Bronco L6-300 4.9L VIN Y 1-bbl (1983)
Manual, Volume D.
2.
Check the relationship of the drainback hole at the pump body to the sealing face of the seal (Figure 12). If the hole bridges the seal metal face,
thoroughly clean and dry the pump body seal mating surface with spot remover (B7A-19521-A).
Figure 14 - Front Pump Seal - Outside Diameter Metal Surface
3.
Obtain a new seal (C2AZ-7A248-A) and clean any oil that may be on the metal surface. Apply silicone sealant (E3AZ-19562-A) in a continuous
1/16" to 1/8" diameter bead to the outside diameter metal surface of the seal (Figure 14, Step 1). Distribute the bead of sealant into a thin film as
shown.
NOTE:
The silicone sealant is distributed in a cartridge tube. The nozzle should be cut to permit a flow of sealant 1/16" to 1/8" in diameter. Do not
apply more than a 1/8" bead as the drainback hole could become plugged.
4.
Apply a 1/16" to 1/8" diameter bead of sealant in the corner of the pocket of the pump body seal mating surface (Figure 14, Step 2).
NOTE:
The bead must be adequate across the drainback hole but not plug the hole. If the hole is blocked, drainback behind the seal will not be
provided and leakage could still occur.
