250 HP JET DRIVE INSTALLATION MANUAL
Page 32
90-10240040 DECEMBER 2003
5. Fill remote oil tank with the recommended oil listed in the Operation and Maintenance
Manual. Tighten fill cap.
6. Remove cap and fill engine oil tank with oil. Reinstall the fill cap.
a
a-Engine Oil Tank
7. All Mercury Jet Drive powerheads have the oil systems primed. To determine if reprim-
ing is necessary, check the clear oil line between the engine oil reservoir and the oil
pump. If there are no air bubbles in the line, it is not necessary to reprime the oil system.
If air bubbles are present, it will be necessary to reprime the system using the Digital
Diagnostic Terminal (DDT). This method fills the oil pump, oil supply hose feeding pump,
and oil hoses going to the vapor separator. Refer to procedure in the Technician Refer-
ence Manual provided with the Digital Diagnostic Software Cartridge Part. No.
91-880118.
8. Loosen the fill cap on the engine oil tank.
9. Start the engine. Run the engine until all the air has been vented out of the tank and oil
starts to flow out of the tank. Re-tighten fill cap.
a
a-Engine Oil Tank
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