Installation manual

5-17

90-898305

Priming the Oil Pump

NOTE: If a new powerhead is being installed or oil hoses/oil pump has been

removed, it is recommended all air be purged from oil pump/oil lines. This can

be accomplished by using a gearcase leakage tester(FT-8950). Connect the

leakage tester to the inlet t-fitting on the onboard oil reservoir. While clamping

off the inlet hose, manually pressurize the reservoir to 10 psi. Using the Digital

Diagnostic Terminal 91-823686A2, activate the oil pump prime sequence.

Maintain the 10 psi pressure throughout the auto prime sequence. When the

auto prime is completed, remove the leakage tester and refill the onboard oil

reservoir.

Priming the oil pump (filling pump and hoses) is required on new or rebuilt

engines and any time maintenance is performed on the oiling system.

There are three methods for priming the oil pump:

METHOD 1 - SHIFT SWITCH ACTIVATION PRIME

This method does three things:

a) Fills the oil pump, oil supply hose feeding pump and oil hoses going to

the crankcase and air compressor.

b) Activates break-in oil ratio.

c) Initiates a new 120 minute engine break-in cycle.

Refer to priming procedure following.

METHOD 2 - (DDT) DIGITAL DIAGNOSTIC TERMINAL – RESET

BREAK-IN

This method is the same as Method 1, except the run history and fault history

are erased from the ECM.

Refer to procedure in the Technician Reference Manual provided with the

Digital Diagnostic Software Cartridge.

Notes

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