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Mercury 4.2 Diesel User Manual

Mercury 4.2 Diesel
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Section 4 - Maintenance
Page 66 90-8M0113987 eng DECEMBER 2015
7. Place the remote control in neutral, idle speed position and start the engine.
NOTICE
Operating the engine out of the water at high speeds creates suction, which can collapse the water supply hose and overheat
the engine. Do not operate the engine above 1400 RPM out of the water and without sufficient cooling water supply.
8. Operate the engine at idle speed in neutral for about ten minutes or until the discharge water is clear.
9. Observe the water temperature gauge to ensure that the engine is operating in the normal range.
10. Stop the engine.
11. Shut off the water tap.
12. Remove the sterndrive flushing attachment.
13.
If your power package uses a throughhull pickup,
a. Remove the adapter from the seawater pump inlet hose connection.
b. Reconnect the seawater inlet hose. Tighten the hose clamps securely.
With the Boat in the Water
NOTICE
Disconnecting the seawater inlet hose will cause water to enter the bilge resulting in engine damage. Close the seacock
before disconnecting the seawater inlet hose. Plug the seawater inlet hose immediately after disconnecting it.
1. Close the seacock, if equipped, or disconnect and plug the seawater inlet hose.
Typical
a - Seacock
b - Seawater inlet hose
c - Plug
2. Using an appropriate adapter, connect a flushing hose from a water tap to the seawater inlet hose connected to the
seawater pump inlet.
2.8 shown, 4.2 similar
a - Adapter
b - Flushing hose
c - Water tap
d - Seawater inlet hose
3. Lower the sterndrive to the full down (in) position.
4. Partially open the water source to about 1/2 maximum. Do not use full water pressure.
a
b
c
13171
23450
c
b
a
d

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Mercury 4.2 Diesel Specifications

General IconGeneral
BrandMercury
Model4.2 Diesel
CategoryEngine
LanguageEnglish

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