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MerCruiser 3.0 MPI User Manual

MerCruiser 3.0 MPI
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Section 5 - Maintenance
90-899883272 MARCH 2008 Page 73
Tube Ref No. Description Where Used Part No.
94
Anti-Corrosion Grease Propeller shaft 92-802867Q 1
95
2-4-C Marine Lubricant with
Teflon
Propeller shaft 92-802859A 1
2. Slide thrust hub onto propeller shaft, with stepped side toward propeller hub.
3. Install Flo‑Torq II Drive Hub into propeller.
NOTE: The drive sleeve is tapered and will slide fully into the propeller as the nut is
tightened and properly torqued.
4. Align splines and place propeller on propeller shaft.
5. Install drive sleeve and locking tab washer.
6. Install and torque the propeller nut.
Description Nm lb‑in. lb‑ft
Propeller nut (minimum) 75 55
7. Bend three tabs on the tab washer down into the grooves in spline washer. After the
first use, bend the three tabs straight and retorque the propeller nut. Bend tabs back
down into spline washer. Check propeller at least after 20 hours of operation. Do not
operate with loose propeller.
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.
b
d
c
a
7170
a - Power steering pump pulley
b - Water circulating pump pulley
c - Crankshaft pulley
d - Alternator pulley
Checking
1. Check the drive belt for excessive wear, fraying, glazed surfaces, or 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.
2. Inspect the drive belt for a proper tension of 6 mm (1/4 in.) deflection. Check the belt
tension by applying moderate thumb pressure on the belt at the longest distance
between the two pulleys.

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MerCruiser 3.0 MPI Specifications

General IconGeneral
Horsepower135 hp (101 kW)
IgnitionElectronic
Cylinders4
AspirationNaturally Aspirated
Compression Ratio9.3:1
Full Throttle RPM4400-4800 RPM
Displacement3.0L / 181 CID
Fuel SystemMulti-Port Injection (MPI)
Bore x Stroke4.00" x 3.60" (101.6mm x 91.4mm)
Fuel Requirement87 Octane Minimum
Engine TypeInline 4
Cooling SystemRaw water
Alternator Output65 amp

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