Mercury MerCruiser 3.0 MPI - Models with Closed Cooling

COOLING SYSTEM SECTION - 5
Page 4 / 4 90-899883183 DECEMBER 2007
Models with Closed Cooling
1
3
4
5
6
7
8
2
9
10
11
12
32648
1 - Seawater intake
2 - From transom
3 - Power steering cooler (if equipped)
4 - Heat exchanger
5 - Coolant circulating pump
6 - Thermostat housing reservoir
assembly
7 - Engine block and cylinder head
assembly
8 - Exhaust manifold
9 - Exhaust elbow
10 - Poppet valve
11 - Indicates glycol coolant flow
12 - Indicates raw water coolant flow