Mercury D4.2L D-Tronic

SEAWATER COOLING SYSTEM SERVICE MANUAL NUMBER 22
Page 6A-4 90-860074--1 FEBRUARY 2002
Seawater (Raw Water) System Specifications
Seawater Pump Delivery Rates
Description Engine rpm
Liters (U.S. Gallons)
Per Minute
2000 60 (16)
D2.8L D-Tronic
3000 87 (23)
3800 109 (29)
2000 71 (19)
D4.2L D-Tronic
3000 98 (26)
3800 114-1/2 (30-1/2)
Seawater Pickup Connections
SEAWATER PICKUP HOSE
Description
D2.8L D-Tronic
D4.2L D-Tronic
Seawater Pickup Hose Diameter
38 mm (1-1/2 in.)
Minimum
SEACOCK (WATER INLET VALVE)
Description
D2.8L D-Tronic
D4.2L D-Tronic
Seacock Size (Internal Cross Sectional Area)
38 mm (1-1/2 in.)
Minimum
SEAWATER STRAINER
Description
D2.8L D-Tronic
D4.2L D-Tronic
Seawater Strainer Flow Requirement
150 liter
(40 U.S. Gallons)
Minimum Per Minute
THROUGH THE HULL SEAWATER PICKUP
Description
D2.8L D-Tronic
D4.2L D-Tronic
Seawater Pickup Flow Requirement
150 liter
(40 U.S. Gallons)
Minimum Per Minute