MAZDA GF4A-EL- Front Seal Blowout Or Chronic Leaker
CAUSE: The cause may be, insufficient drainback passages in the pump support, or worn or misplaced bushing in the torque converter.
CORRECTION NUMBER 1: Remove the pump support and bearing race. With drill or die grinder, enlarge and deepen the factory drainback passage in the "Rear" of the pump support, as shown in Figure 1. Notice that the drainback hole and the passage to the "Dotted Line" are both enlarged.
CORRECTION NUMBER 2: Measure dimension "A" as shown in Figure 2, and measure dimension "C" as shown in Figure 3. Subtract "C" from "A", and ensure the difference is .003"-.006". Also check the distance between the bushing and the top of the converter hub, shown as dimension "B" in figure 2. This distance should be .078" to .125", adjust as necessary.