POTENTIAL CAUSE(S)

CHECK THESE FIRST:

1. DIRT ON CYLINDER COOLING FINS
Clean cylinder cooling fins.

2. WORN OR SLIPPING FAN BELT
Tighten or replace fan belt.

CHECK THESE NEXT:

3. DIRTY OIL COOLER
Clean debris from exterior of oil cooler.

4. AIR LEAK IN FAN SHROUD
Have fan shroud professionally repaired.

CHECK THIS LAST:

5. IMPROPERLY ADJUSTED AIR CONTROL RING
Have air control ring professionally adjusted.