Skylark V6-3100 3.1L VIN M SFI (1996)
Vacuum Brake Booster: Adjustments
Gauge Method
Fig. 7 Master Cylinder Pushrod Adjustment. AC-Delco Type Vacuum Booster
On these models, the master cylinder pushrod length is fixed and is usually only checked after the unit has been overhauled.
1. Assemble booster unit and install pushrod, ensuring pushrod is fully seated.
2. Position go/no go gauge furnished in repair kit over pushrod as shown in Fig. 7
3. If pushrod height is not within limits of gauge, install service adjustable pushrod and adjust rod to obtain correct height.
4. Install power unit and check adjustment, ensuring master cylinder compensating port is open with engine running and brake pedal released.
