Valve Clearance Adjustment
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1997 GMC Savana, 1997 GMC Pickup, 1997 Chevrolet Pickup, 1997 Chevrolet Chevy Van, and 1997 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Although valve clearance adjustment is not usually required (engine uses hydraulic valve lifters), perform the following procedure after servicing valve train.
- Rotate crankshaft until cylinder No. 1 is at TDC of compression stroke. Loosen rocker arm adjusting nut on intake valve of cylinder No. 1 until lash is present. Tighten adjusting nut until lash is removed, then tighten adjusting nut one full turn.
- Adjust remaining specified valves. See VALVE CLEARANCE ADJUSTMENT table. Rotate crankshaft 360 degrees to bring cylinder No. 6 to TDC of compression stroke. Adjust remaining specified valves.
VALVE CLEARANCE ADJUSTMENT
| Piston AT TDC Compression | Intake Valves No | Exhaust Valves No |
|---|---|---|
| No. 1 | 1, 2, 5 & 7 | 1, 3, 4 & 8 |
| No. 6 | 3, 4, 6 & 8 | 2, 5, 6 & 7 |