Chevrolet 30 Series 1967 Service Manual page 69

3, Remove cowl ventilator by tipping edge at cowl hood
ledge to remove from tabs.
Installation
1. Insert cowl ventilator grille onto tabs at plenum as­
sembly making sure they all engage.
2. Inspect cowl hood ledge seal for fatigue or cuts and
replace if necessary.
3. Secure front edge of grille over lip of hood seal with
seven retaining screws.
4. Reinstall windshield wiper arms on pivot shafts.
COWL AIR VENTILATOR VALVE ASSEMBLY
Replacement
Entire outlet valve assembly may be removed from the
vehicle by removing two screws and depress the pins.
Refer to Figure 16. Also refer to Figure 17 for disas­
sembly of the flat face cowl air ventilator assembly.
WINDSHIELD WIPERS
Windshield wiper units on all models are of the two-
speed electric type. A single wiper motor unit, mounted
BODY IB -7
CHEVROLET TRUCK SERVICE M ANUAL