B350 1 Ton Van V8-360 5.9L VIN W (1985)
FIGURE 2
4.
Clamp water valve, PN 4085474, onto the straight end of heater hose, PN 4361146, which was cut off in Step 3 above. This water valve has an
embossed arrow on it to indicate water flow. This arrow must point toward the heater core or precise control of water flow to the heater will be
impossible. Proper orientation of this valve is illustrated in Figure 2. Install heater hose, PN 3849197, on the other side of the water valve.