MerCruiser 496 MAG Owner's Manual page 103

20. Insert the dust cover in the flush socket on the engine.
18490
IMPORTANT: If the unit is to be stored in the water, the seacock should remain closed until time of usage. If unit is to be
stored out of the water, open the seacock.
21. Open the seacock, if equipped, or reconnect the alternative water inlet source prior to operating the engine.
90-899883274 MARCH 2008
a
Dust cover installed in the flush socket
a - Dust cover
b - Flush socket
b
Section 5 - Maintenance
Page 95