E 350 Van L6-300 4.9L VIN E 1-bbl (1982)
Figure 21 - BLOWER HOUSING FLANGE AND DOOR SHAFT SEALING
4.
Check the lower flange of the blower housing to evaporator housing (Figure 21) for leaks by plugging drain tube and pouring a quantity of
warm water into the blend door frame, through the blower motor opening, until the water level is approximately 3/8 inch deep. If leakage is
noted, drain housing and proceed to the next step. Otherwise, remove plug from drain tube, drain housing and proceed to Step 8.
5.
If leakage was noted from the bottom end of the OUTSIDE-RECIRC door shaft, blow compressed air around the end of the shaft area until
thoroughly dry. Apply black silicone sealer, D6AZ-19562-A, liberally and completely over the end of the shaft and boss to seal the area to the
housing (Figure 21).
6.
If leakage was noted from the flange, remove 8 screws from the bottom and sides of the housing flange (2 screws inside blower housing).
Leave the top 3 screws in place as well as the vacuum actuator shaft clip.
