Specifications
Description Specification
Thermostat operating temperature 60° C (140° F)
Crossover with Thermostat—Exploded View
Ref. No. Qty. Description
Torque
Nm lb‑in. lb‑ft
1 1 Crossover with fittings
2 2 Barbed hose fitting 50.2 – 37
3 2 Plug 50.2 – 37
4 1 O‑ring
5 1 Blue drain plug Hand tight
6 2 Screw 27.1 – 20
7 1 Thermostat cap
8 1 Thermostat cap gasket
9 1 Thermostat (60° C [140° F])
10 1 Thermostat housing gasket
11 2 Crossover seal
12 1 Temperature sensor 16.3 144.2 –
13 1 Barbed hose fitting 10.9 96.4 –
Thermostat Assembly
Thermostat Removal from the Crossover
1. Allow the engine to cool, and drain the seawater from the engine.
2. Remove the thermostat cap from the crossover assembly.
3. Remove the thermostat cap gasket, thermostat, and thermostat housing gasket from the crossover assembly.
Thermostat Testing
1. Remove the thermostat.
2. Place the thermostat on blocks in a container.
3. Add water to the container until it covers the thermostat.
Models with Standard Cooling
Page 6B-2 © 2016 Mercury Marine 90-8M0099748 eng DECEMBER 2015
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