BIGFOOT GEAR HOUSING
90-857046R1 NOVEMBER 2001 Page 6B-57
Gear Housing Pressure Test
1. Remove vent plug and install pressure test gauge.
2. Pressurize housing to 10-12 psi
(69-83 kPa)
and observe gauge for 5 minutes.
3. Rotate drive shaft, prop shaft and shift shaft while housing is pressurized to check for
leaks.
4. If pressure drop is noted, immerse housing in water.
5. Re-pressurize to 10-12 psi
(69-83 kPa)
and check for air bubbles.
6. Replace leaking seals as necessary. Retest housing.
NOTE: Gearcase should hold 10-12 psi (69-83 kPa) for 5 minutes.
7. Remove tester from housing and install vent plug and sealing washer. Tighten to specified
torque.
Vent Screw Torque
60 lb. in. (7.0 Nm)
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