Oil Pump Priming Instructions
IMPORTANT: Remanufactured Marine Longblock Engines are temporarily fit with electrical systems, fresh water cooling systems, and premium fuel to perform a series of “Hot-Test” validations for quality control purposes. Thereafter, the engine oil drains back into the pan and loses its lubrication value from the valve-train and cylinder walls. Mercruiser REQUIRES the installer to perform an “Oil Priming” procedure prior to the engines initial start-up to reduce the potential for premature bearing failures.
NOTE: There are two different methods to prime a marine engine prior to ignition. Either can be used.
Method A- Utilizing a Quicksilver engine-oil priming tool (purchase locally)
Method B- Performed with a remote-starter-switch (tool# 91-52024A 1)
Method A (preferred)
1.Fill engine crankcase to proper level with recommended marine engine oil.
2.Remove the complete Distributor assembly.
3.Install the oil “priming tool” into the distributor bore and onto the oil pump shaft.
4.Rotate the oil pump with an electric drill for approximately 2-minutes, or until oil pressure gauge.
5.Remove the priming tool and reinstall the distributer according to instructions outlined in a MerCruiser service manual.
Method B (optional)
1.Fill engine crankcase to proper level with recommended marine engine oil.
2.Remove all spark plugs
3.Disconnect the high-energy wire from distributer and connect it to a good ground
4.IMPORTANT: Leave ignition key in the OFF position.
5.Connect one end of the “Remote-starter-switch” to the 12-volt red positive battery cable terminal and the other end to the smaller (yellow-red) terminal on the starter motor. Note: If you opt to use the ignition switch instead of the remote-starter, disconnect the PUR wire from the coil before turning the key. Cover the PUR wire with tape to avoid a possible ground condition.
6.Crank the engine over for approximately 15-18 seconds. Let the starter motor cool down for 1-minute before cycling again. Repeat this process 6 more times.
7.Remove the remote-starter-switch, or reconnect the PUR wire to the ignition coil.
8.Install the spark plugs and plug wires.
9.Start the engine with a good supply of cool water.