Section 5 - Maintenance
90-8M0069751 eng APRIL 2012 Page 79
Dual Water Pick‑up Flush Gearcase Seal
Kit
91‑881150K 1
Blocks off the front water inlet holes on the dual water inlet gearcases.
d. Lower the sterndrive to full down position.
3.
If flushing the seawater system with the boat out of the water:
a. Lower sterndrive to full down position.
b. Remove the propeller.
c. Install the appropriate flushing attachment over the water inlet holes in the gear housing.
4. Connect a hose from a water tap to the flushing attachment.
Typical
a - Flushing attachment
b - Hose
IMPORTANT: Engines with the sterndrive water inlet blocked off at the gimbal housing and using a through‑hull or
through‑transom water inlet need a supply of cooling water available to both the sterndrive and to the engine during
operation.
5. Connect a second flushing hose from a water tap to the seawater inlet hose connector or to the seawater pump inlet using
an appropriate adapter.
a - Seawater pump inlet
b - Seawater pump
c - Seawater pump outlet
d - Fuel cooler (if equipped)
6. With the sterndrive in the normal operating position, partially open both the sterndrive and engine flushing water supplies
(about 1/2 maximum flow). Do not use full water pressure.
IMPORTANT: Ensure that there is an adequate supply of cooling water to both the sterndrive and the engine during
operation.
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