Section 5 - Maintenance
Page 80 90-8M0074347 eng OCTOBER 2012
9. Supply cooling water to the engine.
10. Start the engine. Check for gasoline leaks around the fuel filter assembly. If leaks exist, stop the engine immediately.
Recheck the filter installation, clean spilled fuel and properly ventilate the engine compartment. If leaks continue, stop the
engine immediately and contact your authorized Mercury MerCruiser dealer.
Fuel Pump Sight Tube Inspection
1. The engine fuel pump is equipped with a sight tube which gives visible evidence of a ruptured fuel pump diaphram.
IMPORTANT: If fuel is visible in tube, the fuel pump should be replaced by your Authorized Mercury MerCruiser Dealer
immediately.
a - Sight tube
Drive Belts
!
WARNING
Inspecting the belts with the engine running may cause serious injury or death. Turn off the engine and remove the ignition
key before adjusting tension or inspecting belts.
a - Power steering pump pulley
b - Water circulating pump pulley
c - Crankshaft pulley
d - Alternator pulley
Checking
1. Inspect the drive belt for proper tension and for the following:
• Excessive wear
• Cracks
NOTE: Minor, transverse cracks (across the belt width) may be acceptable. Longitudinal cracks (in the direction of
belt length) that join transverse cracks are NOT acceptable.
• Fraying
• Glazed surfaces
• Proper tension ‑ 6 mm (1/4 in.) deflection, with moderate thumb pressure, on the belt at the location that has the
longest distance between two pulleys.
Replacing - Front Mount Models
Power Steering Pump Drive Belt, if equipped
1. Loosen power steering pump attaching bolts and mounting bolts.
2. Pivot power steering pump toward engine, as required, until belt can be removed.
a
7162
b
d
c
a
7170
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