TM 5-3810-300-24&P-3
Fig. 2 - Typical Fuel Pump Mounting and Drive
excess fuel oil is mandatory. However, if leakage exceeds one
shaft. Fuel pump seals will always allow some seepage.
drop per minute, replace the seals.
Tapped holes in the pump body are provided to prevent fuel oil
from being retained between the seals. Excessive fuel
retention between the seals could provide enough pressure to
The drive and driven gears are a line-to-line to .001 "press fit
cause engine oil dilution by fuel, therefore, drainage of the
on their shafts. The drive gear is provided with a gear
retaining ball to locate the gear on the shaft (Fig. 2).
Fig. 3 - Fuel Pump Valving and Rotation (Right-Hand Pump)
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