAZDA MOTORS CORP.

Using a rubber-tipped nozzle, apply compressed air through fluid passage, and measure piston stem stroke. See Fig 1. Piston stem stroke should be .040-.067" (1.0-1.7 mm) at 57 psi (4.0 kg/cm² ). If piston stem stroke is not as specified, replace piston stem.
Nine different piston stems are available in .02" (.5 mm) increments ranging from 3.74" (95.0 mm) to 3.90" (99.1 mm). Remove 2-4 band servo assembly and adapter. Install servo retainer using new "O" ring.
Install valve body, and tighten to 65-95 INCH lbs. (7-11 N.m). Install oil pan with new gasket. Tighten bolts to 74-95 INCH lbs. (8-11 N.m). Reverse procedure for remaining components. Add fluid, and check level. DO NOT overfill.