Sterndrive Water Pickups - MerCruiser 496 MAG Bravo User Manual

Flushing Device
Dual Water Pick‑up Flush Gearcase Seal Kit

STERNDRIVE WATER PICKUPS

There are two types of water pickups available on Mercury MerCruiser sterndrives: dual
water, and side pickups. Dual water pickups require the flushing attachment (44357Q 2)
and the flush seal kit (881150K 1), and side pickups require the flushing attachment
(44357Q 2).
Dual Water Pickup
NOTE: Flushing is needed only for salty, brackish, mineral laden or polluted water
applications. Flushing is recommended after each outing for best results.
If flushing the engine with the boat in the water, seawater can flow into the engine causing
damage. The water inlet must be closed when flushing the engine.
1. On seawater cooled models: Proceed to Step 3. or Step 4.
2. On Bravo closed cooled models using the sterndrive seawater inlet and a
through-hull or through-transom alternative water pickup: Flushing water will need
to be supplied to only the sterndrive by taking the following steps to block, or disconnect
and block, the hose from the alternative seawater pickup pump inlet Y‑fitting.
a.
90-864839061 NOVEMBER 2006
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9194
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If equipped with a seacock, close the seacock in the hose from the alternative
water pickup.
91‑44357Q 2
Attaches to the water intakes; provides a fresh water
connection when flushing the cooling system or operating the
engine.
91‑881150K 1
Blocks off the front water inlet holes on the dual water inlet
gearcases.
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Side Pickup
CAUTION
!
Section 5 - Maintenance
Page 109