Draining Water From The Gen Iii Cool Fuel Module - Mercury Mercruiser Tow Sport 5.7 MPI Manual

d. Fuel‑cooler‑to‑thermostat‑housing hose
a
e. Check valve
a
3. On models with a seawater pickup pump, remove the two blue drain plugs. If the seawater pickup pump does not have
blue drain plugs, or you are unable to access them, loosen the clamps and remove both hoses.
a - Hose clamps
b - Blue drain plugs
4. Crank the engine over slightly with the starter motor to purge any water trapped in the seawater pickup pump. Do not allow
the engine to start.
5. Before launching the boat or starting the engine, close the drain system by installing the blue drain plugs.
6. Open the seacock, if equipped, or unplug and reconnect the water inlet hose before operating the engine.

Draining Water from the Gen III Cool Fuel Module

Mercury MerCruiser recommends draining the Gen III Cool Fuel Module if it is equipped with a drain plug.
1. Remove the drain plug from the Gen III Cool Fuel Module and allow the water to completely drain from the module.
2. Inspect the drain plug and the O‑ring for damage. Replace if needed.
90-8M0076545 NOVEMBER 2012
eng
6144
6131
a
b
a - Drain plug
a - Drain plug (if equipped)
Section 6 - Storage
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