Valve mechanism — maintenance and repair (Chevrolet Tahoe 1)

1. If the valve mechanism parts are in an unsatisfactory condition, then the entire mechanism should be assembled, installing the parts in place on the cylinder head. The assembled head should be handed over to the dealer's service center for repair. Repair the head yourself (replacement of seats, guide bushings of rocker arm ball axles, grinding of the split plane, etc.) impossible, as special devices and equipment would be required.

2. After checking and repairing the valves and their drive parts, the cylinder head is completely restored. Before installing the cylinder head, wash it again to remove any remaining abrasive material from grinding the head or lapping the valves. If possible, blow out all the channels and holes of the cylinder head with compressed air.

(The original material is located on the website: ChevyMan)